We Provide Full Scope Mobile Development Expertise
Onix is a full-cycle software development company that builds well-suited solutions to drive company outcomes for startups, small and medium-sized businesses.
1100+ Successfully delivered projects 23+ Years of experience in software development 55+ Countries represented by clients 370+ Talented multi‑dimensional experts
We’re a competent software development team that delivers reliable products for various industry domains: -> eLearning -> Travel & Tourism -> Healthcare -> FinTech -> Sports & Fitness -> Retail & E-commerce -> SaaS
We offer a full range of software development services to shape your idea into a viable product and help your business succeed. Our development services comprise well‑established methodologies and years of experience in building exceptional custom software solutions on time and within budget! Get innovative, secure, and solid products using our full-cycle software development services: -> Mobile App Development (iOS, Android, cross-platform solutions) -> VR/AR Development -> Web Development -> UI/UX Design -> DevOps -> QA -> Building a Dedicated Team -> Discovery Phase -> MVP Development -> UX Audit -> Lean Inception
Our solutions boost clients' business efficiency and satisfy users' expectations.
We use a reliable and top-notch set of technologies to deliver products of the highest quality. Backend development: Python, Node.js, Java, Ruby, PHP Frontend development: React.js, Vue.js, CSS, HTML5 Mobile development: Kotlin, Flutter, Swift, Objective-C, React Native Platform customization: Shopify, WordPress, Salesforce, Magento, OpenCart, Canva VR/AR and 3D design: Unity, Visual Studio, Blender, Maya, Houdini, V-Ray Cloud storage: AWS, Azure, Google Cloud Platform, Heroku, DigitalOcean
Our software development model is fully transparent and efficient since we use the agile approach to manage the development process.
Onix-Systems is recognized for providing good value for cost, with many clients highlighting affordable pricing that fits their budgets. Specific project costs are often not disclosed, but clients consistently note high-quality work delivered on time, making it a cost-effective choice.
Many clients commend Onix-Systems for their strong project management skills, characterized by timely deliveries, clear communication, and adaptability to project changes. Regular updates and proactive problem-solving are frequently highlighted.
High-Quality Design and UI/UX
Onix-Systems is recognized for delivering visually appealing and user-friendly designs. Their work in UI/UX design is often praised for enhancing user experience and meeting client branding needs.
Impressive Technical Expertise
Clients consistently highlight Onix-Systems' technical proficiency across various programming languages and frameworks, including Python, Java, and Laravel, which has enabled them to tackle complex projects successfully.
Proficiency in Web and App Development
Onix-Systems is praised for their expertise in developing websites and mobile applications across various industries. They have successfully delivered projects using technologies like Vue.js, Next.js, and React Native, often exceeding client expectations.
Flexibility and Adaptability
Onix-Systems demonstrates a strong ability to adapt to changing client needs, offering flexible solutions and scalable resources that accommodate project demands and ensure continuous improvement.
Challenges with Communication and Language
While generally positive, some reviews mention occasional language barriers and communication challenges, particularly in technical discussions, which could affect project understanding and execution.
Onix-Systems provides software design and development services for an EOR company. The team has designed the database schema using PostgreSQL, implemented the UI with React and Vite, and used Claude AI.
Onix-Systems has delivered faster and safer software, exceeding the client's expectations. The team has worked perfectly within the client's organization and has a good culture of collaboration. Moreover, they listen to the client's requirements and are not driven by body count.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CTO of Teamed Ltd.
Describe what your company does in a single sentence.
We are an Employer of Record
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Introduce competent software design and development skills
SOLUTION
How did you find Onix-Systems?
Online Search
Why did you select Onix-Systems over others?
High ratings
Close to my geographic location
Pricing fit our budget
Good value for cost
Company values aligned
How many teammates from Onix-Systems were assigned to this project?
1 Employee
Describe the scope of work in detail. Please include a summary of key deliverables.
The resource from Onyx is responsible for design, architecture and implementation of key parts of the company platform. We are transitioning from a legacy application written in Ruby on Rails to a Python based server. AI plays a big part in processing data.
* Database schema design using Postgresql * Implementing the UI in React/Vite * Implementing backend business logic in Python * Using Claude Code from Anthropic to the maximum extent for productivity * Working with clients to understand requirements and translate those rapidly into implementations while liaising with the users to achieve the best UX outcome
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
We were transitioning from a legacy development services provider. The result was much faster and safer software production.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
We have one teammember from Onyx working under our own project management. That Onyx teammember works perfectly within our organisation.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
What did you find most impressive or unique about this company?
Listening to our requirements. Not driven by body count. They have a good culture of collaboration.
Are there any areas for improvement or something Onix-Systems could have done differently?
Not at this time
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Wellness Company
Custom Software DevelopmentOther Application DevelopmentWeb Development
$10,000 to $49,999
Aug. 2025 - Feb. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"The overall quality of work, communication, and technical expertise clearly exceeded our expectations."
Feb 9, 2026
CEO, MyWellness Südtirol
A. K.
Verified
Other industries
Bolzano, Italy
1-10 Employees
Online Review
Verified
Onix-Systems developed a web platform using a Next.js template as the technical foundation for a wellness company. The team customized the template, created the frontend and backend, and integrated a CMS.
Onix-Systems delivered a fully functional, scalable, and customizable platform with a clean codebase. The team's well-organized and transparent project management ensured clear communication and timely deliverables. Onix-Systems' flexibility, proactive approach, and high-quality work stood out.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of MyWellness Südtirol
Describe what your company does in a single sentence.
We build and operate a premium digital platform that connects travelers with high end wellness hotels in South Tyrol through curated content and modern web technology.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Build a scalable, high quality web platform with a modern frontend and a robust backend architecture.
Implement a clean, maintainable codebase that allows future feature expansion and long term growth.
Ensure a smooth development process with clear communication, reliable delivery, and professional technical guidance.
SOLUTION
How did you find Onix-Systems?
upwork
Why did you select Onix-Systems over others?
High ratings
Describe the scope of work in detail. Please include a summary of key deliverables.
The scope of work focused on building a multilingual wellness web platform using a premium Next.js template as the technical foundation. Onix Systems handled the setup and customization of the template, frontend and backend development, CMS integration, and overall technical architecture based on a headless approach with Next.js.
The project followed an iterative development model. An initial version of the platform was deployed quickly, after which visual adjustments, functional refinements, and structural improvements were implemented step bysze by step based on feedback. This approach allowed early validation of flows while continuously improving performance, usability, and maintainability.
Key deliverables included a fully functional multilingual website, customized template components, integrated content management, and a scalable codebase designed for future feature expansion and long term growth. Onix also provided technical consulting, architectural guidance, and ongoing support throughout the development process.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The project resulted in a fully functional multilingual web platform built on Next.js, ready for production use and further scaling.
We achieved a significantly faster time to launch by using a template based approach while still reaching a high level of customization in design and functionality.
The final codebase is clean, well structured, and maintainable, allowing new features and pages to be added efficiently without rework.
Page performance, stability, and overall usability met our expectations, and the platform is now technically prepared for SEO growth, traffic scaling, and long term development.
The collaboration also reduced technical risk by establishing a solid architecture and clear development standards from the beginning.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Project management was well organized and transparent throughout the entire collaboration. We worked with Roman as our project manager, and he did a great job coordinating the team, keeping everything structured, and ensuring clear communication at all times.
Timelines were clearly communicated, and deliverables were generally provided on time or adjusted proactively when additional clarification or feedback was needed. The team responded quickly to questions and requests, explained technical topics clearly, and proposed practical solutions when challenges arose.
Overall, the project was handled reliably and professionally, with a strong focus on understanding our needs and delivering accordingly.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
What did you find most impressive or unique about this company?
What impressed us most was the level of customization and flexibility Onix Systems offered, even while working with a template based approach. The team adapted the solution very precisely to our specific needs instead of forcing us into a rigid structure.
Roman, our project manager, stood out with extremely fast, proactive, and clear communication, which made the collaboration smooth and efficient. The developers delivered high quality work with a strong focus on clean code, stability, and scalability.
In addition, the price performance ratio was exceptionally good. The overall quality of work, communication, and technical expertise clearly exceeded our expectations for the investment made.
Are there any areas for improvement or something Onix-Systems could have done differently?
Honestly, we do not see any significant areas for improvement. We were very open throughout the project and always encouraged feedback or adjustments whenever needed.
Any changes or new requests were implemented extremely quickly and with a high level of quality, often exceeding our expectations. Communication was proactive, and potential issues were addressed before they became problems.
From our perspective, the collaboration ran very smoothly, and we cannot point to anything that Onix Systems should have done differently.
RATINGS
5.0
"Very positive overall experience. Smooth collaboration, fast communication, and a strong sense of partnership. We would definitely work with them again."
Quality
5.0
Service & Deliverables
"High quality work across frontend, backend, and architecture. Clean code, well thought out solutions, and strong attention to detail throughout the project."
Schedule
5.0
On time / deadlines
"Deliverables were consistently on time or communicated proactively when adjustments were needed. The team was reliable and well organized."
Cost
5.0
Value / within estimates
"Excellent value for money. The quality of work, level of customization, and professional project management clearly exceeded expectations for the cost."
Willing to Refer
5.0
NPS
"We would highly recommend Onix Systems based on their strong technical expertise, excellent communication, and reliable project management. The team delivered high quality results, adapted quickly to our needs, and provided outstanding value for money. We would gladly work with them again on future projects.
UX/UI Design for VR App Dev Company
AR/VR DevelopmentApplication TestingUX/UI Design
$10,000 to $49,999
Feb. - Apr. 2025
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0
"Everything was always on time and within budget with consistently exceptional communication."
May 8, 2025
Founder & Director, Livelens
James McAllister
Verified
Arts, entertainment & music
United Kingdom
1-10 Employees
Online Review
Verified
Onix-Systems developed a virtual reality app's MVP. The team worked on the app's user flow, UI, user journey, onboarding, event booking, and more.
Onix-Systems delivered the project on time and within budget. The team provided weekly builds and updates, ensuring consistent communication and quick responses. Their adaptability to the project's requirements and the quality of their work were commendable.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Founder, Director of Livelens
Describe what your company does in a single sentence.
Virtual reality app for live music events
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Create an MVP for Livelens
SOLUTION
How did you find Onix-Systems?
Online Search
Why did you select Onix-Systems over others?
High ratings
Pricing fit our budget
Good value for cost
Company values aligned
How many teammates from Onix-Systems were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
LiveLens User flow and UI
User journey
(this describes complete development- MVP will be a simplified version with core features)
Onboarding:
. Signing up for the app- selecting subscription preferences
. Selecting profile preferences
. Selecting user
Exploring events:
. Browse available events- home page with all events, featured events and recommended events (based on previous viewings)
. Search events
. Filtering based on preferences- date, genre, location, artist, time etc
. Browse liked events
Interacting with friends:
. Add/remove friends by username
. Chat to friends
. Invite friends to events
Booking an event:
. Selecting an event to either join or like- able to see number of viewers and event details in preview/enlarged thumbnail
Attending event:
. Join event through app
. Interacting with friends in chat pop up
Post event feedback:
. Review event
. Provide feedback
MVP features
. Selecting user
. Event browsing, search and filtering
. Like events
. View liked events
. Chat to friends
. Joining event
. Chat in event
. Review event
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Weekly builds and updates
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Everything was always on time and within budget with consistently exceptional communication and quick responses. Project management was adaptive and bespoke to project needs.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Too many thing sto say just one! However, the adaptability to project requiremnts whilst mainting strong progress and qaulity was fantantastic.
Are there any areas for improvement or something Onix-Systems could have done differently?
N/A
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Stock Market Solutions Company
API DevelopmentCustom Software DevelopmentDevOps Managed Services
$200,000 to $999,999
Nov. 2023 - Ongoing
1.0
Quality
0.5
Schedule
0.5
Cost
2.5
Willing to Refer
0.5
"We would strongly caution others against engaging with this firm based on our experience."
Apr 24, 2025
Co-Founder, Stock Market Solutions Company
Anonymous
Verified
Other industries
Hollywood, Florida
11-50 Employees
Online Review
Verified
Onix-Systems has been hired by a software company to develop a feature-rich, real-time stock market solution. The team has been tasked with delivering a stable, scalable backend and stable frontend code.
The client is deeply disappointed with Onix-Systems' work. The team has failed to deliver a stable product, and the client has experienced language barriers, a lack of qualified developers, and unprofessional conduct. The client has also found the team dishonest and lacking trust and transparency. This review includes the service provider's response.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Co-Founder of a software company
Describe what your company does in a single sentence.
Developing real-time stock market solutions for investors and traders
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Real-time data solutions
Feature-rich platform with high stability
SOLUTION
How did you find Onix-Systems?
Clutch Site
Why did you select Onix-Systems over others?
High ratings
Pricing fit our budget
Good value for cost
How many teammates from Onix-Systems were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
What were the measurable outcomes from the project that demonstrate progress or success?
Unfortunately, our experience with Onix Systems was deeply disappointing and frustrating. We entrusted them with developing our application, but the engagement fell short in nearly every critical aspect. Core stability goals were never met, the product was riddled with issues, and even basic functionalities were either broken or unreliable. Developers frequently lacked the technical expertise needed, and key requirements were misunderstood or ignored entirely. The project never reached a point where we could confidently deploy the product as expected:
1. Unmet Stability Goals: From the start, our application suffered from serious stability issues. The product consistently failed to meet our basic performance and reliability benchmarks, leading to frequent crashes and poor user experience. These shortcomings ultimately forced us to transition the project to another team altogether.
2. Language & Communication Barriers: One of the most persistent challenges was the language barrier. Communication was unclear and often led to misunderstandings, delays, and rework. This made it incredibly difficult to align expectations, provide feedback, and receive timely updates on progress.
3. Lack of Qualified Developers: The developers assigned to our project did not possess the level of expertise required. We were assured of senior-level talent, but the reality was far different. The few competent engineers we did work with were abruptly removed from our project and reassigned elsewhere.
4. Dishonesty and Unprofessional Conduct: Perhaps the most concerning issue was the dishonesty we encountered. We were misled about the availability of key team members — told they were on extended leave, only to later discover they had been moved to other projects. This pattern of dishonesty was not a one-off; it became a regular obstacle that made collaboration stressful and unreliable.
Final Thoughts Working with a partner requires trust, transparency, and technical reliability — all of which were severely lacking in our experience with Onix Systems. We would strongly caution others against engaging with this firm based on our experience.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Our experience with Onix Systems was unfortunately very poor, marked by instability, miscommunication, and unprofessional conduct. Despite initial promises and positive first impressions, the engagement failed to meet our expectations on several critical fronts. One important feature was under development for over three months with no progress updates — only to later be delayed by another six months because the developer did not understand the requirements and failed to raise any concerns. This level of delay and lack of ownership was unacceptable. The time lost, quality issues, and need to switch to another team significantly offset any cost savings. In retrospect, we would have preferred to pay more for a competent, reliable team rather than try to recover from the setbacks this engagement caused:
1. Project Management & Delivery: Project management was one of the weakest aspects of the engagement. Deliverables were rarely, if ever, provided on time. One particularly crucial functionality was under development for over three months, only to be further delayed by another six months. The root cause? The developer assigned didn’t understand the requirements and failed to communicate this at any point during the initial work. This complete lack of transparency and proactive problem-solving severely hindered progress.
Communication overall was poor and inconsistent. The team lacked ownership and accountability, often needing repeated follow-ups to get updates or clarification. There was no urgency or process to escalate and resolve blockers, leaving us constantly in the dark and behind schedule.
2. Technical Execution: Stability goals were a core requirement — and almost none of them were met. The product was plagued with bugs and unpredictable performance. Instead of improving, issues would often compound due to ineffective fixes and misaligned priorities.
3. Team Composition & Misrepresentation: We were promised experienced, senior developers but were assigned individuals who clearly lacked the required expertise. Worse, the few skilled developers we did encounter were abruptly pulled from our project and reassigned elsewhere. The project manager falsely claimed they were on “extended leave,” which we later found out was untrue. This type of dishonesty made collaboration extremely difficult.
4. Communication & Trust: Working with Onix Systems became a constant struggle. Beyond language barriers, there was a deeper issue of frequent miscommunication, missed expectations, and blatant dishonesty. Trust quickly eroded, and it became impossible to work efficiently under such circumstances.
Final Recommendation Onix Systems may present themselves as capable and experienced, but in our case, they failed to deliver both in terms of product and professionalism. We do not recommend working with this company, especially if your project requires clear communication, timely delivery, and integrity.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
What did you find most impressive or unique about this company?
1 or 2 good frontend developers.
Are there any areas for improvement or something Onix-Systems could have done differently?
Communication Honesty Transparency Higher Quality Developers
The project suffered from severe delays, poor communication, unmet technical standards, and a lack of transparency from the team. Misleading updates and dishonest conduct from the project manager eroded trust entirely. We had to switch teams midway through the project, which cost us significant time and resources. Based on this, we cannot recommend them to others. Communication was inconsistent, developers were frequently reshuffled, and dishonesty from the project manager — including misrepresenting staff availability — made collaboration impossible. We ultimately had to abandon the engagement and move the entire project elsewhere. We do not recommend them.
Company Responses
The service provider responded on June 2, 2025.
We're sorry the experience felt this way at one point. We’re glad the challenges were resolved and the collaboration continues with strong, skilled developers from Onix. We value the trust and are committed to continuing our collaboration to ensure stability regardless of past setbacks.
RATINGS
1.0
"The overall experience working with Onix Systems was frustrating and stressful."
Quality
0.5
Service & Deliverables
"The overall quality of the work delivered was extremely poor."
Schedule
0.5
On time / deadlines
"Deadlines were consistently missed without any proactive communication."
Cost
2.5
Value / within estimates
"While the rates were not the highest on the market, the return on investment was very poor."
Willing to Refer
0.5
NPS
"Our experience with Onix Systems was overwhelmingly negative.
Branding & UX/UI Design for Sneaker Marketplace
BrandingUX/UI Design
Less than $10,000
Nov. 2024 - Jan. 2025
4.5
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0
"They are very professional, deliver work to a high standard, and are of great value for money."
Mar 26, 2025
Executive, The Sole Supplier
Anonymous
Verified
Media
United Kingdom
11-50 Employees
Online Review
Verified
Onix-Systems provided UI/UX design and branding services for a sneaker marketplace. The team designed a user flow and wireframes for the client's product and created brand guidelines and identity.
Onix-Systems' work resulted in great designs and a smooth user flow for the client's product. The team had a fast turnaround time and completed the project on time and within budget. Onix-Systems was very creative and professional, and their skills and ability to manage deadlines were remarkable.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am an executive at The Sole Supplier
Describe what your company does in a single sentence.
The Sole Supplier is a marketplace for sneakers, serving 4m+ monthly. We are the voice for UK sneaker culture.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Build UX for new feature
Build UI for new feature
Design screens for new offline product
SOLUTION
How did you find Onix-Systems?
Online Search
Why did you select Onix-Systems over others?
High ratings
Pricing fit our budget
Great culture fit
Good value for cost
How many teammates from Onix-Systems were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The goal was to create a user flow for a new feature / product that we were developing including wireframes and design.
The secondary goal was to design brand guidelines and assist on brand identity.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Great design
Great user flow
Fast turnaround
On time and budget
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Onix delivered amazing work at all stages. It was very creative, very clean and on time and budget. I was very impressed with Oleh from the design teams, skills and ability.
The project manager Karina was also amazing - helpful and professional at managing deadlines and new requirements
What was your primary form of communication with Onix-Systems?
Email or Messaging App
What did you find most impressive or unique about this company?
They are very professional, deliver work to a high standard, and are of great value for money. It is rare to find a company that tick all of these boxes. Most importantly, they are great people and very polite.
Are there any areas for improvement or something Onix-Systems could have done differently?
Not really.
RATINGS
4.5
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
5.0
NPS
Web Development for Flight Deal Source Co
Web Development
WordPress CMSHTML5PHP
Confidential
Feb. 2024 - Feb. 2025
4.0
Quality
4.0
Schedule
4.0
Cost
4.0
Willing to Refer
4.0
"They consistently address challenges with efficiency and professionalism."
Mar 25, 2025
Founder, Secret Flights Ltd
Yaneev Lanis
Verified
Other industries
Tel Aviv, Israel
1-10 Employees
Online Review
Verified
Onix-Systems developed a WordPress frontend for a flight deal source company. The team updated and modified plug-ins, themes, and integrations, fixed bugs, and performed maintenance.
Onix-Systems' work improved user engagement and functionality and reduced the number of reported bugs and downtime. The team was reliable and responsive, managed deadlines effectively, and aligned with the client's expectations. Overall, the team's problem-solving abilities were outstanding.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Founder of Secret Flights Ltd
Describe what your company does in a single sentence.
Secret Flights is the largest flight deal source and Meta Search engine in Israel. We specialize in monitoring airfare prices and notify our users when prices drop.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Frontend development on Wordpress
SOLUTION
How did you find Onix-Systems?
Upwork
Why did you select Onix-Systems over others?
High ratings
Good value for cost
How many teammates from Onix-Systems were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Develop and implement new features based on requirements. Update and modify existing plugins, themes, and integrations. Fix bugs and ensure platform stability after updates. Perform regular WordPress maintenance, including updates, backups, and monitoring. Optimize site performance and ensure security compliance.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Feature Development: Number of new features successfully implemented and their impact on user engagement or functionality. Bug Fixes: Reduction in reported bugs or downtime after fixes were deployed. Performance Improvement: Metrics like page load speed, uptime percentage, and overall system stability.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Their project management can be described as reliable and responsive. They consistently delivered tasks on time and managed deadlines effectively. They were attentive to your needs, addressing any requests or concerns promptly and with professionalism. Their ability to align with your expectations and provide timely updates demonstrates their strong organizational and communication skills.
What was your primary form of communication with Onix-Systems?
Email or Messaging App
What did you find most impressive or unique about this company?
What stands out most about this company is their exceptional responsiveness and problem-solving abilities. They consistently address challenges with efficiency and professionalism. Vlad, the lead developer, is particularly remarkable due to his around-the-clock availability for urgent issues, ensuring a swift resolution whenever needed.
Are there any areas for improvement or something Onix-Systems could have done differently?
An area for improvement for Onix-Systems could be in enhancing project management and testing processes. Strengthening these aspects would likely result in higher-quality deliverables and save you, as the hiring manager, time and effort. By implementing more thorough testing and closer oversight during project development, they could ensure smoother workflows and more polished outputs.
"They have an amazing culture of continuous improvement and an obsession with customer success!"
Mar 12, 2025
Head of Product, Software Company
Anonymous
Verified
Other industries
San Francisco, California
51-200 Employees
Online Review
Verified
Onix-Systems provides DevOps services for a software company. The team handles CI/CD, cloud infrastructure, and app development, primarily in Python. They manage the client's DevOps function and organization.
Onix-Systems has been a highly responsive and punctual team that adapts well to changing requirements. They've demonstrated the application's stability and reliability, ensuring a stable CI/CD workflow. Moreover, their culture of continuous improvement and customer success is impressive.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Head of Product of a software company
Describe what your company does in a single sentence.
We build an Insights Optimization Platform for enterprise BI teams, providing a BI Portal and optimization layer for getting the most ROI out of BI.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Own our DevOps function/team
SOLUTION
How did you find Onix-Systems?
Online Search
Why did you select Onix-Systems over others?
Great culture fit
Good value for cost
Company values aligned
How many teammates from Onix-Systems were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Onix owns our entire DevOps function/organization, providing a broad set of services around CI/CD, tooling, cloud infrastructure, and application development (primarily in Python).
Specifically, responsibilities have included the engineering and ongoing maintenance of:
All facets of application configuration and deployment for our platform, including building and hardening of Docker Images
Application Installer: our enterprise application requires a robust installer that adapts to many different deployment types, from Kubernetes to OpenShift, and beyond to all the various cloud orchestration environments like EKS, AKS and ECS.
User Sync Scripts: to sync with Active Directory / LDAP and other systems, a set of several powerful scripts is required to ingest many thousands of users from external systems so that users and groups are represented in our platform
Management Console: A fully isolated service that helps administer the platform/environment
Patcher: A service that can install patches for any of the other application services
What were the measurable outcomes from the project that demonstrate progress or success?
There are so many that they are difficult to list. A few of the key areas of success are:
Highly responsive team
Successful software installs in complex enterprise customer environments
Large volumes of users supported
Demonstrated stability and reliability of application
Stable CI/CD workflow, as well as ongoing stability of all key internal tools
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Project management is shared between Onix and our team. Onix is always punctual, sets reasonable expectations, and is able to adapt to changing requiremens.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
They have an amazing culture of continuous improvement and an obsession with customer success!
Are there any areas for improvement or something Onix-Systems could have done differently?
Can't think of any.
RATINGS
5.0
Quality
5.0
Service & Deliverables
"This is what it all comes down to. Can we ship code and depend on the solutions provided."
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Website Development for Design Agency
Application TestingCustom Software DevelopmentWeb Development
Less than $10,000
Nov. - Dec. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Onix-Systems’ technical expertise and commitment to delivering a high-quality product were truly impressive."
Dec 19, 2024
Project Manager, Gapsy Studio
Anonymous
Verified
Other industries
Ukraine
11-50 Employees
Online Review
Verified
Onix-Systems developed a website for a creative design agency. The team created a responsive site with a CMS, integrated custom animations, and optimized the site's performance to ensure fast loading times.
Onix-Systems delivered a website that significantly enhanced the client's online presence, leading to increased traffic and engagement. The site was praised for its ease of navigation and polished design. Onix-Systems adhered to timelines and kept the client informed with regular updates.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Project manager of Gapsy Studio
Describe what your company does in a single sentence.
Gapsy Studio is a creative design agency specializing in UI/UX design, branding, and digital product design, helping businesses create visually striking and user-focused digital experiences.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
We hired Onix-Systems to develop a modern, fully functional, and responsive website for Gapsy Studio. Our goal was to create a platform that effectively showcases our portfolio, highlights our services, and attracts potential clients with a seamless user experience. We wanted the site to reflect our creativity, professionalism, and attention to detail while ensuring optimal performance across devices.
SOLUTION
How did you find Onix-Systems?
Online Search
Referral
Why did you select Onix-Systems over others?
Close to my geographic location
Pricing fit our budget
Great culture fit
Good value for cost
How many teammates from Onix-Systems were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The scope of work included creating a high-performing website that showcases our portfolio and services. Key deliverables were:
A responsive, visually appealing website optimized for desktop and mobile users.
A dynamic portfolio section to highlight Gapsy Studio’s projects and case studies.
A content management system (CMS) for easy updates and maintenance.
Integration of custom animations and interactive elements for an engaging user experience.
Performance optimization to ensure fast loading times and smooth navigation.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The new website significantly enhanced Gapsy Studio’s online presence, leading to increased traffic and engagement. Prospective clients praised the site’s ease of navigation and polished design, while the portfolio section effectively showcased our expertise. The site’s responsiveness and fast performance directly contributed to higher user satisfaction.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Onix-Systems’s project management was exceptional. They adhered to the timeline and kept us informed with regular updates. Their responsiveness to feedback and ability to incorporate changes promptly ensured that the project ran smoothly and met all our expectations.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Onix-Systems’ technical expertise and commitment to delivering a high-quality product were truly impressive. Their ability to translate our creative vision into a functional and visually stunning website made them a standout partner.
Are there any areas for improvement or something Onix-Systems could have done differently?
While the experience was overwhelmingly positive, a more structured feedback process during the testing phase could have minimized revisions post-launch. Additionally, providing more detailed documentation for ongoing site management would have been helpful.
RATINGS
5.0
"Highly recommended"
Quality
5.0
Service & Deliverables
"I like it"
Schedule
5.0
On time / deadlines
"Good"
Cost
5.0
Value / within estimates
"Good enough"
Willing to Refer
5.0
NPS
VR Development for Creative Agency
AR/VR Development
Confidential
Sep. - Nov. 2024
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0
"Onix-Systems was able to touch on the essence of our question and interpret our needs well."
Nov 26, 2024
Owner, Director & Photographer, First on Mars
Herman Poppelaars
Verified
Other industries
Amsterdam, Netherlands
1-10 Employees
Phone Interview
Verified
Onix-Systems provided VR development services for a creative agency's end client's product presentation. The team was responsible for designing 60 seconds of 360-degree animations for a two-minute video.
Onix-Systems exceeded expectations by delivering a realistic and convincing VR experience that helped the end client tell the story of their product. The team understood the project requirements, was flexible in making adjustments, and maintained communication through Zoom, Google Meet, and email.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I’m the Owner, Director, and Photographer of First on Mars.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Onix-Systems?
We needed to develop a VR project for an end client specializing in air filtering systems. They required a product presentation for a launch that was yet to happen.
SOLUTION
What was the scope of their involvement?
Onix-Systems provided design and development services for a VR project. We had an initial meeting to discuss the project's outlines and expectations. We also sent them a reference film we found online, and they sent us some other reference material back.
Onix-Systems created a VR environment that allowed users to experience being inside a clean air filter system. The team produced 60 seconds of 360-degree animation for a two-minute video. The final product was used for one-on-one presentations with potential end customers at a trade fair.
What is the team composition?
Initially, we worked with just two people, but the team expanded to meet the deadline as the project progressed.
How did you come to work with Onix-Systems?
We were connected through another company that had previously worked with Onix-Systems. Then, we watched their showreel, and we really liked it.
What is the status of this engagement?
We worked together from September–November 2024.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Onix-Systems exceeded our expectations. The VR experience was so realistic that some users found it too convincing. The team did an excellent job, and their final product helped our salespeople tell the story about the product that was going to be brought to market.
How did Onix-Systems perform from a project management standpoint?
We communicated via Zoom, Google Meet, and email.
Are there any employees from the service provider's team that you would like to give a shout-out to in this review?
I would like to give a shout-out to Roman, the project manager, and Vasily, the developer.
What did you find most impressive about them?
Through their work, Onix-Systems was able to touch on the essence of our question and interpret our needs well. They were also very flexible and made the necessary adjustments, demonstrating a clear understanding of the project.
Are there any areas they could improve?
No, we were very happy with the results.
Do you have any advice for potential customers?
I advise having additional initial calls to clarify the project's outlines. In our case, this was Onix-Systems' first time, in many ways, working on such a project, and it was also our first collaboration with them. A few more calls at the start could have streamlined the process. Still, by the second time working together, understanding the collaboration became easier, and everything worked out for us in the end.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Web & Mobile App Dev for Event Marketing & Production Firm
Mobile App DevelopmentUX/UI DesignWeb Development
LaravelConsumer Mobile App DevelopmentAndroid App DevelopmentiPhone iOS App Development
$50,000 to $199,999
Feb. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"The level of communication felt as though they were an extension of our team."
Nov 19, 2024
CEO, Bar Crawl Nation LLC
Peter Altholz
Verified
Arts, entertainment & music
Boca Raton, Florida
1-10 Employees
Online Review
Verified
Onix-Systems provides website and mobile app development for iOS and Android for an event marketing and production firm. The team has fixed bugs, added new features, and improved the UI/UX design.
Onix-Systems has successfully reduced the number of issues in Crashlytics and improved the app's stability, earning positive feedback from end customers. The client's website has also ranked for specific keywords on Google. Moreover, the service provider has impressed the client with its resources.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Bar Crawl Nation LLC
Describe what your company does in a single sentence.
US-based, nationwide event marketing & production company specializing in bar crawls.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Onix-Systems to accomplish?
Take over existing iOS & Android app development: fix bugs, add new features, and UX/UI improvements
Take over existing website development and create new functionality & UX/UI improvements
SOLUTION
How did you find Onix-Systems?
Upwork
Why did you select Onix-Systems over others?
High ratings
Pricing fit our budget
Great culture fit
Good value for cost
Company values aligned
How many teammates from Onix-Systems were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Website development included taking over existing website and implementing new features (UX/UI + front end dev)
Add blog
Bring "Contact Us" and "FAQ" onto website (vs 3rd party)
Add new landing pages (directory & content)
Mobile app devlopment for iOS (Swift) and Android (Kotlin), including taking over existing apps and making improvements:
General bug fixing
New landing screens
UX/UI improvements
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
We were able to measue the success of our app development by assessing the reduction of issues in crashlytics as well as customer feedback regarding stability and value.
Progress with our website development allowed us to create new content and directories for that content which now rank on Google where previously we did not rank for certain keywords.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Onix assigned a project manager to our project that was very communicative. They made themseles available to participate in meetings on hours that worked in our time zone. I can trust that they are able to manage their team's resources to further our project.
What was your primary form of communication with Onix-Systems?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Onix has a large team that could be called upon to assist with any difficult tasks. The level of communication felt as though they were an extension of our team.
Are there any areas for improvement or something Onix-Systems could have done differently?
Sometimes it's hard to estimate how much time certain tasks might take ahead of time, but ultimately we went a little over time and budget on some tasks.
RATINGS
5.0
"Onix is the best development company we've ever worked with"
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"They are super communicative, meet all goals, and are reasonably priced. What else could you ask for?
Showing 1-10 of
56 Reviews
Our Story
Onix was founded in 2000 by three technology enthusiasts: Roman Serebryakov, Edward Prykhodkin, and Dmitry Durach.
Onix has always focused on building honest, transparent relationships with customers. We prioritize the evolving, unique customer nee
The executives’ goal is to secure Onix’s membership in the global business community and our status as a reliable and profitable partner. The executive team guides Onix with a focus on consistent excellent customer experience and continuous education.
What Sets Us Apart
Openness
Transparent, client-first partnership. We keep the process open, guard your IP, adapt to evolving needs, and work comfortably across time zones—so delivery stays clear, flexible, and aligned from discovery to release.
Support
Learning-led excellence since 2000. From 8 engineers to 370+ specialists, we’ve grown profitably and steadily. We invest in continuous education and emerging tech, so your product benefits from proven craft and fresh ideas.
Uniqueness
Values you can feel. We embrace new ideas, appreciate creativity, respect every voice, and support growth. That culture—plus global experience—creates teams that care, stay reliable, and build long-term results with you.
Verified means Clutch independently confirmed Onix-Systems is a legally registered business and backed by 49 verified client reviews averaging 4.8 stars.
Clutch was unable to obtain a credit report for this company. However, Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.
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