For over ten years Selleo has delivered professional services on more than 150+ software development projects for clients from Europe, the US, Canada, and Australia, designing and building a number of applications throughout a wide spectrum of business domains, industries, and technologies (React, Node, React Native, Python, Ruby on Rails, EmberJS, Elixir).
Extend your in-house team
Whenever you want to handle a new project, deliver essential features or need a staff with specialized skills or industry expertise, our full-stack developers help you to increase overall productivity. We work in collocated agile teams crafting web and mobile applications with an entrepreneurial sense of ownership.
Embrace tech stack complexity
Our expert developers have not only the current capabilities you need but also an ability to build new ones rapidly. With the vast diversity of skills required and partnership with other specialized companies, we can deliver even the most technologically challenging software solutions.
Industry Expertise
Through the years we have gathered a broad spectrum of specialization in the development of custom SaaS and cloud-based business process management tools, digital dashboards, LMS and e-learning services, AdTech and marketing platforms, data analytics and processing solutions. We enable clients to efficiently optimize and innovate processes, products, and business ventures by developing single page applications, designing microservices architecture and crafting web and mobile applications.
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Min project size
$10,000+
Hourly rate
$25 - $49 / hr
Employees
50 - 249
Locations
Bielsko-Biała, Poland
Year founded
Founded 2005
Languages
Timezones
1 Language that we service
English
1 Timezone that we service
CET
Central European Time (CET)
2 Locations
Bielsko-Biała , Poland
Bielsko-Biała , Poland
No have been added yet...
Pricing Snapshot
Min. project size
$10,000+
Avg. hourly rate
$25 - $49
/hr
Rating for cost
4.5
/5
What Clients Have Said
Selleo provides competitive pricing with good value for cost, as noted by clients. Project costs range from $20,000 to over $500,000, depending on scope and client size. Clients appreciate Selleo's quality, communication, and project management, often highlighting their ability to deliver on time and within budget.
Some clients suggest that Selleo could enhance their estimating procedures and deepen their understanding of certain business markets to better support client objectives and timelines.
Strong Project Management Skills
Many clients commend Selleo for their effective project management, timely deliveries, and clear communication. They employ agile methodologies and maintain regular updates through tools like Slack and Trello, ensuring alignment and responsiveness.
Commitment to Client Success
Selleo's team is praised for their dedication and proactive approach to understanding and meeting client needs. They are seen as invested partners, often going beyond scope to ensure project success and client satisfaction.
Proficiency in Custom Software Development
Selleo is recognized for its expertise in developing custom software solutions across various industries. Clients appreciate their ability to create tailored applications that address specific business challenges, ensuring scalability, security, and user-friendliness.
Focus on Long-term Partnerships
Selleo is noted for their focus on building long-term relationships with clients. Their approach to training and retaining in-house talent contributes to sustained quality and continuity in client engagements.
Responsive and Adaptive to Client Needs
Clients appreciate Selleo's responsiveness and adaptability, highlighting their ability to quickly adjust to changing requirements and challenges. This flexibility is seen as a key strength in their service delivery.
Digital Marketplace for Digital Recruitment Platform
Featured Review
Custom Software Development
$200,000 to $999,999
Apr. 2017 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Selleo has vast experience in building scalable, high-quality solutions for businesses in various industries."
Jan 29, 2021
CPO, Humly Edtech
Kristoffer Persson
Verified
Education
Goeteborg, Sweden
11-50 Employees
Online Review
Verified
Selleo provides ongoing development services for an educational tech company. The team was hired to create a digital marketplace for the client. Their goal is to build a world-class web and mobile experience.
The client couldn't be happier with the services that Selleo's provides. The team takes full ownership of their work and they continue to pursue the best tools available to maintain the platform's security and scalability. The communication is transparent throughout the development.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Humly is a digital recruitment platform dedicated to help schools finding substitute and long-term teachers. It connects qualified candidates with schools with free vacancies.
Thanks to our platform, educational institutions gain access to skilled teachers while graduates get the opportunity to gain working experience. I'm one of the founders of Humly and work as CPO.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo, and what were your goals?
We hired Selleo to develop our digital marketplace that connects schools with teachers. Our goals were to build a world-class web and mobile experience. The recruitment industry for schools are very traditional, so we wanted to digitally transform the way the industry works. We chose Selleo as our development partner in that journey.
SOLUTION
How did you select Selleo and what were the deciding factors?
We chose Selleo as our outsourcing partner because of their vast experience in building custom solutions as well as their work ethics. We were impressed by their professionalism, processes and communication skills.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
The project was focused on building a recruitment platform that will connect teachers looking for jobs with schools looking to fill mainly short term vacancies. Selleo team was responsible for creating the infrastructure and development of the application.
They used React, Ruby on Rails, React Native and Vue.js for this purpose. Apart from that, the application also uses MongoDB, AWS and Heroku for the infrastructure. From our side, we delivered a product manager and UI designer that closely collaborate with the development team.
How many people from the vendor's team worked with you, and what were their positions?
The Selleo team was responsible for the entire back-end and front-end development of both web and mobile application. Each member of the team is involved in the planning process of the new features and actively participates in brainstorming sessions. In total, the project has varied between five and eight developers.
From our side, we delivered a product manager and UI designer that closely collaborate with the development team.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
We could not be happier with the collaboration overall. They take full ownership of their work and always use the best tools available while maintaining high security and scalability. The communication with the team is transparent and the entire project is based on mutual trust and openness.
The collaboration with Selleo gives us the opportunity to be an agile company that quickly can adapt to new possibilities and test new ideas. When it comes to measurable outcomes: Humly have seen a 4x revenue growth since Selleo joined as our development partner. We are now the leading supply teacher provider in Sweden and are ready to grow to more markets.
Describe their project management style, including communication tools and timelines.
We meet every day for a standup. We work on a biweekly sprint basis, so every other week we plan together what to do next. Selleo has a tech lead that also works as a project manager, which we have found to be a very important and good role in a project like this. All planning and follow up of the progress is done with the tool Trello.
What did you find most impressive or unique about this company?
Selleo has vast experience in building scalable, high-quality solutions for businesses in various industries. Their process is Scrum-based, which ensures everybody remains up-to-date with the latest improvements. Their technical expertise keeps inspiring me, but, above all, they are simply great people to work with. I highly recommend Selleo as a development partner. We couldn’t be any happier.
Are there any areas for improvement or something they could have done differently?
I honestly don't think so. The delivery is of high quality and communication is very good. Of course, there are some bugs sometimes, but it's a complex project with many moving parts, and the team is always very quick to catch and adjust the bugs.
RATINGS
5.0
"We couldn't be more happy. We look forward to a long-lasting collaboration."
Quality
5.0
Service & Deliverables
"We couldn't be happier. The collaboration, quality and communication are all 5/5."
Schedule
5.0
On time / deadlines
"Never a problem! They are all very professional."
Cost
5.0
Value / within estimates
"Compared to employing developers in Sweden it's a bit cheaper, but we feel that we get a lot more value out of our investment."
Willing to Refer
5.0
NPS
"I have already referred Selleo to many other companies and friends.
Event Mgmt Platform's Web & Mobile App Dev for Software Co
"Overall, I highly value them as a long-term partner."
Feb 19, 2025
Manager, Articulate Entertainment
Anonymous
Verified
Arts, entertainment & music
Boston, Massachusetts
1-10 Employees
Online Review
Verified
Selleo has built a live event management platform for a software company. The team has designed and developed a web app and an iOS app to streamline event scheduling and artist and venue management.
Selleo has successfully delivered the MVP of the platform, leveraging scalable AWS infrastructure to ensure the platform can handle high traffic. Selleo has strong project management skills, communicates clearly, and is attentive and adaptive. Overall, their proactive approach has set them apart.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am a manager at Articulate Entertainment
Describe what your company does in a single sentence.
Project management software for live events.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
Create a web app
Create an iOS app
Create a mobile app
UX/UI Design
SOLUTION
How did you find Selleo?
Online Search
Why did you select Selleo over others?
High ratings
Company values aligned
Other
How many teammates from Selleo were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We hired Selleo to design and develop a live event management platform that would streamline event scheduling, artist and venue management, and provide tools for tracking and planning. The goal was to create a scalable, user-friendly system to serve event managers while ensuring great performance and reliability.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The project's success was bringing the MVP to life quickly, allowing users to test it early and provide valuable feedback. This input shaped our development efforts, ensuring ongoing improvements directly address real user needs. By leveraging a scalable AWS infrastructure, we ensured the platform could handle high traffic during peak event periods with reliability and performance. Since then, every enhancement has been guided by user insights, refining the product where it matters most and leading to a more successful, financially viable platform.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The team demonstrated strong project management skills, maintaining clear communication and adaptability. While not everything went according to schedule, they made meaningful efforts to compensate for delays. They were attentive to our needs, quickly adapting to challenges and finding solutions to keep the project moving forward. Overall, I highly value them as a long-term partner.
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Selleo is a home-grown operation. They train in-house, hire in-house, and are focused on developing long-term talent, as opposed to short term gains. They're proactive with their approach, dealt with scope creep efficiently and clearly, and were dynamic in adjusting to our increasing needs.
Are there any areas for improvement or something Selleo could have done differently?
My few wishes for their improvement would be more robust estimating procedures, and a greater understanding of the business market they are trying to support. To their credit, they are very focused on building an oustanding product.
RATINGS
4.5
Quality
4.5
Service & Deliverables
Schedule
4.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
4.5
NPS
Custom Software Development for Engineering Company
Custom Software DevelopmentIT Staff AugmentationWeb Development
Confidential
Jan. 2024 - Ongoing
5.0
Quality
5.0
Schedule
4.0
Cost
5.0
Willing to Refer
5.0
"They are responsive to our needs, making necessary adjustments promptly to accommodate changing requirements."
Sep 27, 2024
Senior Machine Learning Engineer, PhysicsX
Matthew Brennan
Verified
Other industries
City of London, England
51-200 Employees
Online Review
Verified
A software engineering company has hired Selleo to implement a web platform. The team has integrated navigation features, secure authorization protocols for user management, and dynamic tables.
Selleo has successfully delivered a fully functioning platform that has streamlined the client's operations and improved UX. The team has maintained effective communication through daily stand-up meetings. Their responsiveness and eagerness to collaborate with the client are impressive.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Senior Machine Learning Engineer of PhysicsX
Describe what your company does in a single sentence.
Engineering
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
I hired Selleo to implement a web platform. Specifically, we needed to implement several applications for our platform infrastructure, a key component of our solution, while ensuring seamless integration with their existing backend through API connections. Additionally, the platform required the incorporation of a design system created by their designers, ensuring a cohesive and intuitive user interface. One of the more technical aspects involved rendering 3D objects within the platform, providing a dynamic and interactive user experience.
SOLUTION
How did you find Selleo?
Online Search
Why did you select Selleo over others?
Understood a Niche assignment and I felt Comfortable they'd be able to deliver
How many teammates from Selleo 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 developing a comprehensive platform that involves multiple advanced features to meet our business goals. Key deliverables encompass the rendering of 3D objects and the creation of interactive tools for managing and viewing these objects using ThreeJS technology. We also needed to build custom plots using the D3 library. Additionally, the project includes the implementation of design elements provided by our team, ensuring a polished and intuitive user interface. The platform also integrates smooth navigation features, secure authorization protocols for user management, and dynamic tables to organize and display key data effectively.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The measurable outcomes from the project include the successful delivery of a fully functioning platform that provides significant value to our clients. The platforms have streamlined operations and improved user experience. After launching the first service, we quickly identified an increased demand for additional custom services, which highlighted the scalability and adaptability of the solution to meet evolving client needs.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Selleo delivered the work within a reasonable timeframe and maintained effective communication through daily standups, which ensured alignment and quick resolution of any issues. They are responsive to our needs, making necessary adjustments promptly to accommodate changing requirements.
What was your primary form of communication with Selleo?
Virtual Meeting
What did you find most impressive or unique about this company?
What impressed me most about Selleo was their openness to exploring new technologies. They were eager to work with us on implementing solutions in a technology that was unfamiliar to both parties, demonstrating flexibility and a strong commitment to continuous learning and adaptation.
Are there any areas for improvement or something Selleo could have done differently?
No
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Platform & AI Features Dev for Real Estate FinTech Company
AI DevelopmentCustom Software DevelopmentUX/UI Design
$50,000 to $199,999
Feb. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Selleo's communication skills, expertise, and excellent language proficiency ensure clear and effective interactions."
Aug 7, 2024
Co-Founder, Real Estate FinTech Company
M K
Verified
Real estate
United Arab Emirates
1-10 Employees
Online Review
Verified
Selleo has been hired by a real estate fintech company to develop a platform for property-related activities. The team integrates admin-verified listings, oversees agency operations, and implements AI features.
Selleo has successfully created a functional platform from scratch swiftly, showcasing efficiency and expertise. The team has demonstrated effective, well-organized management by meeting deadlines, holding daily meetings to ensure everything is meticulously crafted, and providing updates.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Co-Founder of a real estate fintech company
Describe what your company does in a single sentence.
Real Estate - Fintech Solutions
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
I hired Selleo to implement a real estate innovative platform. This platform supports residents with daily property-related activities and issues, such as searching for a perfect property, interior designing, or fixing (e.g. plumbing). Ultimately, the whole platform will be AI-based, streamlining the whole management process and every-day activities of tenants.
AI Innovative solutions
SOLUTION
How did you find Selleo?
Clutch Site
Why did you select Selleo over others?
High ratings
Great culture fit
Company values aligned
How many teammates from Selleo 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 includes:
Preparing the process for property creation and admin-verified listings
Overseeing agency operations within the system
Many other features that are AI intensive
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Selleo successfully created a functional platform from scratch in a relatively short period, showcasing their efficiency and expertise.
Regular meetings with designers played a crucial role in shaping the product, ensuring that every detail was meticulously crafted, while the development team effectively implemented those ideas.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Their project management was effective and well-organized.
We had daily meetings where they informed us about their progress and plans.
With the scope divided into phases, they managed to efficiently deliver the agreed-upon tasks aligned with my requirements.
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Selleo's communication skills, expertise, and excellent language proficiency ensure clear and effective interactions. The team's accessibility and efficient problem-solving approach further enhance the overall experience, making collaboration smooth and productive.
Are there any areas for improvement or something Selleo could have done differently?
So far the whole experience is excellent and very productive.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
App Development for Grey Market Detection Platform
A grey market detection platform has hired Selleo for application design and development. The team is implementing new features and modern designs; key technologies include React.js and TypeScript.
Selleo has launched the application, and the client has received positive external feedback. The team is organized in their approach and highly collaborative. The Selleo team is enjoyable to work with, and the client has been impressed with the team's ability to complete tasks quickly.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the VP Engineering of GreyScout
Describe what your company does in a single sentence.
GreyScout is the only end-to-end platform that lets you quickly detect, authenticate, and take enforcement action against grey market sellers.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
The main goal was to change the existing application into a completely new version. Due to the success of our MVP application, we asked Selleo to create a new architecture and UI/IX design to improve the user experience even more.
SOLUTION
How did you find Selleo?
Previous Engagement
Why did you select Selleo over others?
High ratings
Great culture fit
Good value for cost
How many teammates from Selleo were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The main scope of the project included creating a new app architecture. At first, we scheduled the implementation of new features according to our business requirements. Later, we asked for new modern designs, and at last to maintain the repository (code review). The technologies used were: React.js and TypeScript.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
At this moment, the application was released, and the first clients started using it. The overwhelming feedback from our first customers has been very positive. They emphasized the usability and clarity of the application.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
We met regularly with the Selleo team 3 times a week to discuss the app development process, but we also organized monthly meetings with our CTO to discuss accomplishments and schedule future tasks. All the communication was either on Slack or Google Meet. We scheduled the tasks in the Jira. Selleo was responsible for developing the frontend of the app using React.js and TypeScript and collaborating with our developers working on the backend in Elixir. All the designs were done in Figma.
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The Selleo team is a pleasure to work with. Without them, we would not have released the new version of our application. Our internal teams have been massively impressed by the speed they can complete their tasks in the UI which led to a very successful release.
Are there any areas for improvement or something Selleo could have done differently?
There is always areas for improvement in software development. What is critical for us is that Selleo proactively provides feedback and suggestions on areas they see for improvement.The Selleo team is also very adaptable to the changes we make internally in our internal teams for improvement.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Staff Aug, UI/UX Design & Dev Services for Learning Platform
"The team at Selleo cares about delivering good software, and it shows in all aspects of their work."
May 25, 2023
Director of Engineering, Qstream
Douglas Reynolds
Verified
Other industries
Burlington, Massachusetts
51-200 Employees
Online Review
Verified
Selleo provides staff augmentation services for a learning platform. Selleo's team supports the client with UI/UX accessibility improvements and custom development using React.js and RESTful API.
Selleo's work is excellent, and their code is reliable, maintainable, and well-tested. Selleo works well with the client's team members and identifies areas for improvement and innovation. The team works following Scrumban methodology, meeting deadlines, and communicating with the client via Slack.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Director of Engineering of Qstream
Describe what your company does in a single sentence.
Qstream is the leading enterprise microlearning and knowledge reinforcement solution that’s been proven by science and in practice time and time again to deliver the highest levels of knowledge retention, engagement, and efficiency along with analytics that provide precision insights and expose a real-time view of job performance readiness.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
We were looking for a trusted software partner with whom we could enhance the administration user experience of our Product.
After a few months, we extended Selleo’s involvement to User Experience across our entire solution.
SOLUTION
How did you find Selleo?
Other
Why did you select Selleo over others?
High ratings
Close to my geographic location
Pricing fit our budget
How many teammates from Selleo were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The Selleo team worked on the administration interface, the maintenance of the main application and the development of new features for both. Our application provides a unique microlearning experience, with the team involved in the user-experience of many of our most recent innovations. The team has also worked closely with our Product group on accessibility and ADA compliance aspects. The main technology behind the solutions is React.js with RESTful endpoints from our in-house back-end team.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The collaboration with Selleo has been excellent. Their code is reliable, maintainable and well-tested. They work well with the other members of our team, and continue to identify areas for improvement and innovation, approaches for the erosion of technical debt, and for the reduction and prevention of issues - which were tracked and measured.
The structure and processes within Selleo ensures the team remains expert in their field and abreast of best practices - and that they are willing and able to bring this to the table.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Despite the fact that we’re working in the team augmentation model, the team is a great fit for our management style and brings a lot to the table in terms of technical knowledge. The collaboration is based on Scrumban methodologies. Besides regular meetings, the team communicates via Slack. Estimates for work were agreed via pointing during work decomposition - and these had a high degree of accuracy.
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The team at Selleo cares about delivering good software, and it shows in all aspects of their work. They do not hesitate to table valid and insightful input and opinions, working collaboratively with all our teams to deliver great and effective solutions.
Are there any areas for improvement or something Selleo could have done differently?
Billing was initially a little abstruse - but this was adjusted to our needs. Technically the team were excellent.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
5.0
NPS
Learning Platform Dev for Educational Services Provider
Application TestingCustom Software DevelopmentUX/UI DesignWeb DesignWeb Development
Confidential
June 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"The team is extremely engaged and delivers a full picture of the project status, and this builds extraordinary trust."
Apr 14, 2023
CTO, Educational Services Provider
Rob Eifler
Verified
Education
Chicago, Illinois
11-50 Employees
Online Review
Verified
Selleo designed and developed a career learning platform for an educational services provider. The team integrated the new platform with the legacy platform.
Thanks to Selleo’s efforts, the app is performing under load, has a modern UI/UX, and has highly documented code. The team uses Scrum methodology to organize the project and communicate effectively. They are engaged, responsive, detail-oriented, and trustworthy.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CTO
Describe what your company does in a single sentence.
Educational services provider for K-12
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
Design and develop a new career learning platform from scratch
Integrate with legacy platform
SOLUTION
How did you find Selleo?
Clutch Site
Why did you select Selleo over others?
High ratings, Pricing fit our budget, Great culture fit, Good value for cost, Other
What was the size of Selleo’s team?
11-15
Describe the scope of work in detail. Please include a summary of key deliverables.
We worked with Selleo to bring to life a new career based learning platform which brought real-world experiences to K-12 students. It brings personalized career learning to students and a custom course management and authoring system. In addition, it offers both career guidance and college planning.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Delivering features on schedule
Scheduled Releases every 2 weeks
Constant Communication, Requirements gathering, Design, and Problem-Solving
Excellent customer feedback
Excellent app performance under load
Modern UI/UX through regular design meetings
Easy to read code, highly documented, and thoroughly QC'd code
Describe their project management. Did they deliver items on time? How did they respond to your needs?
We organize our work via Scrum ceremonies and therefore meeting cadence is provided in cycles. Between the meetings we communicate and exchange information via Slack and use Jira / Confluence to describe tasks, keep track of timelines, releases and the project road map. Releases were scheduled every two weeks, but hotfixes were done asap as needed without issue.
What was your primary form of communication with Selleo?
Virtual Meeting, Email or Messaging App
What did you find most impressive or unique about this company?
The team has provided a number of improvements over the past 6 months to help with communication and organization. Also the team is extremely engaged and delivers a full picture of the project status and this builds extraordinary trust between me and the team.
Are there any areas for improvement or something Selleo could have done differently?
I don't have any complaints
RATINGS
5.0
"Just a great experience so far. No language barriers, high quality code, great team, and top-tier deliverables."
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"I would recommend Selleo to any business like ours.
Development for Solution Provider Company
Web Development
$10,000 to $49,999
Oct. 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their technical skills and knowledge of new technologies are impressive."
Apr 13, 2021
CEO, Kubed AS
Genevieve Hart
Verified
Other industries
Oslo, Norway
1-10 Employees
Online Review
Verified
Selleo updates a software solution provider's web application. The team also created additional features to improve the client's management process.
Selleo develops a better and modernized system with new functionalities. They consistently provide updates on the project's progress through weekly meetings. Overall, the team is knowledgeable and responsive.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
CEO and founder at Kubed AS
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo, and what were your goals?
We decided to start the collaboration with Selleo because we needed an experienced team that would update our application as well as implement new features that will make our site application and management process easier.
SOLUTION
How did you select Selleo and what were the deciding factors?
We were looking for a software house from Europe that offers services in both Node.js and React.js. Smooth communication and bug-free software were some of the crucial requirements.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
The application aids in an online application process. After filling out the form, applicants are added to a system through which administrators can validate them and compare their skills with other registered applicants. At the end of the process, the applicant gets an e-mail with information on whether their application was accepted or denied.
How many people from the vendor's team worked with you, and what were their positions?
The team consisted of people specialising in both back-end and front-end development. Depending on the requirement, the team scaled between 1-3 developers. There was also a possibility to consult a design expert if any UX/UI improvements were introduced.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
A better working, modern system with new and updated functionalities.
Describe their project management style, including communication tools and timelines.
The team delivered frequent updates on the progress of work with weekly meetings. They have a lot of technical knowledge and most communication occurs via Slack, which is our preferred tool.
What did you find most impressive or unique about this company?
Their technical skills and knowledge of new technologies are impressive. They also know how to communicate well and respond to feedback.
Are there any areas for improvement or something they could have done differently?
When we first issued some updates, there were some minor bugs in the forms. However once we identified and clarified these, they were fixed and updated in a fast and efficient manner.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
UI/UX Design & Audit for Digital Ads Distributor
UX/UI Design
$10,000 to $49,999
May 2020 - Ongoing
4.5
Quality
4.5
Schedule
5.0
Cost
5.0
Willing to Refer
4.5
"I highly recommend them as a trustworthy software development partner."
Sep 8, 2020
CTO, Guidle AG
Drazen Nikolic
Verified
Advertising & marketing
Baar, Switzerland
11-50 Employees
Online Review
Verified
A digital ads distributor hired Selleo to assist in UI/UX design, auditing, and project implementation.
The company appreciated that the team didn't just provide an overview of the aspects that need improvement, they also provided solutions. The project management was good as they held regular meetings to ensure everyone is on the same page. The team was consistent in delivering high quality work.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Guidle is a company in Switzerland with its main business in distributing digital ads. I'm in a CTO position and responsible for evaluating and selecting IT development partners, to be the extend of the internal development team.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo, and what were your goals?
We are in a process of modernizing web UI/UX for the forms our customers use to capture and maintain digital ads.
We've hired Selleo to support us in design, UI/UX auditing and the implementation of the web project using Vue.js.
SOLUTION
How did you select Selleo and what were the deciding factors?
We've searched for outsourcing and consulting companies within Europe, with the proven experience in design and web development.
Selleo was one of the few short listed companies we've negotiated. The main deciding factor was the showed experience with the Vue.js application development.
Additionally, we were also satisfied to get design, UI/UX consulting and testing, too.
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
After a couple of the meetings on a management level, we've decided about the team we started to work with.
We've worked closely together. The responsibility of Selleo's team was to implement the Ads wizard form using the Vue.js technology.
How many people from the vendor's team worked with you, and what were their positions?
In the development team we have worked with one designer and two web developers.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
Selleo has provided excellent development services to us. Their design team focused on UX audit of our existing system.
They did not only provide a thorough overview of the areas for improvement but they also gave the right solutions alongside with designs for new features and style guides.
The core task was Vue.js development of the website offer form, a crucial feature for business development.
Describe their project management style, including communication tools and timelines.
We had a regular meetings with few people from the management team, to align the expectations and monitor progress.
What did you find most impressive or unique about this company?
The quality of the work was definitely great as they were always eager to and successful in finding solutions to challenges that arise.
All in all, the Selleo team has been a core part of our team and has consistently brought top-notch design and architecture to our project.
I highly recommend them as a trustworthy software development partner.
Are there any areas for improvement or something they could have done differently?
Any found bug or issue was constructively approached and quickly handled.
RATINGS
4.5
Quality
4.5
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
4.5
NPS
App Dev for Community & Social Organization
Web Development
$50,000 to $199,999
Jan. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They have strong leadership, offer a good value, and they're flexible."
Apr 29, 2020
CEO, Better Off Social
Chris Mitchell
Verified
Arts, entertainment & music
New York City, New York
1-10 Employees
Online Review
Verified
Selleo developed a web app; they set up the architecture and created the solution, which involved DevOps.
The client is exceptionally pleased, as Selleo's reliable, flexible approach differentiates them from other partners. Rather than producing a generic project plan, they crafted one that fit the client's unique needs. The team maintained regular communication with internal stakeholders.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
We run large sports leagues, community events, brunches, and more in cities all throughout the United States. I'm the CEO.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo?
We initially contracted with a terrible company that tried to massively overbill us and did next to no work - they were completely incompetent. Selleo came in and rescued the project and saved the day. Then, when the pandemic hit, they helped us pivot and worked with us. We're now in good shape when it seemed like we would never finish the project before.
What were your goals for this project?
Create a complex rails app that would allow us to run our businesses as scale.
SOLUTION
How did you select this vendor?
We interviewed all the top Polish and Ukrainian Rails developer firms. Selleo treated us like an intelligent partner rather than trying to sell us with telling us everything we wanted to hear or making vague promises. They brought in the lead dev the first meeting and we met with them numerous times before starting the project. The dev gave us a great plan rather than a cookie cutter one. We decided to go with Selleo.
Describe the project and the services they provided in detail.
They planned, setup architecture, and developed the site - as well as doing dev ops. In short, they did everything we needed to get the app/website up and running and launched.
What was the team composition?
Lead dev, three other rails devs and a designer/frontend dev
RESULTS & FEEDBACK
Can you share any information that demonstrates the impact that this project has had on your business?
Still ongoing, but the difference between them and the previous teams we've worked with have been night and day.
How was project management arranged and how effective was it?
Project was managed by lead dev - we met once a week but the lead dev and I would chat throughout week via slack and sometimes would do one meeting a day. We used pivotal tracker to track progress.
What did you find most impressive about this company?
They have strong leadership, offer a good value, and they're flexible.
Are there any areas for improvement?
None for now
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Showing 1-10 of
35 Reviews
Our Story
We are Selleo - a community of self-driven digital experts crafting secure, scalable software across SaaS, EdTech, HRM, fintech, healthcare and e‑commerce. Our team blends Ruby on Rails, React/React Native, Node, Python and mobile expertise with Management 3.0 principles: ownership, proactiveness, respect and teamwork.
Since our Rails origins we’ve grown into a 100+ strong, community‑engaged firm with ISO certifications and award‑winning culture, delivering dozens of successful projects.
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