AngryLynx DOO is a Serbia-based software engineering company founded in 2020 by an active mathematical researcher and hardware engineer.Â
We take full responsibility for modernizing legacy systems and executing complex data migrations. Our work focuses on consolidating fragmented architectures — unifying heterogeneous schemas, aligning business logic, and transforming disconnected systems into a single, coherent platform.
We migrate on-premise systems to cloud environments and rebuild core components where needed, ensuring stability, scalability, and a clean foundation for future development, including analytics and AI.
 We also act as a delivery partner to other IT service providers, taking full ownership of both system refactoring and the complete migration process—delivering end-to-end solutions.Â
We are accountable for execution, system reliability, and final outcomes.
🚀 Products/ Services:
Legacy system modernization & data migration trough:
Unification of business logic across systems
Migration and consolidation of data
On-premise to cloud system migration (AWS, Azure)
Integration with external APIs and services, including AI/ML services
Backend system development
Full ownership of features and system-level delivery
👉 Who we help:
Legacy business owners - typically from banking, manufacturing, logistics, retail or healthcare - stuck with monolithic systems, or industries like digital marketing that track massive data from multiple sources (CRM, ads, analytics, social media) and need consolidated data and a unified AI-readyinfrastructure.
🛠️ Production capacities:
Team of 15+ engineers&mathematicians across multiple seniority levels, including:
Cloud Engineers (AWS, Azure)
Backend Developers
Data and Database Engineers
Software Architects
AI/ML Engineers
Mathematicians and Researchers focused on analytical and optimization models
AngryLynx doo Novi Sad is noted for good value for cost, with pricing fitting clients' budgets. Project costs are often confidential, but they consistently deliver on time and provide quality service across various project sizes, emphasizing effective communication and expertise.
The company's strong foundation in math and algorithms is frequently highlighted. This expertise aids clients in data extraction and visualization, enhancing the effectiveness of projects, particularly in tech-driven sectors.
No Reported Improvement Areas
Across multiple reviews, no clients mentioned areas for improvement or dissatisfaction with AngryLynx's services, indicating a high level of client satisfaction and consistent performance.
Proficient in Full Stack Development
AngryLynx doo Novi Sad excels in full stack development, utilizing Python, React, and PostgreSQL. Clients noted substantial progress in development and data migration projects, highlighting the team's skill and thoroughness.
Consulting and Educational Services
AngryLynx provides valuable consulting and educational services, particularly in applied mathematics and programming. Clients benefited from improved skills and successful project completions, underlining the team's expertise.
Expertise in Data Analysis and Automation
The team is adept at organizing and automating data processes. Clients noted the successful implementation of systems that reduced manual efforts and improved decision-making through actionable insights and automation.
Custom Software Dev for Advertising & Marketing Company
Featured Review
Custom Software Development
Confidential
Feb. 2026 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"AngryLynx doo Novi Sad is professional, thorough, and talented."
Jun 1, 2026
CTO, NextNext
Anonymous
Verified
Advertising & marketing
St. Petersburg, Florida
51-200 Employees
Online Review
Verified
AngryLynx doo Novi Sad provides full stack development and data migration services for an advertising and marketing company. The team works with Python, React, and PostgreSQL.
The client has seen substantial progress in their development roadmap and migration work, thanks to AngryLynx doo Novi Sad. The team is professional, thorough, and talented. They communicate well through virtual meetings, emails, and messaging apps.
BACKGROUND
Introduce your business and what you do there.
We help brands grow their organic digital presence by combining AI-driven strategies with personalized expertise to boost visibility, build trust, and connect with target audiences for lasting impact.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire AngryLynx doo Novi Sad to accomplish for NextNext?
We hired AngryLynx doo Novi Sad for full stack development and large-scale data migration.
SOLUTION
Can you describe the scope of work AngryLynx doo Novi Sad handled for this project?
AngryLynx doo Novi Sad has provided us with Python, React, and PostgreSQL full stack development and data migration.
What is the team composition?
We work with 2–5 teammates from AngryLynx doo Novi Sad.
How did you come to work with AngryLynx doo Novi Sad?
We found them through an online search. We chose them because of their high ratings and good value for cost.
How much have you invested with them?
The project cost is confidential.
What is the status of this engagement?
We started working together in February 2026, and the project is ongoing.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
We’ve seen substantial movement in our development roadmap and migration work.
How did AngryLynx doo Novi Sad perform from a project management standpoint?
We communicate through virtual meetings, emails, and messaging apps.
What did you find most impressive about them?
AngryLynx doo Novi Sad is professional, thorough, and talented.
Are there any areas they could improve?
No
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
Data Analysis Tool Dev & Design for Supermarket Brand
BI & Big Data Consulting & SICustom Software DevelopmentUX/UI Design
Confidential
Oct. 2024 - Jan. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They consistently delivered everything on time, which made the entire process smooth and stress-free."
Jan 17, 2025
CEO, Cash&Carry Plus DOO Kula
Branko Seratlic
Verified
Retail
Serbia
51-200 Employees
Online Review
Verified
ANGRYLYNX provided data analysis and automation services for a supermarket brand. The team organized and integrated data, implemented an automation system, and developed and designed a software tool.
The client was delighted with ANGRYLYNX's work. The team included an automated system that met the client's data analysis requirements and a user-friendly tool that enabled non-technical staff to make timely decisions. The team was professional, attentive, and professional throughout the engagement.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Cash&Carry Plus DOO Kula
Describe what your company does in a single sentence.
We are a supermarket brand operating in Serbia.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire ANGRYLYNX to accomplish?
We operate in retail, managing large supermarkets, and needed an experienced team to help us organize and utilize our data. Our main objective was to better understand market trends and improve our sales strategy with more automated and efficient processes compared to our previous methods.
SOLUTION
How did you find ANGRYLYNX?
Referral
Why did you select ANGRYLYNX over others?
Pricing fit our budget
Referred to me
Company values aligned
How many teammates from ANGRYLYNX were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
AngryLynx's work was structured in three main phases:
Data Organization and Analysis: They systematized our data, integrating information from various sources like sales reports, inventory logs, and financial summaries. Through several meetings, they presented data-driven insights, helping us refine our business strategy.
Automation System Implementation: AngryLynx implemented a system that automates the collection, organization, and analysis of sales and financial data. This system significantly reduced the manual effort required from our staff and ensured timely, accurate reporting.
User-Friendly Software Tool: They developed a simple, intuitive software tool that allows our non-technical staff to upload data and instantly receive the required insights, such as sales trends, inventory updates, and profitability reports.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Clear, actionable reports answering all our key questions.
Data-driven presentations that supported strategic decision-making.
An automated system that meets our ongoing data analysis requirements.
A user-friendly tool enabling non-technical staff to efficiently interact with the system and make timely decisions.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
They consistently delivered everything on time, which made the entire process smooth and stress-free. Communication was exceptional—they were always available to clarify any doubts and provide assistance whenever needed. Their professionalism and thorough attention to detail truly set them apart. Highly recommended for anyone looking for reliable and high-quality service!
What was your primary form of communication with ANGRYLYNX?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
AngryLynx’s communication skills really stood out! Despite our management team’s limited technical knowledge, they clearly explained their conclusions in a way that was easy for us to understand. Our staff also found their tools very intuitive and simple to use.
Are there any areas for improvement or something ANGRYLYNX could have done differently?
Not at the moment. This was our first collaboration, and we are pleased with the results. We plan to continue working with AngryLynx as our technical support and partners for future projects.
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
Consulting & Corporate Training for Software Co
AI ConsultingBI & Big Data Consulting & SICorporate Training & Coaching
Confidential
Feb. 2023 - May 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They provided PhD-level math educators with a deep understanding of mathematical concepts."
Sep 10, 2024
Software Engineer, Software Co
Branislav Martinovic
Verified
Other industries
Novi Sad, Serbia
11-50 Employees
Online Review
Verified
ANGRYLYNX provided consulting services for a software company. The team also assisted in organizing and implementing projects and provided educational courses in fundamental and applied mathematics.
ANGRYLYNX's work led the client to achieve one math certificate. The team delivered items on time and responded to the client's needs via in-person and virtual meetings. The team's deep understanding of fundamental math concepts and highly skilled approach to transferring knowledge stood out.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Software Engineer of a software company.
Describe what your company does in a single sentence.
Providing software solutions to organizations.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire ANGRYLYNX to accomplish?
To receive education and consultation in applied mathematics and programming essential for my further career development.
To obtain consulting support to successfully complete projects in the fields of process automation and system modeling.
SOLUTION
How did you find ANGRYLYNX?
Referral
Why did you select ANGRYLYNX over others?
High ratings
Good value for cost
Referred to me
How many teammates from ANGRYLYNX were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
AngryLynx was hired to provide professional consulting, education, and assistance in the organization and implementation of ongoing projects. They delivered in-depth educational courses in fundamental and applied mathematics, emphasizing its practical applications in the industry.
Additionally, they participated in multiple project designs, providing guidelines and support throughout the implementation process.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Measurable outcomes were:
Skill Proficiency Improvement: Achieved 1 math certificate.
Improvement of Project Completion Rates: Successfully completed 3 projects related to process automation, system modeling, data processing and optimization, while actively applying learned skills in ongoing projects.
What was your primary form of communication with ANGRYLYNX?
In-Person Meeting
Virtual Meeting
What did you find most impressive or unique about this company?
Their deep understanding of fundamental math concepts and their highly skilled approach to transferring knowledge, with a strong focus on applying these concepts to today’s demanded fields such as data analysis and machine learning.
They provided PhD-level math educators with a deep understanding of mathematical concepts. They are actively involved in mathematical research.
Are there any areas for improvement or something ANGRYLYNX could have done differently?
Not from my perspective
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
Dashboard Development for IoT Startup Company
Custom Software DevelopmentMobile App DevelopmentWeb Development
Less than $10,000
January 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They successfully implemented the system, integrated it with our backend, and proposed excellent solutions."
Dec 18, 2023
CEO, IoTartic
Zoran Zivkovic
Verified
Information technology
Novi Sad, Serbia
1-10 Employees
Online Review
Verified
An IoT startup company hired ANGRYLYNX to develop a dashboard for their product. The team implemented the system, integrated it with the backend, and implemented an authentication and authorization system.
ANGRYLYNX successfully completed the deliverables on time, proposed excellent solutions, and communicated extensively. The team's impressive expertise in math and algorithms was crucial to the project as it has helped the client extract and visualize critical data.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of IoTartic
Describe what your company does in a single sentence.
IOT Startup
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire ANGRYLYNX to accomplish?
Making dashboard for our IOT product
SOLUTION
How did you find ANGRYLYNX?
Referral
Clutch Site
Why did you select ANGRYLYNX over others?
Close to my geographic location
Pricing fit our budget
Good value for cost
Company values aligned
How many teammates from ANGRYLYNX were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Our engineer met with them to discuss the requirements, our database design, and the goals we aimed to achieve with this implementation. They successfully implemented the system, integrated it with our backend, and proposed excellent solutions to achieve real-time data visualization, which was a crucial aspect of our project. Additionally, they implemented an authentication and authorization system."
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
I cannot share any further details, since this is part of a larger startup project that is still in progress.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Great communication with their Project Manager. All things are deliverable on time and very successful.
What was your primary form of communication with ANGRYLYNX?
In-Person Meeting
Virtual Meeting
What did you find most impressive or unique about this company?
Their engineer had really strong background in math and algorithms that helped us in extracting and visualizing the most important data. This further assisted us in focusing on the most critical data and changes in the data we were tracking with the application.
Are there any areas for improvement or something ANGRYLYNX could have done differently?
Everything was according to our requirements. We are planning a general improvement and upgrade of the application, where I believe we will once again find a quality solution.
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 1-4 of
4 Reviews
Our Story
Our mission is to help companies make confident decisions by turning complex data and manual operations into clear, reliable systems. We value rigor, transparency, and long-term thinking. Our team consists of active mathematics researchers, engineers, and managers united by one goal: building AI, data platforms, and custom software that support sustainable business growth.
Meet the Team
Marina MijatovićCEO
As the founder of AngryLynx, Marina leads teams that help organizations transform data into actionable intelligence, automate operations, and build custom software for long-term, sustainable growth, backed by 8 years of industry experience.
What Sets Us Apart
Active Applied Math Research
We are currently the only Serbian IT agency whose co-founders are an active mathematics researcher and a hardware engineer.
Winners of the Transformator program
Winners of the Transformator program in Serbia for the best AI-powered solution concept for integrating ESG and SDG standards into clients’ workflows.
Long history of organizing educational courses
Including mathematics, electrical engineering, system modeling, and automation—with several thousand attendees and dozens of instructors ranging from students and industry experts, to university professors.
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