Team Lead and Full-Stack Developer with nearly 20 years of experience and deep expertise across a broad range of technologies, with a strong focus on PHP, Python, and TypeScript, and hands-on experience with Salesforce technologies and .NET. He often leads project teams while remaining hands-on, contributing to system architecture, infrastructure setup, CI/CD pipelines, and onboarding new team members. Outside of work, he values calm, enjoys spending time with his family, and plays tennis.
Backend Developer and DevOps specialist with a multidisciplinary background and strong focus on building reliable backends using Python, TypeScript, and Go, with practical experience across a wide range of technologies. He often takes ownership of the technical execution of projects, designing and maintaining infrastructure, ensuring system stability, and keeping hosting costs under control. He is known for his methodical approach and for handling complex and critical situations. Outside of work, he enjoys hands-on hobbies such as home repairs and gardening.
Full-Stack Developer with a strong foundation across .NET, PHP and TypeScript, and a solid background in web application development. He is currently working on a mobile application project using React Native, combining frontend and backend skills to build real-world, user-facing solutions. Berat is highly motivated, focused on continuous learning, and brings a disciplined and hands-on approach to every project he works on.
Software Engineer with a strong foundation across frontend and backend development, with a particular focus on .NET-based systems alongside JavaScript/TypeScript, React, Next.js, Svelte, and Python-based backend services. He has experience building full-stack applications, working with APIs, databases, and containerized environments, and contributing to structured, maintainable codebases. Christopher combines strong analytical thinking with a creative mindset, and outside of work he enjoys painting and exploring visual arts, which naturally influence his interest in UI and UX design.
Full-Stack Developer with over 15 years of experience in the software industry. Originally a PHP backend developer, he has grown into a highly reliable senior full-stack professional, working in recent years mainly with Python and TypeScript, with strong experience in Salesforce development. He works as a senior developer and often as a team lead on large and challenging projects, including SaaS products and enterprise solutions with complex integrations. Outside of work, he is a long-time Linux enthusiast who has come to appreciate macOS, and enjoys mountains and snow - despite living by the sea with his family.
Security Consultant with over 20 years of experience and deep knowledge of networks, operating systems, and social engineering. He supports teams with security assessments, penetration testing, and practical guidance for building more secure systems, often creating his own custom tools for testing and analysis. A long-time vi user and Python enthusiast, he treats penetration testing as both a profession and a hobby - something he enjoys even in his free time. Outside of work, he is a passionate rock music fan and has successfully passed the "true faith" on to all three of his sons.
Machine Learning and AI Architect with over 25 years of experience designing advanced AI systems, custom machine learning architectures, and large-scale enterprise solutions. With a double major background in Mathematics and Physics, Georgi is known for his exceptional analytical depth and ability to solve highly complex problems from first principles. He specializes in building sophisticated data-driven platforms - including custom LLM frameworks, multi-agent systems, vector databases, and optimization engines - delivering scalable, production-ready solutions across healthcare, media, finance, and enterprise environments.
UX/UI and Web Designer with over 15 years of professional experience, working across web and mobile products for international clients. He is involved throughout the entire design process - from usability research and UX prototyping, through high-fidelity UI design, to front-end collaboration and quality assurance. Ivaylo has worked on both large-scale platforms and smaller focused tools, with a strong belief that well-researched and tested UX is the foundation of successful digital products. Outside of work, he enjoys photography and staying up to date with the latest design trends and usability research.
Full-Stack Developer with a strong focus on the TypeScript ecosystem, working extensively with modern frameworks such as React and Next.js, alongside backend technologies like Node.js, Python, and PHP. He has experience building end-to-end web applications, including scalable SaaS products, AI-powered tools, analytics dashboards, and secure authentication and payment flows. Krasimir is a highly collaborative team player with excellent communication skills, known for his structured approach and ability to work effectively across both technical and product-focused discussions.
Full-Stack Developer with strong experience across modern backend and frontend technologies, including Python, Go, TypeScript, and cloud-native architectures on AWS. He has solid experience in Salesforce development and is a core contributor to our first Salesforce AppExchange product, combining AI-driven workflows with Python and TypeScript. Mladen focuses on building scalable, high-performance, and cost-efficient systems, while continuously expanding his expertise in AI and machine learning. Outside of work, he is a devoted fan of Labradors and enjoys spending time with his young daughter.
Founder & Managing Director with over 25 years of experience in the software industry, combining a deep technical background with strong product and business thinking. An ex-developer himself, Milen now codes selectively - mainly to prototype ideas, validate concepts, or build internal and personal tools - while focusing day to day on architecture, strategy, and long-term client partnerships. He works closely with teams and clients to shape complex systems, plan scalable solutions, and de-risk ambitious projects early. Leveraging modern LLMs and AI-assisted workflows, Milen is able to rapidly turn abstract ideas into tangible prototypes, making new product concepts visible early and accelerating the launch of new initiatives across the company. Outside of work, he enjoys long walks with his dog, exploring Europe’s lesser-known places, and spending quality time with his family.
Co-Founder and Business Development Director, part of MTR Design since day one and one of the driving forces behind the company's creation. He is responsible for ensuring the business runs smoothly end to end - from operations, payroll, and compliance to defining growth strategies, new markets, projects, and partnerships. Outside of work, he is highly sports-oriented, enjoys fitness and tennis, and values calm environments and long, relaxing breaks.
Experienced and reliable Full-Stack Developer who naturally takes on team lead responsibilities. He has strong experience with PHP, Python, and TypeScript, along with deep, long-term expertise in the AWS ecosystem, and is responsible for the technical ownership of a project for one of MTR Design’s key clients. Outside of work, he has a strong sports background, having played football at a semi-professional level, and greatly values spending time with his family.
Highly versatile and exceptionally strong full-stack developer, who joined MTR Design early in his career and has since grown into one of the most senior and reliable members of the team. He adapts quickly to new projects, teams, and domains, working confidently across a wide range of technologies and infrastructures, including Python, PHP, TypeScript, Go, .NET, and platforms such as AWS, Azure, Vercel, and Cloudflare. Tsvetoslav combines strong engineering depth with curiosity and creativity, and has solid experience in AI-driven solutions and complex cloud architectures. Outside of work, music is his greatest passion - he plays multiple instruments, composes music, and sings in a punk band.
Senior Full-Stack Developer and Team Lead, and one of the longest-standing members of the MTR Design team, with nearly 20 years of experience working on complex and demanding projects. He has extensive experience building scalable backends, data-heavy systems, and integrations with multiple third-party platforms, working primarily with PHP and TypeScript, with experience in Go as well. In recent years, he has been applying his expertise to complex Salesforce projects, combining deep technical knowledge with a pragmatic, long-term mindset. Outside of work, he is a true DIY enthusiast and has personally contributed to building much of his family home.
