Fullstack Javascript Developer @ Exlabs
🚀 CTO & Co-founder at Techfinity Studio — AI-driven software studio 👨💻 Full-stack developer, technical leader For the past 11 years, I’ve been building modern software solutions — today as the CTO and co-founder of Techfinity Studio, where we help companies build smart, efficient, and secure digital products. We use the right mix of technologies — from custom software to AI-driven solutions and low-code platforms — to deliver real business value. 💡 Key areas of expertise: • TypeScript, React, Next.js, Node.js, NestJS • AI integration & AI-driven apps • Security-first architecture • Functional Programming I’m passionate about building great software and helping organizations navigate the rapidly evolving tech landscape. Outside of work, I enjoy ♟️ playing chess and exploring the intersection of technology and creativity. 🌍 I work in an international environment. Languages: 🇵🇱 Polish (native) 🇬🇧 English (fluent) 🇪🇸 Spanish (fluent) 🇵🇹 Portuguese (good) 🇧🇬 Bulgarian (communicative) 🤝 If you’d like to connect to discuss: • building modern digital products • applying AI where it makes sense • designing secure and scalable architecture • or simply exchange ideas on technology Feel free to reach out!
🚀 Advisory & Consulting - AI-driven software solutions - Software architecture & security-first design - Modern full-stack development (TypeScript, React, Next.js, Node.js, NestJS) - Functional Programming in business applications 🤖 AI Strategy & Integration - Identifying real-world use cases for AI in your business - Prototyping and building AI-powered products - Leveraging AI in combination with custom code and low-code platforms 💼 CTO-as-a-Service - Supporting startups and scale-ups with technical leadership - Helping founders make strategic technology choices - Building and scaling engineering teams 🎤 Speaking & Content Collaboration - Talks on AI in real-world software - Security-first mindset in modern development - Functional Programming, TypeScript ecosystem - Chess & tech — lessons from the board to software 🌍 Networking & Partnerships - Co-innovation projects - AI & tech partnerships - International collaborations (languages: Polish, English, Spanish, Portuguese, Bulgarian)
The longer I lead software projects, the more I see how critical it is to decide when you start thinking about security. Too often, teams adopt this approach:"Let’s build the system first, then we’ll see what needs to be secured."This mindset almost ...

As developers, we strive to deliver secure systems to our clients. However, with large applications and hundreds of potential vulnerabilities and attacks, performing manual security testing for each new release can be a daunting task. Fortunately, th...

UPDATE 2025:Updated the text to mention immutable methods introduced to Javascript. Over my 10 years of working as a software engineer, I've tried many different programming languages. In my professional career, I started with PHP, later switched to...
