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Hi, I'm Mateusz Kaczmarek, a senior Software Engineer with 5 years of experience building scalable and secure full-stack solutions. I enjoy leading teams and delivering projects from concept to deployment, focusing on clean and maintainable code. My passion lies in staying up-to-date with the latest tech trends and continuously improving the performance and security of complex applications. I have a diverse skill set ranging from AI and chatbot development to mobile and web technologies. Whether collaborating with UI/UX teams or mentoring developers, I thrive in dynamic environments where innovative solutions are valued. I look forward to contributing my expertise to exciting projects and teams.…Hi, I'm Mateusz Kaczmarek, a senior Software Engineer with 5 years of experience building scalable and secure full-stack solutions. I enjoy leading teams and delivering projects from concept to deployment, focusing on clean and maintainable code. My passion lies in staying up-to-date with the latest tech trends and continuously improving the performance and security of complex applications. I have a diverse skill set ranging from AI and chatbot development to mobile and web technologies. Whether collaborating with UI/UX teams or mentoring developers, I thrive in dynamic environments where innovative solutions are valued. I look forward to contributing my expertise to exciting projects and teams.

Mateusz Kaczmarek

Full Stack Developer, Developer, AI Engineer, +2

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Hi, I'm Mateusz Kaczmarek, a senior Software Engineer with 5 years of experience building scalable and secure full-stack solutions. I enjoy leading teams and delivering projects from concept to deployment, focusing on clean and maintainable code. My passion lies in staying up-to-date with the latest tech trends and continuously improving the performance and security of complex applications. I have a diverse skill set ranging from AI and chatbot development to mobile and web technologies. Whether collaborating with UI/UX teams or mentoring developers, I thrive in dynamic environments where innovative solutions are valued. I look forward to contributing my expertise to exciting projects and teams.…Hi, I'm Mateusz Kaczmarek, a senior Software Engineer with 5 years of experience building scalable and secure full-stack solutions. I enjoy leading teams and delivering projects from concept to deployment, focusing on clean and maintainable code. My passion lies in staying up-to-date with the latest tech trends and continuously improving the performance and security of complex applications. I have a diverse skill set ranging from AI and chatbot development to mobile and web technologies. Whether collaborating with UI/UX teams or mentoring developers, I thrive in dynamic environments where innovative solutions are valued. I look forward to contributing my expertise to exciting projects and teams.

Available to hire

Hi, I’m Mateusz Kaczmarek, a senior Software Engineer with 5 years of experience building scalable and secure full-stack solutions. I enjoy leading teams and delivering projects from concept to deployment, focusing on clean and maintainable code. My passion lies in staying up-to-date with the latest tech trends and continuously improving the performance and security of complex applications.

I have a diverse skill set ranging from AI and chatbot development to mobile and web technologies. Whether collaborating with UI/UX teams or mentoring developers, I thrive in dynamic environments where innovative solutions are valued. I look forward to contributing my expertise to exciting projects and teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Polish

Fluent

English

Advanced

Work Experience

Senior Software Engineer at Prolab Research Consultants

February 1, 2024 - May 31, 2025

Created and maintained a secure and efficient full-stack software application that improved client satisfaction by 30% within the first year. Collaborated closely with the UI/UX team to design intuitive interfaces, reducing user-reported issues by 25% and enhancing the overall user experience by 20%. Conducted bi-weekly code reviews to boost code quality and adherence to best practices by 15%. Continuously stayed updated on latest full-stack development technologies to innovate solutions for clients.

Full Stack Developer at Ambaum

October 1, 2022 - January 31, 2024

Managed design and maintenance of more than 4 ecommerce websites while driving strategic revenue growth. Integrated AI-driven chatbot solutions leading to a 25% increase in sales conversions and improved customer service response times by 20%, enhancing customer satisfaction. Led a team of over 10 members handling website creation, management, and customer interaction strategies.

Frontend Developer at Telmie

December 1, 2021 - October 31, 2022

Designed and developed responsive user interfaces using HTML, CSS, and JavaScript, resulting in a 20% increase in user engagement and 15% rise in retention. Implemented front-end components that reduced page load times by 50%, decreasing drop-off rates and fostering a more engaging experience. Optimized performance, decreasing page load times by 40% across devices. Collaborated with backend developers and designers to improve website functionality and UI.