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Experienced Fullstack Developer and technical leader with over 15 years of experience in designing and implementing complex web applications in .NET and JavaScript (React/Next.js) environments. Specializes in system architecture, deployment automation (AWS, Kubernetes), integration with CMS and e-commerce platforms. Extensive experience working with clients in the luxury, scientific, and educational industries. An effective leader of development teams, with experience in technical supervision, mentoring, and collaboration with designers and business stakeholders.…Experienced Fullstack Developer and technical leader with over 15 years of experience in designing and implementing complex web applications in .NET and JavaScript (React/Next.js) environments. Specializes in system architecture, deployment automation (AWS, Kubernetes), integration with CMS and e-commerce platforms. Extensive experience working with clients in the luxury, scientific, and educational industries. An effective leader of development teams, with experience in technical supervision, mentoring, and collaboration with designers and business stakeholders.

Jakub Leszczyński

Front-End Developer, Full Stack Developer, Web Developer, +3

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Experienced Fullstack Developer and technical leader with over 15 years of experience in designing and implementing complex web applications in .NET and JavaScript (React/Next.js) environments. Specializes in system architecture, deployment automation (AWS, Kubernetes), integration with CMS and e-commerce platforms. Extensive experience working with clients in the luxury, scientific, and educational industries. An effective leader of development teams, with experience in technical supervision, mentoring, and collaboration with designers and business stakeholders.…Experienced Fullstack Developer and technical leader with over 15 years of experience in designing and implementing complex web applications in .NET and JavaScript (React/Next.js) environments. Specializes in system architecture, deployment automation (AWS, Kubernetes), integration with CMS and e-commerce platforms. Extensive experience working with clients in the luxury, scientific, and educational industries. An effective leader of development teams, with experience in technical supervision, mentoring, and collaboration with designers and business stakeholders.

Available to hire

Experienced Fullstack Developer and technical leader with over 15 years of experience in
designing and implementing complex web applications in .NET and JavaScript (React/Next.js)
environments. Specializes in system architecture, deployment automation (AWS, Kubernetes),
integration with CMS and e-commerce platforms. Extensive experience working with clients in
the luxury, scientific, and educational industries. An effective leader of development teams,
with experience in technical supervision, mentoring, and collaboration with designers and
business stakeholders.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Polish

Fluent

English

Advanced

German

Intermediate

French

Intermediate

Work Experience

Frontend Development Lead at Antaes AG / Antaes AG (part-time/side-project)

January 1, 2023 - Present

Architected and built the automated website generation frontend system using React/Next.js/TypeScript; led a team of developers; implemented component-based CMS-driven frontend; delivered 12 websites on a common platform; reduced deployment time to ~4 weeks; coordinated with Product Owner and UI Designer.

Full Stack Developer at Leman Digital (independent)

August 1, 2008 - December 31, 2022

Development and maintenance of e-commerce platform, RESTful APIs, and AI-powered applications; built with React.js/Next.js, AWS Lambda, MongoDB; led UI/UX components, delivered over 12 websites and headless CMS-powered systems.