Available to hire
I’m Jonathan Lauwers, a freelance Frontend Developer from Hasselt, Belgium. I specialize in building scalable, high-performance web apps for international clients using React, Next.js and headless CMSs like Contentful and AEM. With 5+ years of frontend experience, I focus on delivering solid component libraries, CMS integrations, authentication, forms/validation, and performance optimization to help startups move faster.
I love collaborating with teams and freelancers to deliver maintainable code, great UX, and robust architectures. When I’m not coding, I stay on top of frontend trends, document solutions, and mentor others to level up their skills.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
Dutch
Fluent
English
Fluent
French
Intermediate
German
Beginner
Work Experience
Frontend Developer at Freelance
January 1, 2019 - PresentFreelance frontend developer delivering React-based frontend solutions for international clients. I design scalable frontend architectures, optimize performance, and ensure maintainable code using modern tools like Gatsby, Contentful and CI/CD workflows.
Frontend Developer at Krefel
January 1, 2024 - December 31, 2025Refactoring of API layer, SEO & i18n optimizations, introduction of Next.js App Router, and migration to a fully type-safe codebase.
Lead Frontend Developer at Strau Mann
January 1, 2024 - December 31, 2024Lead frontend developer in recreating a multi-brand, multilingual website using Next.js, increasing maintainability and scalability.
Frontend Developer at Boss Pains
January 1, 2023 - December 31, 2023Built a multi-brand e-commerce platform in Next.js, improving shopping experience and content updates.
Frontend Developer at Atlas Copco
January 1, 2022 - December 31, 2023Developed a portal application in Next.js for managing machine orders and services, enhancing customer self-service capabilities.
Frontend Developer at Krëfel
January 1, 2021 - December 31, 2022Migrated legacy React web shop to Next.js + Contentful, improving performance and modernizing the user experience.
Frontend Developer at Bank Degro of Petercam
January 1, 2020 - December 31, 2021Delivered a corporate site, blog and private tool in Gatsby, Contentful and GraphQL.
Frontend Developer at Beamery, DPAM, Two Point O
January 1, 2019 - December 31, 2020Optimized and rebuilt websites, focusing on scalability, UX and performance.
Full-Stack Developer Intern at Oty s
January 1, 2019 - December 31, 2019Gained hands-on experience in full-stack development with focus on frontend best practices.
Lead Frontend Engineer at Straumann
January 1, 2024 - PresentLead frontend development for a multi-brand, multi-lingual health care platform rebuild in Next.js (App Router). Architected a component library and CMS-driven pages (AEM Headless) for scalable global rollout. Improved maintainability and scalability; reduced custom development overhead for future brands.
Frontend Developer at Boss Paints
January 1, 2023 - January 1, 2023Built a multi-brand e-commerce platform in Next.js. Integrated Contentful for CMS, enhanced UX and SEO, and streamlined product content workflows.
Frontend Developer at Beamery, DPA M, Two Point O
January 1, 2019 - December 31, 2020Optimized and rebuilt websites, focusing on scalability, UX and performance.
Full-Stack Developer Intern at Otis
January 1, 2019 - January 1, 2019Internship focusing on frontend and backend collaboration, software development practices, and learning modern web stacks.
Frontend Developer at Freelance / Self-employed
January 1, 2019 - PresentFreelance frontend development for international clients using React/Next.js; built scalable frontend applications, component libraries, CMS integrations, authentication, forms/validation, and performance optimization.
Frontend Developer (Contract) at Freelance / Self-employed
January 1, 2024 - December 31, 2026Contract work (2024-2026) delivering frontend platforms and MVPs for early-stage startups using React/Next.js; included component library design, CMS integrations, authentication, forms/validation, and performance optimization.
Lead Frontend Developer at Straumann
January 1, 2024 - PresentLead FE for multi-brand, multilingual health care platform rebuilt in Next.js (App Router). Architected component library + CMS-driven pages (AEM Headless) for scalable global rollout. Improved maintainability and scalability; reduced custom development overhead for future brands.
Frontend Developer at Bank Degroof Petercam
January 1, 2020 - December 31, 2021Delivered corporate site, blog and private tools in Gatsby using Contentful and GraphQL.
Frontend Developer at Two Point O
January 1, 2019 - December 31, 2020Built a multi-brand e-commerce platform; integrated Contentful for marketing + product content management. Contributed to multiple client projects focusing on React, Gatsby and Contentful; improved UX and performance.
Full-Stack Developer Intern at OTYS
January 1, 2019 - December 31, 2019Full-stack internship in Prague, Czech Republic; contributed to frontend and backend tasks as part of a payroll internship.
Education
Bachelor of Information Technology at PXL Hasselt
September 1, 2016 - January 1, 2020Qualifications
Industry Experience
Software & Internet, Professional Services, Healthcare
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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