Hi, I'm John.
I'm a developer, tech lead, indie hacker, and open-source contributor.
Over the past 8 years, I've built and shipped products at startups, scale-ups, and tech giants like Vercel, Notion, and Shopify.
Before that, I co-founded a SaaS platform for freelancers, ran a web dev studio, and launched several side projects featured on Product Hunt and Hacker News.
Led the architecture and development of a scalable logistics dashboard used by 50+ enterprise clients. Introduced TypeScript across the codebase and mentored 4 junior devs. Improved API response times by 40% and led migration to a microservices setup.
Worked on core features of NovaTech's B2B SaaS platform, including billing automation and user role management. Contributed to internal tools, improved CI/CD pipelines, and helped reduce bug rates in production by 60%.
Designed and built custom web applications for startups in healthcare and e-commerce. Specialized in React, Node.js, and PostgreSQL. Delivered over 15 projects, including 3 MVPs that led to seed funding for clients.
Built and maintained marketing websites and landing pages for clients across Europe. Optimized performance and SEO, and contributed to the studio's internal UI component library using vanilla JS and SCSS.
Modern admin panel built with Next.js and Tailwind CSS. Fully responsive, animated, and production-ready.
Clean and minimal e-commerce frontend with shopping cart, filters, and product pages.
Developer portfolio template with dark/light mode, animations, and responsive layout.