I'm looking for a remote-first fullstack engineering role where I can contribute to meaningful products, solve technical challenges, and grow alongside a skilled and supportive team.
marcel borowczak
@marcelborowczak
Fullstack JavaScript developer based in Poland.
What I'm looking for
I'm a fullstack developer with a strong focus on TypeScript, React, and Node.js (NestJS). I specialize in building modern, performant web applications and have led development of AI-powered products — most notably Zozalo, an intelligent travel planner leveraging LLMs like GPT-4. I enjoy solving hard technical problems, building clean APIs, and crafting intuitive user experiences. I’ve also worked on aviation tech platforms, custom booking flows, and real-time systems.
I'm actively looking for remote-first roles where I can build impactful software, collaborate with great people, and continue growing as a developer and system architect.
Experience
Work history, roles, and key accomplishments
Freelance fullstack developer delivering end-to-end web apps for startups and solo founders. Built responsive UIs (React, Next.js, Tailwind, Framer Motion) and secure backends (NestJS, TypeORM, JWT). Integrated Stripe, OpenAI, Clerk, Amadeus. Deployed on Vercel/DigitalOcean. Specialized in AI workflows, MVPs, and full product ownership.
Co-Founder & Full-stack Developer
Zozalo Technologies
Jul 2024 - Present (1 year)
Co-founder and fullstack engineer at Zozalo. Built and scaled the app using Next.js 15, NestJS, PostgreSQL, and OpenAI. Led AI Trip Planner, Smart Booking, and TripMatch™ development. Integrated Stripe, Clerk, Redis, and Amadeus API. Fine-tuned custom LLM, built full backend infra, and launched growth features like Zozalo Passport and Smart Suggestions.
Frontend Developer
devGaming
Mar 2022 - Jun 2024 (2 years 3 months)
Frontend developer at Devgaming, building and maintaining React-based applications with a focus on performance and UX. Implemented efficient data fetching and caching using TanStack Query. Collaborated closely with backend team to integrate RESTful APIs and deliver smooth, scalable features for end users.
Education
Degrees, certifications, and relevant coursework
Szkoła w Chmurze
High School
2022 - 2024
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Website
marceliborowczak.vercel.appPortfolio
marceliborowczak.vercel.appSalary expectations
Job categories
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