Profile: BS / Full-stack
Building across the stack
Bartosz Stefaniak.
Full-stack developer / design-minded
- Years of experience
4+
Years of experience
- Feature ownership
E2E
Feature ownership
I’m a full-stack developer specializing in the JavaScript and TypeScript ecosystem. I build dynamic web applications, e-commerce platforms, and software solutions tailored to business needs. On the frontend I work mainly with React and Next.js; on the backend, with Node.js and NestJS.
I take ownership of features from database design and AWS integration through to polished, responsive interfaces. I care about clean, maintainable code and architecture that lets products grow.
My core toolkit includes TypeScript, JavaScript, React, Next.js, Node.js, NestJS, Express, and AWS.
Core stack
- TypeScript
- JavaScript
- React
- Next.js
- Node.js
- NestJS
- Express
- PostgreSQL
- Prisma
- Redis
- AWS
- UI Design
Experience
Nov 2024 - Present
From Poland With Dev
Full-stack Developer
End-to-end features for corporate learning and certification platforms with TypeScript, React/Next.js, Node.js/NestJS, and relational databases. Automated exam validation, multi-tenant workflows, certificate generation, and database performance during high-traffic certification periods.
Aug 2021 - Present
Własna
Freelancer
Websites and small web applications for freelance clients, including selected UI, brand identity, and graphic design work.
Feb 2023 - Jul 2024
Divstack
Software Engineer (JavaScript / TypeScript)
Client delivery across e-commerce and specialist apps. IT Spark: Next.js storefronts with payment, inventory, and third-party integrations, plus responsive UI and technical SEO. Cetus Pro: pigeon loft management with real-time tracking, genealogy, race data, and automated notifications.
Sep 2022 - Jun 2023
NestCode
Software Engineer (JavaScript / TypeScript)
E-commerce solutions mostly with Next.js and Prisma, maintenance of existing sites, and graphic design work.