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stepa_jj

Stepan H.

@stepa_jj

Full Stack Software Engineer

Duitsland
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Over mij
Full-stack software engineer with 5+ years in freelance development, 200+ completed orders and 55 positive reviews on a previous platform. I work solo end-to-end, from requirements to deployment. My focus is React, Next.js and TypeScript, including SSR/SSG, App Router and performance optimization. I build Node.js backends, PostgreSQL databases, integrations and automation, plus Go and PHP solutions. For larger projects, I lead a team with a full-stack developer and designer. I also support existing teams with backend work, debugging and code reviews. Have a project in mind? Message me.... Lees meer

Skills

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stepa_jj
Stepan H.
offline • 
Gemiddelde reactietijd: 1 uur

Bekijk mijn diensten

API en integraties
I will build golang backend apis and microservice
VanafUS$ 45 / projectMeer informatie
API en integraties
I will build a custom node js backend and rest API
VanafUS$ 50 / projectMeer informatie

Portfolio

Werkervaring

Self_Employed

OnlyP2P – P2P Trading Platform | https://p2pru.com/

Self Employed • ZZP

Jul 2026 - Present • 4 mos

Built a white-label P2P trading platform, handling the full-stack development from application architecture to production deployment. The frontend is built with Next.js, React and TypeScript. The Node.js/Express backend acts as an independent integration layer between the application and an external P2P provider. It validates and normalizes requests, handles business logic and keeps provider-specific implementation isolated from the frontend. I implemented JWT-based authentication with access and refresh tokens, HttpOnly cookies, PostgreSQL database architecture and Prisma ORM. The main engineering focus was creating a maintainable application with a clear separation of concerns, reliable API integration and full control over the user-facing experience. The platform was successfully deployed to production. Live: https://p2pru.com/