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Stepan H.
@stepa_jj
Full Stack Software Engineer
Allemagne
À propos de moi
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.
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Compétences
Stepan H.
hors ligne •
Temps de réponse moyen de 1 heure
Voir mes services
API & Intégrations
I will build golang backend apis and microservice
API & Intégrations
I will build a custom node js backend and rest API
Portfolio
Expérience professionnelle
OnlyP2P – P2P Trading Platform | https://p2pru.com/
Self Employed • Indépendant
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/
