Eren Dogruca

Full Stack Developer with over 6 years of experience, primarily focused on Node.js/TypeScript/NextJS, blockchain, and LLM agents and apps.

Built NFT marketplaces, integrated payment systems, and AI-powered apps. Skilled in end-to-end development, microservices, and rapid adoption of emerging technologies.

Experience

Currently at Chainstep GMBH as Backend Engineer. I build responsive web apps and solid backends with modern tools, focusing on clean code and frictionless user experience.

Worked on AI apps using Next.js, Appwrite, LangChain, RAG pipelines, vector databases, and S3. Built NFT marketplace backends and microservices with Node.js/TS, Python, Go, and Postgres, including payment integrations and smart contracts across major chains.

Delivered multiple web3 products such as event-reward apps, an OAuth2 server, public NFT APIs, and NFT-based ticketing. Supported clients by deploying and auditing smart contracts and fixing security and logic issues. Contributed to a government R&D project by building a Spring Boot proxy for SSI integration. Also shipped fullstack web and mobile apps with Next.js, React, Flutter, and NestJS, and handled Kubernetes deployments plus CI/CD with GitHub Actions and Docker.