Stepan D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

With over 5 years of experience, I offer extensive expertise in API development as well as blockchain infrastructure for DeFi and Medicare solutions. I excel in applying modern software design principles to build fast, scalable, and maintainable backend applications. Known for my ability to find common ground in discussions and interactions, I combine deep technical knowledge with a personable approach to consistently deliver the results you expect. Good experience with: • NodeJS, Express, NestJS; • SQL, NoSQL, Graph databases, Redis; • GCP, AWS and CI/CD deployment; • Testing; • Web3; • Microservices.