Backend Engineer with ~2 years of experience building production systems in Go.
My recent work has focused on backend services, APIs, business logic-heavy systems, payment flows, and blockchain integrations. Most of this work is in private repositories as part of commercial projects.
- Data Room — fullstack cloud file storage application
- swanky-cli — contribution to developer tooling for smart contract workflows
- OpenBrush — contribution to smart contract library improvements
- Nethermind Starknet tooling — contribution to Starknet-related developer tooling
- Backend systems
- APIs and business logic
- Payment flows
- Product backend development
- Blockchain-enabled backend systems
- LinkedIn: olexandrberezan
- Email: berezan.ab@gmail.com


