Build and scale an international fintech payments platform combining traditional payment systems with crypto infrastructure.

Responsibilities:

  • Develop real-time processing, settlement, reconciliation, and wallet services.
  • Provide technical leadership for teams of 5–15 engineers.
  • Drive architectural decisions, conduct code reviews, and mentor engineers.
  • Stay hands-on with daily coding and end-to-end technical ownership.

Requirements:

  • 8+ years of production experience with TypeScript/JavaScript across frontend and backend.
  • Strong expertise in React, Node.js, and GraphQL/Apollo.
  • Hands-on experience with AWS Serverless architecture.
  • Strong knowledge of DynamoDB/NoSQL and PostgreSQL.
  • Proven experience leading technical teams of 5–15 engineers.
  • Experience with AI-assisted development tools, including 1+ year with Anthropic Claude.

Nice to have: Experience in fintech/payments, settlement systems, PCI compliance, ledger systems, or fee models.

Full-time. Candidates must be physically located in Poland; Kraków is preferred, but other Polish cities are considered.