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September 1, 2026

Senior Software Engineer (Rust)

Senior • On-site

26,000 - 30,000 PLN/yr

Warsaw, Poland

We are looking for a Software Engineer (Rust) to join a fast-growing international crypto company. You will design and build core services, including APIs, data models, and integrations, while making key architectural and technical decisions that will shape the product.

Requirements

  • 5+ years of professional software development experience
  • Hands-on experience building and operating production systems in Rust
  • Daily practical use of AI coding tools, with the judgment to verify and override their output
  • Experience designing REST APIs at scale, including contracts and versioning strategy
  • Production experience with AWS or other cloud platforms
  • Experience building and hardening container deployments and CI/CD pipelines
  • Experience mentoring engineers or leading technical initiatives
  • A degree in Computer Science or equivalent practical experience
  • Excellent English communication skills, written and verbal

Nice to Have

  • A background in fintech or payment systems, such as SEPA, SWIFT, ACH, or card issuing
  • Experience in regulated environments, such as PSD2, KYC/AML, or PCI DSS
  • Exposure to crypto custody, on-chain settlement, or stablecoin flows
  • Solid blockchain fundamentals, such as ERC20, RPC nodes, and UTXO vs account models
  • Experience with monitoring and analytics tooling such as Sentry or New Relic

Responsibilities

  • Design and build core backend services: APIs, data models, and integrations
  • Make architectural decisions on a codebase being built from scratch
  • Take ownership of major product areas from design through production
  • Take part in on-call and incident response for the systems you own
  • Work with AI coding tools daily, and build the tests and checks that keep their output reliable
  • Work directly with product and design to shape requirements
  • Review code and mentor engineers, raising the bar on testing, instrumentation, and code quality

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