Senior Software Engineer (Hybrid - Poland)

With millions of wallets created and a global audience, Bitcoin.com is one of the world's leading crypto content and onboarding platforms. We are now starting something new, from a blank repo in Rust, and we are early enough that the architecture is still being decided. Join us in bringing crypto to the next billion users.
Location: Warsaw (remote for first months, then hybrid)
Key Responsibilities
Design and build the core services behind the product: APIs, data models, integrations, and make the architectural calls that will shape the system for years
Own significant pieces of the product end-to-end, from design through production, including on-call ownership and incident response
Partner directly with Product and Design to shape requirements, pushing back where needed so what gets built holds up under real-world load
Set the technical standard for the codebase: write code others can maintain, and hold the team to that bar through reviews and mentorship
Drive architecture and technical decisions while the foundations are still being laid, and bring the judgment to know which decisions are expensive to reverse
Mentor other engineers and help level up the team's practices around testing, instrumentation, and code quality
What We Are Looking For:
Required
5+ years of professional experience, with a track record of owning systems in production, not just shipping features
Strong Rust, Go, Java or Kotlin; production in Rust is a must
Proven experience designing REST APIs at scale; contracts, versioning strategy, and the judgment to know what will and will not age well
Deep experience with AWS or equivalent, containers, and CI/CD, including having built or hardened these systems, not just used them
Fluent with AI coding tools like Claude Code, with strong judgment on when to trust, and when to override, their output
Experience mentoring engineers and/or leading technical initiatives
Clear written and verbal English, and a self-driven work style
BS in Computer Science or equivalent experience
Nice to Have
Payment rails (SEPA, SWIFT, ACH) or card issuing
Regulated fintech: PSD2, KYC/AML, PCI DSS
Crypto custody, on-chain settlement, stablecoin flows
Monitoring and analytics tools (Sentry, New Relic)
Experience setting technical direction or architecture for a product from its earliest stages
Solid blockchain fundamentals: ERC20, RPC nodes, UTXO vs account models
Why Join Us
Competitive salary and benefits
Build a new product from the ground up, not maintain someone else's
Room to grow in a fast-moving global organization
Shape the architecture and technical culture of a fast-moving global organization
One of the most recognized names in crypto
Flexible, modern environment

Employment type
Employee

Work arrangement
No