Software Engineer - Rust - Crypto Back Office

About [Employer hidden — view at passion-project.co.uk]

[Employer hidden] is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, [Employer hidden]’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world.

The Team

The Crypto Backoffice team is where blockchain meets the business. We own the services that turn on-chain data into fund movements, regulatory compliance, liquidity management and signing operations at scale. We manage wallets, on-chain positions, and regulatory segregations across 120+ chains — ensuring liquidity is where it needs to be for the business to operate smoothly while satisfying all internal and external requirements.

The Opportunity

• Design and implement high-throughput, low-latency services and libraries in Rust and TypeScript
• Manage the full lifecycle of on-chain wallets across blockchains - from derivation to ownership, at the scale of a global exchange
• Build and maintain the systems that ensure liquidity for clients while maintaining strict compliance with regulatory requirements
• Own the core services that give the rest of the exchange visibility into on-chain state
• Design and implement integrations with third-party providers to move funds efficiently across chains
• Collaborate closely with stakeholders to deliver first-class treasury management tools
• Contribute to internal tooling, documentation, and standards that raise the bar for the whole org

Skills You Should HODL

• 5+ years of backend engineering experience
• Strong proficiency in asynchronous Rust
• Experience with high-volume, distributed systems
• Familiarity with API design and gRPC
• Experience with Kafka or similar event streaming platforms
• Comfortable with core DevOps tooling such as Docker, Kubernetes, CI/CD pipelines
• Hands-on experience with multiple blockchain ecosystems
• Experience working with or contributing to open-source blockchain clients
• Familiarity with relational databases, logging & monitoring systems, and cloud-based infrastructure providers
• Passionate about security, reliability, and performance
• Considerate of tomorrow’s engineer: clean code, clear documentation, meaningful tests
• Comfortable with ambiguity and able to drive alignment across teams with different priorities
• Pragmatic – you know when to build the elegant solution and when to ship the working one