Crypto Backend Engineer

Were Trezor the company that invented the worlds first hardware wallet and a leading name in crypto security. Founded in 2013 and still 100% self-owned we build open-source products that help more than two million people across 200 countries secure their digital assets.

As a Crypto Backend Engineer youll work on the infrastructure connecting Trezor Suite to blockchain networks and crypto data services powering everything from account discovery and transaction history to fee estimation token metadata and transaction broadcasting.

Youll build services that stay reliable even when blockchain nodes RPC providers or third-party APIs dont. Youll own your work end to end influence architecture and observability and help shape the long-term direction of Trezors blockchain infrastructure.

You dont need to know every blockchain we support on day one. What matters is your ability to understand unfamiliar systems investigate how they behave under failure and turn that knowledge into reliable production software.

If this sounds like the kind of infrastructure youd like to own keep reading.

• Blockchain connectivity - building and improving reliable communication with nodes RPC providers explorers and indexers across UTXO and account-based networks

• Blockbook development & maintenance - maintaining and actively developing Blockbook an open-source blockchain indexer created by Trezor and used by major RPC providers such as QuickNode and NOWNodes

• Backend services - developing services for fiat rates token and coin metadata fees and other crypto data used throughout Trezor Suite

• Third-party integrations - integrating and evaluating providers such as QuickNode while designing sensible caching fallback and routing strategies

• Reliability at scale - improving monitoring logging alerting request optimization and incident detection so users barely notice provider failures

• Architecture and ownership - contributing to technical decisions architecture reviews and infrastructure planning

• Security and collaboration - working closely with DevOps Security and product engineering teams to operate dependable and secure services

• You have production experience building backend services in TypeScript/ or Go

• Experience designing operating and debugging APIs or distributed services

• Solid knowledge of SQL databases preferably PostgreSQL and practical data modelling

• Ability to investigate failures across application network database and third-party service boundaries

• Understanding of production observability including metrics logs tracing and alerting

• Strong problem-solving skills and the ability to make pragmatic technical decisions

• Good written and spoken English

Nice to have:

• Experience with blockchain nodes RPC APIs indexers explorers or other crypto infrastructure

• Understanding of UTXO and account-based blockchain models

• Experience integrating third-party crypto-data services

• Familiarity with Docker containerized deployments caching queues or cloud infrastructure

• Knowledge of multiple blockchain ecosystems and their network protocols

• Open-source contributions

• TypeScript Go PostgreSQL Docker

• Blockchain nodes RPC APIs explorers indexers and third-party data providers

• Monitoring logging and alerting tooling for production services

• Git and an open-source development workflow

• Check out our GitHub

• A unique opportunity to be part of a pioneering security-first company in the crypto industry

• A role where you can build implement and see the real impact of your work

• The chance to work in an open-source company where transparency trust and security are part of how we think

• A high level of ownership and freedom youll have real influence over the architecture and reliability of our blockchain infrastructure

• Option to get paid in bitcoin

• Flexible working hours and a supportive team

• Budget for professional development including training programs courses and workshops of your choice

• Friendly open culture with regular company events and fun get-togethers

• Renovated offices with a gym football table billiards PlayStation 3D printer and free on-site parking

• Additional benefits such as a MultiSport card company mobile phone tariff massages yoga fitness classes and more

Sounds good Wed love to hear from you: just submit your CV and tell us about something youve shipped that youre proud of. Well get back to you as soon as we review your application most likely within a week.

Required Experience:

IC