Blockchain Engineer
Posted Updated 10
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Summary
Build and extend blockchain payment infrastructure, including Solidity smart contracts, signing pipelines, and audit trails for a crypto-fintech product.
Implement payment transaction lifecycle components, signing pipeline features, Solidity smart contract extensions, custody authorization integrations, audit trails, asynchronous transaction queues, tests, and on-call support.
Responsibilities
- Implement transaction lifecycle components
- Build signing pipeline features
- Implement payment integrity controls
- Extend Solidity smart contracts
- Contribute to custody platform authorization policy integration
- Build structured audit trail logging
- Contribute to the asynchronous transaction queue
- Write high-coverage tests
- Participate in on-call support
Requirements
- 3–5 years of backend software engineering experience
- 1–2 years working directly on EVM-compatible blockchain systems
- TypeScript
- EVM transaction mechanics
- Solidity smart contract development
- Upgradeable proxy patterns
- OpenZeppelin contract libraries
- Idempotency
- At-least-once delivery
- Crash recovery
- Async systems
Benefits
- Competitive compensation
- Remote-first work environment
- Opportunity to shape a market-defining protocol with an experienced founding team
- Meaningful influence over product design at the earliest stage