Senior Backend Engineer
Core
Design, build, and operate Scala backend services connecting Ledger wallets and the Enterprise platform to blockchain backends for account management, transaction processing, and on-chain data aggregation.
Role type
Senior Scala Backend Engineer (Blockchain)
Builds
Backend services for blockchain account management, transaction processing, and on-chain data aggregation across Ledger Live and Ledger Enterprise.
Domain
Web3 / Digital Assets / Blockchain Infrastructure (via careerplan.io/jobs/802e6373-8b58-4a64-b30a-74f7e84ee00c-senior-backend-engineer-at-ledger)
Required skills
Scala, functional programming, blockchain integration (account-based, UTXO, privacy-preserving chains), event-driven systems, PostgreSQL, RabbitMQ, NATS, observability tooling, TypeScript, AI coding tools
Preferred skills
Experience with distributed systems, incident management, technical debt management, open source contributions
Technologies
Scala, PostgreSQL, RabbitMQ, NATS, Datadog, TypeScript
Responsibilities
Design and build Scala services for blockchain integration; lead end-to-end blockchain integrations; own production quality including SLIs/SLOs and incident resolution; define contracts with cross-functional teams; write and review ADRs; mentor engineers
Seniority
Senior, hands-on IC