Backend Engineer, Integrations & APIs
Builds and owns public API layer, JSON-RPC endpoints, transaction lifecycle tracking, indexer, and data pipelines for a novel high-performance distributed systems platform. Requires strong Rust/C++ backend experience and production infrastructure ownership.
About the job
Responsibilities
- Design and build JSON-RPC endpoints for transaction submission, status queries, and account state.
- Own the full transaction lifecycle from client to consensus, including status tracking, error reporting, and timeout handling.
- Build indexer and query backend for block explorer, partner integrations, and historical state queries.
- Develop analytics pipelines (e.g., BigQuery) and implement observability with Prometheus, Clickhouse, and Sentry.
- Work across service boundaries to understand and integrate with core components.
Requirements
- Strong systems or backend programming experience in Rust, C++ or both.
- Proven track record designing and building robust RPC/API services for high-scale traffic.
- Deep understanding of database architecture, indexing, and query patterns.
- Builder mindset with ownership of production infrastructure.
Nice-to-Haves
- Experience building or operating blockchain infrastructure (nodes, RPC layers, indexers) in production.
- Experience with testnet or mainnet launch.
Compensation
- Base salary: $140,000 - $210,000 depending on experience and location.
- Lumen-denominated grants.
- USA benefits: competitive health/dental/vision, flexible time off, 401K match, gym reimbursement, commuter benefits, etc.
Skills
Rust, C++, Json-Rpc, Database Indexing, Prometheus, ClickHouse, Sentry, BigQuery, Rpc Services, Blockchain Infrastructure
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