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Backend Engineer, Integrations & APIs

Builds public APIs, indexing, data pipelines, and observability for a novel high-performance distributed systems platform handling real value transactions. Requires strong Rust/C++ backend experience and production infrastructure ownership.

140k – 210kSan Francisco, CABackend EngineeringHybrid

About the role

Responsibilities

  • Public API Layer: Design and build JSON-RPC endpoints for transaction submission, status queries, and account state.
  • Transaction Lifecycle: Own the full path from client to consensus, including status tracking, error reporting, and timeout handling.
  • Indexer & Query Backend: Build data backend for block explorer, partner integrations, and historical state queries.
  • Data & Observability: Build analytics pipelines (e.g., BigQuery), metrics, and event logging with Prometheus, Clickhouse, and Sentry.
  • Cross-Functional Impact: Work across service boundaries, reading code in other 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 taking ownership of production infrastructure.

Nice-to-Haves

  • Prior 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 knowledge, skills, experience, and location.
  • Lumen-denominated grants.
  • USA benefits: competitive health/dental/vision, flexible time off, 401K with 4% match, gym reimbursement, commuter benefits, and more.

Skills

RustC++Json-RpcDatabase IndexingPrometheusClickHouseSentryBigQueryBlockchain InfrastructureRpc Services

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