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.
140k – 210k/yr
HybridBackend Engineering
About the role
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.
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