The Backend Engineer will set the technical direction for Axiom's backend, building and operating low-latency APIs and real-time pipelines. They will own system performance under constant write load and improve fleet architecture while mentoring other engineers.
Key Responsibilities
- Set technical direction for Axiom's backend.
- Build and operate the low-latency APIs, indexers, and real-time pipelines behind the product.
- Own latency, throughput, and correctness for systems under constant write load.
- Design schemas and caching across Postgres, Redis, and ClickHouse at high volume.
- Ship across chains - Solana, BNB, Ethereum, Base, and more.
- Debug production incidents across services, databases, and chain infrastructure.
- Improve fleet architecture while keeping systems simple and operable.
- Raise the engineering bar through strong judgment and mentorship.
Qualifications & Requirements
- Fintech
- Blockchain
- Crypto
Preferred / Nice-to-Have Qualifications
- Experience with low-latency, high-throughput systems.
- Familiarity with Redis at cluster scale.
- Advanced knowledge of PostgreSQL features like indexing and replication.
- Experience with WebSocket fan-out and event-driven architectures.
- Knowledge of blockchain indexing or onchain data.
About Axiom
Axiom is a zero-knowledge coprocessor for Ethereum that provides smart contracts with trustless access to historical blockchain data and compute. By generating ZK-SNARK proofs of past state, transactions, and receipts, Axiom enables developers to build data-rich dApps, retroactive rewards, on-chain identity systems, and dynamic DeFi without relying on centralized oracles. Backed by top crypto venture firms, Axiom combines cutting-edge cryptography with developer-first tooling. The engineering bar emphasizes applied cryptography, halo2 circuit design, and EVM internals. Axiom utilizes ZK-SNARK proofs to give Ethereum smart contracts trustless access to historical blockchain data, enabling data-rich dApps and dynamic DeFi applications. Axiom utilizes ZK-SNARK proofs to give Ethereum smart contracts trustless access to historical blockchain data, enabling data-rich dApps and dynamic DeFi applications.