Backend Engineer, Integrations & APIs

About the role

We need a Backend/Systems Engineer who owns the critical layer between our core infrastructure and the outside world. The public API, indexing, data pipelines, and everything that makes the system usable by developers and partners.

Responsibilities

• Public API Layer: Design and build the JSON-RPC endpoints that external tools, SDKs, and wallets use to communicate with the core network (transaction submission, status queries, account state).
• Transaction Lifecycle: Own the full path from client to consensus and back. Status tracking, error reporting, and timeout handling.
• Indexer & Query Backend: Build the data backend that powers the block explorer, partner integrations, and historical state queries.
• Data & Observability: Build out analytics pipelines (e.g., BigQuery population) and implement robust metrics and event logging using tools like Prometheus, Clickhouse, and Sentry.
• Cross-Functional Impact: Work across service boundaries, getting comfortable reading code in components you don't own to understand how they behave.

Requirements

Strong systems or backend programming experience in Rust, C++ or both (our codebase uses both).

Proven track record of designing and building robust RPC/API services that handle real-world, high-scale traffic.

Deep understanding of database architecture, indexing, and query patterns.

You are a builder who takes ownership of production infrastructure, not just prototypes.

Qualifications

Prior experience building or operating blockchain infrastructure (nodes, RPC layers, indexers) in production.

Experience with a testnet or mainnet launch.

Skills

Strong systems or backend programming experience in Rust, C++ or both.

Benefits

Competitive pay with a base salary range for this position of $140,000 - $210,000 depending on job-related knowledge, skills, experience, and location.

In addition, we offer grants along with the following perks and benefits:

• USA Benefits/Perks: Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents
• Flexible time off + 15 company holidays including a company-wide holiday break
• Generous paid parental leave for all parents, plus paid pregnancy disability leave for birthing parents
• Gym reimbursement ($80 per month)
• Life & ADD (up to $50K)
• Short & Long term disability
• 401K with 4% match
• Health & Dependent Care FSA Accounts
• Commuter benefits with $250/month employer contribution
• Health Savings Account (HSA) with monthly employer contribution
• Family building benefits through Kindbody
• Wellbeing benefits (One Medical, Rightway, Headspace)
• L&D budget of $1,500/year
• Daily lunch and snacks in office
• Company retreats