Job Description
About our product
We are building the first seedless Bitcoin wallet: secure, simple, and fully recoverable. No seed
phrases, no hardware hassle, no custodial risk. We use Bitcoin-native MPC to combine
sovereign-grade security with everyday usability, so customers can set up in seconds and trust
their Bitcoin for life.
We're looking for a staff/ founding backend engineer to help us build the foundations of a
smooth, reliable, and secure wallet experience, applied to the future of Bitcoin.
What you'll do
Design and build low-latency APIs and realtime services that make sends, swaps, and
approvals feel instant.
Own backend integrations with partners (e.g., Turnkey, OneBalance), including secure
webhooks, retries, and idempotent flows.
Implement a policy engine for approvals, caps, timelocks, and joint accounts.
Build a resilient ledger and state machine for money movement with full auditability.
Deliver push-based updates (websockets/SSE) for a snappy mobile UX.
Define and uphold performance budgets: p95 <150ms for core APIs, near-realtime event
streaming.
Instrument, monitor, and debug production systems with OpenTelemetry, structured logs,
and metrics.
Collaborate closely with product and frontend engineers to make the UX buttery-smooth.
What we're looking for
5+ years building backend systems that serve consumer-facing products at scale.
Deep skill in at least one systems language (TypeScript/Node, Go, Rust, Kotlin)
Someone who can lead and design end to end architecture
Strong sense of ownership and leadership skills
Strong command of async I/O, queues, retries, and state machines.
Experience designing idempotent money movement flows (or equivalent critical
workflows).
Database fluency (Postgres, Redis) and data modeling for consistency (sagas, outbox,
dedupe).
Comfort with API design, schema versioning, pagination, and event streaming.
Solid instincts for security, privacy, and compliance in sensitive domains.
Bonus
Exposure to fintech/payments (ledgers, reconciliation, card rails, treasury systems).
Experience with crypto custody or MPC services (e.g., Turnkey, Privy, onebalance.io)
Understanding of Bitcoin UTXO basics or stablecoin mechanics.
Prior work on policy/rules engines or joint/multi-party account flows
Strong debugging chops: tracing, profiling, and fixing performance bottlenecks.
Requirements
Someone who can work full time from our office in Hyderabad, India
