Staff Engineer - Payments & Commerce Platform

About the role

We want our Principal Enggs to be the technical force‑multiplier who sets the domain modelling, architecture, raises the reliability bar, and multiplies team effectiveness. You’ll steward our core commerce models—subscriptions, payments , Catalog, Pricing, Inventory, fulfillment, reconciliation , tax —and the services around them, ensuring correctness by design, auditability, and delightful performance at scale.

What you'll do

• Architect and ship multi‑tenant, planet‑scale services (checkout, subscriptions, payments orchestration, invoicing
• Be the custodian of API & schema design: own protobuf/ConnectRPC conventions, versioning policy, deprecation playbooks
• Guarantee resilience & availability of core payment paths: timeouts, retries with jitter, circuit breakers, idempotency keys, outbox/Saga patterns, hedged requests
• Ensure complete auditability: append‑only double‑entry ledger, immutable event streams, trace‑linked entities (OTel trace/span IDs), tamper‑evident trails
• Own error boundaries end‑to‑end: enumerate failure domains (PSP, network, data, concurrency, quota, browser, device); design uniform error contracts

What you need

• 2–3 years in finance, audit & banking
• Budgeting
• Reporting
• MongoDB
• GCP
• Compliance
• Redis
• Any graduate

Good to have

• ISO 27001
• CI/CD
• Reconciliation
• gRPC
• Performance testing
• Vue.js