Fair is a Series A company focused on revolutionizing the auto warranty industry by offering better coverage and customer trust. They are seeking a Full Stack Engineer to own their partner-facing platform, design and ship backend services, and enhance the quality of their API platform for B2B partners.
Responsibilities:
- Designing and shipping core backend services across pricing, payments-adjacent workflows, accounting/reconciliation, and partner integrations
- Hardening our B2B API platform (REST + GraphQL) for real-world partner use: idempotency, versioning, webhook signing and replay, sandbox/production separation, rate limiting, abuse protection
- Owning API contract design with a typesafe-by-default mindset. OpenAPI + codegen for REST, code-first schema for GraphQL, error contracts developers can actually trust
- Building for operability. Instrumentation, alerting, dashboards, runbooks. If it goes sideways at 2am, we need to know before a partner does
- Raising the quality bar through test coverage and CI gates that give real confidence at release time, not just green checkmarks
- Handling sensitive data the right way. Security, privacy, and compliance are not afterthoughts here. SOC 2, access controls, audit logging. You take this seriously because we do
- Improving how we work, not just what we ship. Better issue scoping, sharper estimates, cleaner release processes
Requirements:
- 4+ years experience building and operating production backend services. Real users, real uptime requirements, real on-call lessons
- Strong Node.js + TypeScript chops across APIs and backend business logic
- Experience designing and maintaining external-facing APIs with backward compatibility and documentation that partners can rely on
- Real fluency with API platform fundamentals: auth patterns (API keys, OAuth), idempotency, pagination, rate limiting, webhooks and event delivery
- Solid relational database fundamentals. MySQL or Postgres, schema design, safe migrations
- A track record of improving system quality through testing and CI, not just shipping fast
- Ability to scope work into shippable slices, write clear technical tickets, and give estimates that flag the real unknowns
- Fintech, payments, or insurtech experience. Pricing engines, transactional logging, refunds, reconciliation
- You've built or maintained a public B2B API with Stripe-level expectations (versioning, docs, SDK)
- Robust webhook systems. Signing, retries, delivery logs, replay, deduplication, out-of-order handling
- Security and compliance depth. SOC 2 controls, audit logging, secrets management, least-privilege design
- AWS depth. ECS/Fargate, EventBridge/Lambda, SQS/SNS, RDS, CloudWatch, Terraform