Senior Backend Software Engineer (APIs)

Fastly is hiring a Senior Backend Software Engineer for the Security Products Console team to design, ship, and own public-facing APIs and backend services in Go. The role involves partnering with frontend engineers, product managers, and security researchers, taking ambiguous problems into technical plans, authoring design documents, mentoring engineers, and participating in on-call rotation. The API surface is scaling for new product launches and a growing developer ecosystem. The position is

Hands-on experience designing and building reliable, large-scale backend systems with at least 5 years of relevant experience, 5+ years shipping production Go, 3+ years on public APIs with external consumers. Proven ability to drive multi-week projects end-to-end, good RESTful API design judgement (resource modeling, versioning, idempotency, error semantics, pagination, OpenAPI). Design for downstream consumers, testing and observability as subtraction, daily use of coding agents. Desired: built