Edge Functions Engineer
Develops and optimizes Supabase Edge Runtime, a Rust-based Deno host for global edge TypeScript functions. Evolves infrastructure for low-latency compute, integrates with Supabase stack, and improves developer tools. Requires 5+ years backend/systems experience with Rust, TypeScript, and scalable infra.
About the job
What You’ll Own
- Evolving Supabase Edge Runtime - an Open-sourced Rust-based host that runs the Deno isolate, manages the main/user runtime split, and enforces per-request memory and CPU limits.
- Implementing monitoring, alerting, and OpenTelemetry tracing across the runtime, then using that visibility to drive optimizations that improve latency and reliability of the service.
- Working closely with the Deno and other open-source teams, contributing to upstream and relaying our users' requirements.
- Participating in an on-call rotation to keep Edge Functions healthy in production.
- Help manage and improve features like scheduled functions, background tasks, WebSockets streaming, ephemeral file storage, and custom routing.
- Integrating functions more tightly with the rest of the Supabase stack - Auth, Postgres, Storage, and Realtime.
- Expanding functions to support more use cases (AI inference, MCP servers, hosting simple websites, URL shorteners).
- Improving the DX of developing and debugging functions locally through the Supabase CLI, including DevTools integration, logging, and production parity.
What You’ll Bring
- At least 5 years of backend or systems engineering experience, with strong fluency in Rust and TypeScript.
- Experience with V8 Isolates, Deno and the JavaScript runtimes in general.
- Experience operating infrastructure at scale - Kubernetes, AWS, Cloudflare Workers, Redis, or comparable systems.
- A strong vision for how compute and data can be pushed to the edge.
Bonus: experience building developer-facing CLIs or front-end tooling that sits on top of an infrastructure product.
Skills
Rust, TypeScript, Deno, Kubernetes, AWS, Cloudflare Workers, Redis, V8 Isolates, OpenTelemetry, Supabase Cli
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