Edge API Engineer (Rust/Go/TS) — Hybrid

Cloudflare; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Job summary

Cloudflare in London is seeking an experienced engineer to design, implement, and operate the S3-compatible API gateway for R2, delivering low-latency, highly available access at global scale. You will work across the storage and metadata layers and own the end-to-end request path.

You will use Rust, TypeScript, or Go, with 3–4 years of distributed systems experience, and collaborate across teams to optimize performance and reliability in a hybrid London environment.

Qualifications

• 3–4 years of experience building or operating large-scale distributed systems on the request path.
• Strong programming skills in Rust, TypeScript, Go, or similar languages.
• Familiarity with object storage, HTTP gateways, edge computing, or service-oriented architectures.
• Experience designing and operating high-throughput APIs with authentication, routing, rate limiting, and backward-compatible API evolution.

Responsibilities

• Design, implement, and operate the S3-compatible API gateway that serves every R2 operation, ensuring correctness, low latency, and compatibility with the S3 API surface.
• Build and operate production services on Cloudflare Workers and Kubernetes that handle high-throughput request traffic with strong availability and durability guarantees.
• Own the request path end to end — authentication, authorization, routing, rate limiting, and error handling — and the interfaces between the gateway and R2's storage and metadata layers.
• Own projects end to end: from design docs through implementation, testing, deployment, and production monitoring.
• Continuously improve the reliability, performance, and observability of the gateway; ramp quickly into unfamiliar and legacy code paths and reduce operational toil.
• Participate in on-call rotations, drive incident resolution, and write postmortems that raise reliability standards.

Skills

Rust

TypeScript

Go

Distributed systems

Tools

Cloudflare Workers

Kubernetes

S3 API

Edge computing

Job description

Cloudflare in London is seeking an experienced engineer to design, implement, and operate the S3-compatible API gateway for R2, delivering low-latency, highly available access at global scale. You will work across the storage and metadata layers and own the end-to-end request path.

You will use Rust, TypeScript, or Go, with 3–4 years of distributed systems experience, and collaborate across teams to optimize performance and reliability in a hybrid London environment.