Senior Edge API Engineer - Rust/Go (Hybrid)

Cloudflare; Greater London; Hybrid; GBP 90,000 - 135,000; Full time

Job summary

Cloudflare is seeking engineers for the R2 Gateway team in London, a hybrid role that combines systems programming with edge computing. You will design and operate the S3-compatible API gateway powering R2 interactions, ensuring low latency, correct behavior, and seamless integration with Cloudflare’s global network.

The role emphasizes ownership of end-to-end projects, collaboration across storage, networking, and platform teams, and the use of AI tools to accelerate development and debugging

Qualifications

• Proficiency in Rust, TypeScript, or Go for building high-performance networked services.
• Experience with distributed systems and low-latency APIs.
• Strong communication and collaboration across teams.

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.
• Use AI tools extensively to accelerate development, debugging, and operational tasks. We expect engineers to leverage AI as a core part of their workflow.
• Collaborate across teams (storage infrastructure, metadata, networking, other platform teams) to coordinate API contracts, capacity planning, and cross-cutting initiatives.

Skills

Rust

TypeScript

Go

Tools

Cloudflare Workers

Kubernetes

Durable Objects

Job description

Cloudflare is seeking engineers for the R2 Gateway team in London, a hybrid role that combines systems programming with edge computing. You will design and operate the S3-compatible API gateway powering R2 interactions, ensuring low latency, correct behavior, and seamless integration with Cloudflare’s global network.

The role emphasizes ownership of end-to-end projects, collaboration across storage, networking, and platform teams, and the use of AI tools to accelerate development and debugging