Senior Systems Engineer (Browser Isolation)

Join Cloudflare as a Senior Systems Engineer in the Browser Isolation team. You will work at the intersection of systems programming, distributed systems, and security, contributing to the development of a Chromium-based browsing engine and remote rendering technology. This individual-contributor role requires strong proficiency in C++, Rust, Go, and TypeScript, as well as experience in designing and operating distributed systems. You will lead complex initiatives, make architectural trade-offs, investigate performance bottlenecks, and mentor other engineers.

Responsibilities

• Lead complex, multi-component initiatives from problem definition and design through implementation, staged rollout, and measurable production outcomes.
• Design and implement changes in our Chromium-based C++ browser and the distributed services and systems components supporting remote browsing, working across Go, Rust, and TypeScript.
• Coordinate work with partner teams, surface dependencies and risks early, and guide delivery through ambiguity.
• Experience designing safe rollout and recovery strategies and maintaining production software over its lifecycle
• Ability to communicate trade-offs clearly, align stakeholders, mentor teammates, and improve engineering practices through constructive feedback
• Experience designing and operating distributed systems, with sound judgment about service boundaries, data partitioning, consistency, timeouts and retries, backpressure, capacity limits, and recovery from partial failures

Requirements

• A willingness to work across C++, Rust, Go, and TypeScript and learn unfamiliar parts of the stack
• Strong Linux/UNIX and networking fundamentals, with experience diagnosing correctness, latency, and resource-consumption issues using profiling and operational evidence
• Strong production C++ proficiency, including memory and resource ownership, concurrency, and debugging in substantial codebases
• A track record of independently leading complex systems or distributed-service improvements across multiple components, from an unclear problem to a reliable production outcome
• These are preferred qualifications, not prerequisites. Prior Browser Isolation or Cloudflare experience is not required
• Container and workload orchestration, including Nomad or Kubernetes, and service discovery
• Production observability, capacity planning, incident response, or build and release infrastructure

Preferred

• Browser engines, Chromium, browser sandboxing, or security-sensitive systems
• Low-latency streaming, graphics, remote computing, or other real-time systems
• Go or TypeScript; WebRTC, Skia, WebAssembly, or WebGL
• Experience using Rust for systems programming or distributed services