Senior Systems Engineer, Browser Isolation

Cloudflare, Inc.; United Kingdom; On-site; GBP 110,000 - 170,000; Full time

Benefits offered by this job

Competitive pay and stock ownership

Take-what-you-need vacation

Paid maternity & paternity leave

Healthcare and disability benefits

Commuter program

Wellbeing resources

Job summary

Cloudflare, Inc. is seeking an experienced software engineer to work on the Chromium‑based browser and the distributed services that power remote browsing.

You will design, implement, and ship components across C++, Rust, Go, and TypeScript, collaborating with teams across the browser engine, streaming, and orchestration layers. You will own multi‑component initiatives from problem definition to production rollout, balancing latency, security, and reliability while mentoring colleagues and

Qualifications

• 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
• 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

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
• Make and explain architectural trade-offs across latency, availability, resource efficiency, security boundaries, and operational complexity
• Investigate difficult cross-layer failures and performance bottlenecks, distinguishing browser, host, network, and control‑plane causes
• Improve resilience, capacity management, observability, and release safety; define success metrics and validate results
• Coordinate work with partner teams, surface dependencies and risks early, and guide delivery through ambiguity
• Mentor engineers and raise the quality of code reviews, design reviews, testing, documentation, and operational practices
• Participate in the team’s production on‑call rotation after onboarding, lead technical incident investigations as needed, and drive durable corrective actions

Skills

C++ production

Rust

Go/TypeScript

Linux fundamentals

Networking fundamentals

Distributed systems

System leadership

Code debugging

Tools

Chromium

C++

Rust

Go

TypeScript

WebRTC

Skia

WebAssembly

WebGL

Nomad

Kubernetes

Consul

Job description

Cloudflare, Inc. is seeking an experienced software engineer to work on the Chromium‑based browser and the distributed services that power remote browsing.

You will design, implement, and ship components across C++, Rust, Go, and TypeScript, collaborating with teams across the browser engine, streaming, and orchestration layers. You will own multi‑component initiatives from problem definition to production rollout, balancing latency, security, and reliability while mentoring colleagues and