Senior Systems Engineer — Distributed Browsing & Security

Cloudflare, Inc.; Seattle (WA); On-site; USD 185,000 - 254,000; Full time

Benefits offered by this job

Equity plan

Health & Welfare Benefits

Time Off & Leave programs

401(k) Retirement Savings Plan

Employee Stock Participation Plan

Flexible PTO

Job summary

Cloudflare, Inc. in Seattle is seeking an accomplished systems engineer to lead multi‑component initiatives in a Chromium‑based browser and distributed services environment.

You will design, implement, and roll out changes across C++, Go, Rust, and TypeScript, tackling latency, reliability, and security trade‑offs. You’ll investigate cross‑layer performance, improve observability and release safety, and mentor engineers while collaborating with partner teams.

Qualifications

• Strong production C++ proficiency, including memory and resource ownership, concurrency, and debugging in substantial codebases.
• Experience leading complex systems or distributed-service improvements across multiple components, from unclear problems to reliable production outcomes.
• Strong Linux/UNIX and networking fundamentals, with experience diagnosing latency, resource‑consumption issues using profiling and operational evidence.
• Experience designing and operating distributed systems, with judgment about service boundaries, data partitioning, consistency, timeouts/retries, backpressure, capacity limits, and recovery from partial failures.
• 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.
• Willingness to work across C++, Rust, Go, and TypeScript and learn unfamiliar parts of the stack.

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++ proficiency

Distributed systems

Linux/UNIX networking

Go/Rust/TypeScript

Communication & mentorship

Tools

Chromium

Go

Rust

TypeScript

WebRTC

Skia

WebAssembly

WebGL

Nomad

Kubernetes

Cloudflare Workers

Job description

Cloudflare, Inc. in Seattle is seeking an accomplished systems engineer to lead multi‑component initiatives in a Chromium‑based browser and distributed services environment.

You will design, implement, and roll out changes across C++, Go, Rust, and TypeScript, tackling latency, reliability, and security trade‑offs. You’ll investigate cross‑layer performance, improve observability and release safety, and mentor engineers while collaborating with partner teams.