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Software Engineer

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Senior Software Engineer

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Systems Engineer

Requirements

  • Experience: Proven track record as a software engineer or similar role with a deep understanding of developing and maintaining distributed systems.
  • System Design: Experience designing, implementing, and maintaining secure and highly-available distributed systems.
  • Programming Languages: Programming experience with one of the following languages: Go, Rust, or Python.
  • Reliability Metrics: Deep understanding and hands-on experience measuring uptime metrics like correctness, availability, and latency using SLOs/SLIs.

Nice to Haves

  • Experience working with Clickhouse, Prometheus, GraphQL, and Postgres.
  • Experience working with data pipelines with a focus on reliability and scale.
  • Experience working with synthetic traffic & load testing tools.
  • Experience developing reliable, extensible platforms that other engineers can trust and leverage.

What You'll Be Doing

  • Build the Platform: Create and maintain production reliability testing infrastructure and availability reporting.
  • Define Reliability Metrics: Measure uptime metrics like correctness, availability, and latency SLIs/SLOs. Develop, document, and execute SLI/SLO plans to verify systems continue to operate as expected.
  • Collaborate Cross-Functionally: Collaborate with engineering teams to understand how their systems function and interact with other Cloudflare systems in production at a huge scale.
  • Communicate & Improve: Provide clear and concise feedback to engineering and product teams as an excellent communicator. Help drive continued improvements in the software development and reliability measurement processes.

Perks and Benefits

  • Equity: Eligible to participate in Cloudflare’s equity plan.
  • Health & Welfare Benefits:
    • Medical/Rx Insurance
    • Dental Insurance
    • Vision Insurance
    • Flexible Spending Accounts
    • Commuter Spending Accounts
    • Fertility & Family Forming Benefits
    • On-demand mental health support and Employee Assistance Program
    • Global Travel Medical Insurance
  • Financial Benefits:
    • Short and Long Term Disability Insurance
    • Life & Accident Insurance
    • 401(k) Retirement Savings Plan
    • Employee Stock Participation Plan
  • Time Off:
    • Flexible paid time off covering vacation and sick leave
    • Leave programs, including parental, pregnancy health, medical, and bereavement leave
AI Summary ✨
Cloudflare logo

Cloudflare

London, UK

Experience: Mid-level
Posted: September 18, 2026
Last seen: 2 hours ago
Golang
Graphql
Postgresql
Python
Rust
backend

Why we track Cloudflare

Cloudflare has EU offices in London, Lisbon, and Munich. They sit at the edge of the internet—literally. The engineering work around CDN, security, and performance is technically deep. One of the more interesting infrastructure companies to work at.

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