Rust Systems Engineer, Security Rules & Distributed Systems

JobCubby; Greater London; Hybrid; GBP 46,000 - 78,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

FSAs / Flexible Spending Accounts

Commuter Spending Accounts

Maternity & Family Benefits

Mental health support

Job summary

Cloudflare seeks a talented Systems Engineer to join the Security Rules team, building and operating Rust-based services at scale. You will work on microservices, contribute to Rate Limiting and WAF, and collaborate with security, SRE, and product teams to deliver reliable security features.

You will participate in design, code, tests, and operations, with on-call responsibilities and a strong emphasis on ownership, empathy, and continuous improvement across a fast-paced engineering culture.

Qualifications

• 3+ years of relevant professional experience with a technology company.
• Strong programming skills in Rust, Go, C++, or a similar systems-level language.
• Experience building and operating distributed systems.
• Experience with monitoring, alerting and debugging high volume production systems.
• Experience with databases (PostgreSQL, Clickhouse, Memcached).
• Strong interpersonal and communication skills, demonstrating empathy, teamwork and ownership.

Responsibilities

• Design, implement, and maintain the software systems that comprise Cloudflare’s Application Security Product Offering such as Rate Limiting, Web Application Firewall and more.
• Participate in all stages of the software development lifecycle, from designing and documenting systems to writing code, automated tests, and monitoring production deployments.
• Collaborate with internal teams, including security, network engineering, SRE, and product management, to design scalable solutions to difficult technical problems.
• Review work from your peers throughout all stages of the development lifecycle to ensure high-quality, maintainable code.
• Mentor team members and work with support teams to ensure customer delight and bring out the best in everyone.
• Debug issues in complex systems and contribute to the maintenance and improvement of operational health.

Skills

Rust

Go

Distributed systems

PostgreSQL

Clickhouse

Memcached

Monitoring

Teamwork

Tools

Docker

Kubernetes

gRPC

Kafka

Job description

Cloudflare seeks a talented Systems Engineer to join the Security Rules team, building and operating Rust-based services at scale. You will work on microservices, contribute to Rate Limiting and WAF, and collaborate with security, SRE, and product teams to deliver reliable security features.

You will participate in design, code, tests, and operations, with on-call responsibilities and a strong emphasis on ownership, empathy, and continuous improvement across a fast-paced engineering culture.