Senior Software Engineer (Cloudflare for SaaS)

Cloudflare, a leading internet security and performance company, as a Senior Software Engineer for our Cloudflare for SaaS product. In this role, you will design, build, and operate backend services and APIs for managing customer domains and their configuration. You will work primarily on backend services and RESTful APIs in Go and other languages, modernize legacy control-plane workflows, and improve the reliability and scalability of production systems.

Responsibilities

• You will collaborate with product managers and engineers across Cloudflare, write clear technical specifications, review code, instrument services, and help diagnose and resolve operational issues.
• Design, build, and operate reliable backend services and APIs for managing customer domains and their configuration.
• Evolve the control plane to support tens of millions of customer domains without sacrificing correctness, availability, or API performance.
• Collaborate across engineering and product teams, document designs and tradeoffs, and review the work of fellow engineers.

Requirements

• Clear written and verbal communication, including the ability to explain technical decisions and tradeoffs
• Strong debugging and troubleshooting skills across applications, data stores, and production environments
• Experience writing production-quality code in Go or another language, with a willingness to learn Go
• Proficiency with modern Unix/Linux development and runtime environments
• A track record of delivering well-tested, reliable code and taking ownership of it in production
• 3+ years of professional experience building backend systems at a technology company
• Experience designing, building, and operating distributed systems or high-scale services
• Experience designing and evolving RESTful APIs used by external customers
• Working knowledge of SQL and relational databases such as PostgreSQL, including schema and query design
• Understanding of distributed-systems concerns such as consistency, caching, concurrency, and failure recovery
• Experience modernizing legacy systems or migrating workflows to a service-oriented architecture
• Experience with observability tools and practices, including metrics, logs, tracing, alerting, and SLOs
• Familiarity with PKI/TLS, certificate lifecycle management, ACME, DNS, or domain validation

Preferred

• Experience with message queues, Kubernetes, or globally distributed configuration systems
• Interest in building intuitive product experiences for customers managing large fleets of domains