C

Cloudflare

Secures websites and runs apps on its network

Senior Software Engineer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeHybrid

About the Job

Requirements

  • At least 5 years of professional experience with Rust, Go, or C++.
  • Ability to write code that respects CPU and memory constraints.
  • Comfort with the Linux networking stack, including TCP/IP, TLS, and WebSockets.
  • Familiarity with database connection lifecycles, transaction states, and wire protocols.

Responsibilities

  • Own code from inception to release, delivering solutions at all layers of the software stack for Cloudflare customers.
  • Write design documents outlining solutions to specific problems.
  • Fix bugs in how the user experience renders.

Desired Qualifications

  • Experience debugging complex distributed systems and building for five-nines reliability.
  • Experience with PgBouncer, ProxySQL, or custom database middleware.
  • Familiarity with the Cloudflare Workers ecosystem and the stateful connection challenges of ephemeral computing.
  • Contributions to database drivers, ORMs, or low-level networking libraries.
  • Experience using eBPF, perf, or other profiling tools to identify and resolve bottlenecks.

About the Company

Cloudflare

Secures websites and runs apps on its network

Cloudflare operates a network that protects websites, delivers online content and runs applications closer to their users. Businesses connect websites and internal systems to its services to filter malicious traffic, control access and improve performance, with security and computing running on shared infrastructure. Developers combine application code, object storage and databases with the network used for content delivery and traffic protection. Cloudflare earns revenue from subscriptions and usage charges, with free plans for basic features and negotiated contracts for larger organizations. Cloudflare was founded in 2009 and is headquartered in San Francisco, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Francisco, CA
Founded
2009

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