
Senior Software Engineer, Durable Objects (DO)
CloudflareResponsibilities
- Build and improve the Durable Objects runtime.
- Design and develop low-level routing and storage systems for customer applications.
- Improve system reliability, scalability, performance, and feature depth.
- Own code end-to-end from design through production.
- Solve complex production distributed-systems problems.
- Work across JavaScript, TypeScript, Rust, and C++.
- Help drive the continued evolution of the Durable Objects system.
Requirements
- At least 5 years of experience writing systems software.
- Experience owning code in production with an operational mindset.
- Strong foundations in data structures, algorithms, and system design.
- Deep expertise in at least one systems programming language such as C/C++ or Rust.
- Experience designing and architecting large-scale distributed systems.
- Familiarity with cloud platforms, especially serverless architectures.
- Experience as a technical leader or team lead driving engineering decisions.
- Experience with database internals, especially SQLite, is preferred.
- Understanding of browsers, HTTP, JavaScript, and WebAssembly is preferred.
- Experience in low-latency, real-time environments such as game streaming, high-frequency trading, or payment systems is preferred.
- Experience debugging, optimizing, and identifying failure modes in large-scale Linux-based distributed systems is preferred.
Benefits
- Position based in Austin, Texas.
- Candidates progressing to the offer stage may be asked to attend an in-person interview at a Cloudflare office or hub.
- Employment may require authorization to receive software or technology controlled under U.S. export-control laws without sponsorship for an export license.
- Cloudflare offers equal employment opportunity and reasonable accommodations.
Tech Stack
Categories
About Cloudflare
Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business. Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.