Senior Software Engineer, Durable Objects (DO)

Cloudflare
Austin, London
Workplace: HybridFull timeFunction: Software EngineeringExperience: 5+ yearsSkills: ["Leadership","Ownership","Problem-solving","Communication","Collaboration"]

Join Cloudflare’s Emerging Technologies & Incubation team to design and build Durable Objects, Cloudflare's platform for stateful serverless applications. You’ll design low-level routing and storage, own features end-to-end, and tackle distributed systems challenges to improve reliability, scalability, and performance across real-time apps, chat, games, and AI agents.

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FursaFursa
Cloudflare
Cloudflare
2 years ago

Senior Software Engineer, Durable Objects (DO)

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Source: Company careers pageValidated by: Fursa AI
Last checked: 6 hours agoStatus: Live

Job Summary

Join Cloudflare’s Emerging Technologies & Incubation team to design and build Durable Objects, Cloudflare's platform for stateful serverless applications. You’ll design low-level routing and storage, own features end-to-end, and tackle distributed systems challenges to improve reliability, scalability, and performance across real-time apps, chat, games, and AI agents.
Location: Austin, London
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Build the Durable Objects runtime which enables Cloudflare customers to build real-time chat applications, multiplayer games, and AI agents.
  • •Improve reliability, scalability, and performance by developing new system capabilities.
  • •Own your code end-to-end from design to production.
  • •Solve complex technical challenges with production distributed systems.
  • •Develop software in JavaScript, TypeScript, Rust, and C++.

Key Requirements

  • •5+ years of experience writing systems software.
  • •Operational mindset – we don’t just write code, we own it in production.
  • •Strong foundation in data structures, algorithms, and system design.
  • •Deep expertise in at least one systems programming language (e.g., C/C++ or Rust).
  • •Experience designing and architecting large-scale distributed systems.
Experience:5+ yearsCloudDistributed systemsServerless
Skills:LeadershipOwnershipProblem-solvingCommunicationCollaboration
Languages:English
Tech Stack:JavaScriptTypeScriptRustC++CSQLiteWeb

Company Brief

Cloudflare
Provides a global network and cloud platform that delivers security, performance, and reliability services for web applications, APIs, and Internet properties, including CDN, DDoS protection, DNS, and zero-trust security solutions.
Industry: Cybersecurity
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: San Francisco, United States
Founded: 2009
WebsiteLinkedIn