Senior Software Engineer, Workers Runtime

Cloudflare
Austin, London
Workplace: HybridFull timeFunction: Software EngineeringExperience: 2+ yearsSkills: ["Communication","Problem-solving","Collaboration","Ownership","Teamwork"]

Senior Software Engineer for Cloudflare’s Workers Runtime team, building the edge-executed runtime that powers customer code. You’ll ship features to improve performance, JS API surface, and WebAssembly support, while managing a secure, low-latency distributed Linux system. You’ll influence product direction, collaborate with talented engineers, and own production-grade features from conception to deployment across multiple global locations.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
Cloudflare
Cloudflare
1 year ago

Senior Software Engineer, Workers Runtime

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live

Job Summary

Senior Software Engineer for Cloudflare’s Workers Runtime team, building the edge-executed runtime that powers customer code. You’ll ship features to improve performance, JS API surface, and WebAssembly support, while managing a secure, low-latency distributed Linux system. You’ll influence product direction, collaborate with talented engineers, and own production-grade features from conception to deployment across multiple global locations.
Location: Austin, London
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Collaborate with a team of engineers to design and ship features for the Workers Runtime that executes customer code at the edge
  • •Improve performance and expand the WebAssembly and JavaScript surface area within the runtime
  • •Contribute to the security and reliability of a large-scale Linux-based distributed system in production
  • •Own features from design through production rollout, balancing business goals with technical feasibility
  • •Engage in an iterative development process to meet scaling and performance goals while maintaining high quality

Key Requirements

  • •At least 2 years of recent professional experience with C++ or Rust
  • •Solid understanding of computer science fundamentals including data structures, algorithms, and object-oriented or functional design
  • •An operational mindset - we don’t just write code, we also own it in production
  • •Deep understanding of the web and technologies such as web browsers, HTTP, JavaScript and WebAssembly
  • •Experience working in low-latency real time environments such as game streaming, game engine architecture, high frequency trading, payment systems
Experience:2+ yearsEdge computingCloudInternet
Skills:CommunicationProblem-solvingCollaborationOwnershipTeamwork
Languages:English
Tech Stack:C++RustWebAssemblyJavaScriptHTTPLinuxDistributed systemsGitDockerKubernetes

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