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Vulnerability Defense Software Engineer, Cloudforce One

Cloudflare· Security
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Hybrid (Austin, TX and Washington, D.C.)$150k - $206kFull-timePosted 2w ago

About the role

Software Engineer on Cloudflare’s threat operations and research team (Cloudforce One) focused on identifying and disrupting cyber threats, building scalable, high-performance applications to assess technical risk, investigate complex systems, and deliver actionable guidance to engineering teams.

Responsibilities

  • Design, build, run, and scale distributed tools and services that translate security tradecraft into scalable, evidence-based systems and workflows.
  • Partner with security practitioners to understand workflows, bottlenecks, and opportunities for automation.
  • Improve system design and architecture to ensure stability, performance, and maintainability of both internal and customer-facing services.
  • Analyze, communicate, and help prioritize complex technical concepts across teams.
  • Mentor and guide other developers in the team, helping to build collective technical expertise and promote best practices for writing well-tested, modular, and reusable code.

Qualifications

  • Working knowledge of cybersecurity concepts such as threat modeling, attack techniques, trust boundaries, exploitability, and defensive controls
  • Familiarity with incident response workflows, network containment, and remediation
  • Practical experience in vulnerability research/exploit development and translating findings into actionable mitigations
  • Experience with AI-assisted development and designing agentic AI workflows
  • At least 5 years of experience building large-scale software applications, preferably distributed systems
  • Experience designing and integrating RESTful APIs and/or gRPC services
  • Knowledge of SQL and common relational database systems such as PostgreSQL
  • Ability to independently define and deliver solutions in ambiguous problem spaces
  • Prior experience writing production-ready code in Go and/or TypeScript
  • Excellent debugging and optimization skills
  • Expertise in writing well-tested code
  • Interest in opportunities to be a technical mentor for teammates

Skills

Required:GoTypeScriptRESTful APIsSQL / PostgreSQL
Nice to have:RustgRPC

Benefits

  • Medical/Rx Insurance
  • Dental Insurance
  • Vision Insurance
  • Flexible Spending Accounts
  • Commuter Spending Accounts
  • Fertility & Family Forming Benefits
  • On-demand mental health support and Employee Assistance Program
  • Global Travel Medical Insurance
  • Short and Long Term Disability Insurance
  • Life & Accident Insurance
  • 401(k) Retirement Savings Plan
  • Employee Stock Participation Plan
  • Flexible paid time off covering vacation and sick leave
  • Leave programs, including parental, pregnancy health, medical, and bereavement leave
Last updated Oct 7, 2026. Interested? Apply on the company site.

About Cloudflare

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