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Research Engineer / Software Engineer (backend)

United States 150000.00 - 350000.00 USD / Year · Job Posted February 21, 2026
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Job Description

Build the future of offensive security with XBOW. Attackers are already using AI to move faster than defenders can react—we’re creating the platform that puts security ahead in the arms race. Our AI-powered system autonomously discovers, validates, and even exploits vulnerabilities, giving organizations proof-backed results in hours instead of weeks.

Job Responsibility

  • Design and build distributed backend systems that scale reliably and securely
  • Work in TypeScript, Kotlin and Go
  • Deploy and operate services in AWS and other cloud providers
  • Own problems end-to-end—from design through deployment to production support
  • Navigate ambiguity and help define how we build as much as what we build
  • Collaborate closely with teammates across the stack, including AI researchers, Security researchers and frontend engineers

Requirements

  • Experience building and operating scalable, distributed systems
  • Comfort working in a fast-moving, early-stage environment
  • Strong problem-solving skills and the ability to work with incomplete information
  • Familiarity with AWS or similar cloud platforms
  • Comfort working with infrastructure as code (e.g., Terraform or CDK)
  • Eager to learn new tools, languages, and technologies as needed
  • A thoughtful communicator who values clarity and simplicity

Nice to have

  • Experience with event-driven architectures, message queues, or async workflows
  • Experience designing and optimizing relational databases (we use Postgres)
  • Background in systems programming, networking, or performance tuning
  • Experience with hybrid deployments (cloud + on-prem)
  • Experience working in an early stage startup
  • Prior experience building security products or products for technical users

What we offer

  • Competitive salary and a generous equity package
  • Career growth
  • Meaningful work
  • Remote work with support to travel to collaborate with colleagues in person

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