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Senior Software Engineer, Security

Decagon

$250,000 - $330,000
Oct 1, 2025
San Francisco, CA, US
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Decagon is looking to solve complex security challenges within its conversational AI platform, aiming to protect sensitive customer data and defend against sophisticated threats at scale.

Requirements

  • 3+ years of software engineering experience building production systems
  • Strong CS fundamentals with genuine interest in security problems such as authentication, authorization, and cryptography, with the ability to implement them in code
  • Software engineering skills in Python, Go, Scala, Terraform, or other languages – you write clean, efficient, maintainable code
  • Experience building developer tools or automation
  • Background with static analysis tools (Semgrep, CodeQL)
  • Experience with cloud infrastructure and modern development practices (data pipelines,, infrastructure as code)
  • Comfortable working across the entire stack to solve problems

Responsibilities

  • Build automated security tools that remediate vulnerabilities without minimal intervention
  • Design and build security tooling, about 50% greenfield development, 50% improving existing systems
  • Design and collaborate with product teams to implement and review authentication systems, secrets management, and security automation
  • Create detection pipelines that scale with millions of daily AI agent interactions
  • Build security libraries and SDKs that make secure development the path of least resistance for engineering teams
  • Create automated security testing and remediation pipelines integrated into CI/CD workflows
  • Ship security improvements quickly and iteratively, measuring impact through real-world deployment

Other

  • In-office company
  • Customers are everything
  • Relentless momentum
  • Winner’s mindset
  • Stronger together