AppSec Engineer

Full-timeRemote
United States · Canadavia Theori CareersPosted Jun 5, 2026
Match with my CV

Technical skills

Cybersecurity

About this role

We're looking for a hands-on Cyber Security Engineer to sit at the intersection of AI-driven tooling and real-world security research. In this role, you'll own the end-to-end triage and validation lifecycle for vulnerability reports generated by our AI-powered static analysis platform, separating true positives from noise, writing proof-of-concept exploits, and reporting vulnerabilities upstream to the appropriate vendor.

This is a deeply technical role built for someone who thinks like an attacker, thrives in ambiguous environments, and has a track record of finding and exploiting vulnerabilities.

What You'll Do

  • Triage and validate vulnerability reports produced by our AI static analysis tool, verifying severity, exploitability, and business impact
  • Write proof-of-concept exploits for critical vulnerabilities to confirm true positives
  • Analyze false positives to identify patterns and provide structured feedback to engineering
  • Author detailed vulnerability reports that will be submitted to upstream vendors and open source projects
  • What We're Looking For
  • Experience in a security engineering, vulnerability research, or penetration testing role
  • Demonstrated CTF experience through participation in competitive CTFs (e.g. DEFCON, PlaidCTF) with writeups
  • Hands-on real-world vulnerability research and exploitation experience is preferred
  • Proficiency reading and auditing code across multiple programming languages
  • Prior bug bounty participation is preferred
  • Based in US or Canada

Before you apply

  • 1Which parts of your CV prove experience with Cybersecurity?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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