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AppSec Engineer

TheoriUnited States🇺🇸United States

Why this role stands out

Elevate your career at Theori by joining a pioneering team at the intersection of AI-driven tooling and high-stakes security research, all while enjoying the freedom of a fully remote work environment. This role is perfect for a technical problem-solver who thinks like an attacker and wants to make a tangible impact by validating critical vulnerabilities and shaping the future of security technology. Apply today to sharpen your expertise and contribute to groundbreaking work in a culture that values deep technical mastery.

Quick overview

SeniorityMid Senior
Employment typeFull Time
Work modeRemote
LocationUnited States, United States

Job description

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

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