AppSec Engineer
At Theori · United States; Canada; United States of America
- Security
- Full-time
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Open to Canada and the United States
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- Posted
- 5 June 2026
- First seen by us
- 3 November 2026
- Last checked
- 16 hours ago
Job description
From Theori’s job post, as they wrote it.
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.
Read the full description
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
AppSec EngineerTheori
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