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Principal Security Researcher

United States, Washington, Redmond💼 Full-time🗓 2026-08-04 → 2026-09-25

Core

Conduct hands-on vulnerability research, build security research tooling, and lead the MDASH security research team to improve AI agent security and vulnerability detection capabilities.

Role type

Principal Security Researcher (AI Security & Vulnerability Research)

Builds

MDASH agents, tools, model configurations, analysis methods, fuzzing harnesses, datasets, graders, and automation.

Domain

Cyber Security, AI Security, Software Vulnerability Research

Deliverable

production ML models | research | infrastructure

Required skills

vulnerability discovery and validation, exploitability assessment, fuzzing, static/dynamic analysis, reverse engineering, symbolic execution, taint analysis, exploit development, security tooling development, AI agent evaluation, prompt orchestration, reinforcement learning for security, secure software development lifecycle, cloud-native security, C/C++/Java/Python/JavaScript security, security benchmarking, CVE disclosure, security community contributions.

Preferred skills

experience with large-scale computing, threat modeling, anomaly detection, memory corruption, injection, authentication/authorization, cryptography, deserialization, path traversal, SSRF, business-logic flaws.

Technologies

C/C++, C#, Java, JavaScript, TypeScript, Python, SARIF, fuzzing frameworks, LLMs, reinforcement learning frameworks.

Responsibilities

Discover and validate vulnerabilities across multiple vulnerability classes and codebase architectures; translate research insights into implemented improvements for MDASH agents and tools; author trusted ground truth spanning vulnerability evidence and attack paths; drive eval-driven development by running evaluations and creating adversarial cases; build research prototypes and automation to accelerate capability improvement; provide technical leadership by shaping research direction and mentoring researchers; collaborate across research, engineering, and product teams to deliver security improvements.

Seniority

Principal, hands-on IC with strategic leadership

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