Senior Security Researcher

Snyk; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Snyk Ltd. is seeking a Research Engineer to probe AI and autonomous agent systems, develop attack tooling, harnesses, and reproducible evaluations. The role drives measurable improvements in AI security and strengthens Snyk's offensive security offerings.

You will focus on AI red teaming, offensive security testing, LLM fundamentals, harness engineering, and experimental design, using Python, APIs, containers, and browser automation to build maintainable research tools.

Qualifications

• Experience in AI red teaming, prompt injections, jailbreaks, and data leakage.
• Strong Python skills and experience with APIs and tooling.
• Background in offensive security testing of web/API workloads.
• Familiarity with LLM behavior, context management and tool calling.
• Experience building reproducible research tooling and harnesses.

Responsibilities

• Research and exploit weaknesses in LLM applications and autonomous agents.
• Build attack tooling, agent harnesses, and reproducible evaluations.
• Improve Snyk's offensive security product offering through rigorous assessments.
• Collaborate with engineering to integrate findings into products.

Skills

AI red teaming

Offensive security

LLM fundamentals

Harness engineering

Agent security

Evals and benchmarks

Experimental design

Research engineering

Python

APIs

Containers

Browser automation

Tools

Python

APIs

Containers

Browser automation

Job description

Unleash AI Innovators, Securely

Software is being rewritten in real time. AI agents are starting to write more code than humans do, at a speed no security team has ever had to match, and that single shift is opening up the biggest opportunity our industry has seen in a decade. We’re not bracing for it, we’re building the company that owns it.

Snyk is building the next generation security platform where security isn’t a set of tools people operate. It’s a team of security agents working alongside your engineers, finding, fixing, and governing risk at the speed software is now built. These agents work alongside both the company build and the agents they adopt. Security stops being a queue of work waiting for people, and becomes a coordinated workforce companies direct and trust.

Research and exploit weaknesses in LLM applications and autonomous agents. Build attack tooling, agent harnesses, and reproducible evaluations that turn offensive research into measurable improvements in AI security and improve on Snyk’s offensive security product offering.

Looking for candidates with experience in the following areas:

• AI red teaming: Prompt injection, jailbreaks, data leakage, tool abuse, and multi-step adversarial attacks.

• Offensive security: Web/API penetration testing, authentication and authorization flaws, business logic attacks, and exploit chaining.

• LLM fundamentals: Model behavior and limitations, inference, context management, retrieval, and tool calling.

• Harness engineering: Agent orchestration, tool integrations, state management, sandboxed execution, and reproducible runs.

• Agent security: Trust boundaries, permissions, memory poisoning, scope enforcement, and guardrail bypass testing.

• Evals and benchmarks: Realistic attack scenarios, ground truth, reliable graders, dataset quality, and regression suites.

• Experimental design: Controlled comparisons, repeated trials, attack success rates, precision/recall, and cost/performance measurement.

• Research engineering: Strong Python, APIs, containers, browser automation, and building maintainable research tools.

• Failure analysis: Inspecting prompts, traces, and tool outputs to distinguish model, harness, and environment failures.

• Exploit validation and reporting: Reproducible proofs of concept, demonstrated impact, false-positive analysis, and actionable remediation.

About Snyk

Snyk is committed to creating an inclusive and engaging environment where our employees can thrive as we rally behind our common mission to make the digital world a safer place. From Snyk employee resource groups, to global benefits that help our employees prioritize their health, wellness, financial security, and a work/life blend, we aim to support our employees along their entire journeys here at Snyk.

Equal Employment Opportunity

Snyk is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.