
AI Red Teamer (LLM Generalist) at Handshake (Seattle, WA)
Handshake· Seattle, WA·
Role details
Handshake at a glance
Handshake is the career network for the AI economy, pairing a three-sided student-employer-school job marketplace with a fast-growing AI training-data business that supplies frontier labs.
Handshake runs a three-sided marketplace connecting job seekers, employers, and college career centers, with matching, profiles, and skill-building. In 2025 it launched Handshake AI, which turns its network of educated members into a contractor workforce that produces training data and evaluations for frontier AI labs.
$434M raised · latest: Series F · $200M · Jan 2022 · $3.5B valuation · backed by Coatue Management, Valiant Peregrine Fund, Kleiner Perkins, Spark Capital
Job description
AI Red Teamer (LLM Generalist) Location: Seattle, WA (candidates must reside in the Seattle metro area or be willing to relocate prior to start) Type: Contract, 40 hours per week
About the Role
As an AI Red Teamer, you will stress-test large language models by intentionally trying to break them. Rather than checking whether an answer is correct, you will design creative, adversarial prompts that expose vulnerabilities: unsafe content, bias, broken guardrails, hallucinations, prompt injection weaknesses, and unexpected behaviors. Your work directly supports AI safety and model robustness for leading research labs. This is a generalist red teaming role. You will probe models across the full spectrum of risk categories, including content safety, CBRN (chemical, biological, radiological, nuclear), cybersecurity, persuasion and influence operations, child safety, self-harm, over-companionship, and regulatory compliance. Red teaming may span text, image, voice, and agentic model capabilities depending on project needs. This role requires creativity, curiosity, and an ability to think like an adversary while operating with strong ethical judgment. Day-to-Day Responsibilities
- Craft creative prompts and multi-turn scenarios to stress-test AI guardrails across diverse risk categories
- Discover ways around safety filters, restrictions, and defenses using jailbreak, evasion, and prompt injection techniques
- Explore edge cases to provoke disallowed, harmful, or incorrect outputs
- Evaluate and score model responses against structured harm taxonomies and severity rubrics
- Document experiments clearly, including what you tried, why you tried it, and what it revealed
- Review and refine adversarial prompts generated by other team members
- Contribute to harm taxonomy development, calibration exercises, and inter-rater reliability work
- Collaborate with engineers, data scientists, and researchers to share findings and strengthen defenses
- Work with potentially disturbing content on a regular basis (see Content Warning below)
- Stay current on jailbreaks, attack methods, and evolving model behaviors
Desired Capabilities Core
- Strong hands-on experience using multiple LLMs (ChatGPT, Claude, Gemini, open-source models, etc.)
- Intuition for crafting adversarial prompts; familiarity with jailbreak or evasion techniques is a strong plus
- Creative, adversarial problem-solving skills
- Clear and thoughtful written communication
- Strong ethical judgment and the ability to separate adversarial thinking from personal values
- Self-directed, collaborative, and comfortable in feedback-heavy environments
- Curiosity, persistence, and comfort with frequent failure in experimentation
Nice to Have
- Familiarity with Python or other scripting languages
- Experience working with LLM APIs or evaluation tooling
- Comfort with structured data annotation and rubric-based scoring
- Prior work in trust and safety, content moderation, QA, or security research
- Subject matter expertise in any high-risk domain (cybersecurity, chemistry, biology, medicine, law, finance, etc.)
You Will Thrive Here If
- You treat every model response as a hypothesis to challenge
- You can switch between creative free-association and rigorous documentation in the same session
- You go deep into unusual interests (fandoms, niche internet cultures, gaming exploits, Wikipedia rabbit holes, etc.)
- You come from a creative background: writing, visual art, improv, puzzle design, or similar
- You are energized by finding the thing nobody else thought to try
- You are genuinely passionate about AI and follow the space closely
Content Warning This role involves regular and deliberate exposure to harmful content. You will encounter and intentionally generate content involving violence, self-harm, hate speech, sexually explicit material, child safety scenarios, and other categories of harmful output as part of structured adversarial testing. Candidates must be able to engage with this material professionally and sustainably. Support resources are available.
About Handshake AI
Handshake AI partners with leading AI research labs to make models safer and more robust. Our red teaming operations help identify vulnerabilities before they reach users, contributing directly to the responsible development of frontier AI systems.
Why work at Handshake
- Culture: Values include “Students first,” “Leave nothing to chance,” “Own the outcome,” “Invent and reinvent,” and “Olympic pace.” Emphasis on ownership, urgency, and constant evolution.
- Remote/Hybrid policy: Many roles are based in San Francisco or New York, but some positions (e.g., Trust & Safety Specialist, Support Specialist) are remote in the US. Recent openings show both office and remote options.
- Benefits: Health & wellness support, financial support, time off, modern offices with meals, snacks, and social activities. Strong focus on career growth and learning.
- Career growth: Rapid headcount growth suggests ample internal mobility; roles range from engineering (ML, AI, data) to customer success, partnerships, and product management.