Brave - AI Security Researcher/Research Engineer

North America, EU, UK - Hybrid3w ago

In Office NA Artificial Intelligence Research Engineer Security Engineer JAX Python Training Development

Requirements

• Demonstrated experience working on Secure AI (prompt injection attacks and security guardrails) • Strong publication record in AI security, ML security, or closely related areas • A track record of shipping products and features inside a fast-moving environment • Strong coding skills in Python and familiarity with ML frameworks like PyTorch or JAX • Experience training, fine-tuning, and evaluating large language models • Deep familiarity with large language models and web agents, how they work, and how they are trained • Experience applying security principles (e.g., information flow control, access control/least privilege) • Demonstrated success in bringing clarity and ownership to ambiguous technical problems • A Ph.D. in computer science is highly preferred, but we may consider some exceptions with industry experience • Skills That Will Set You Apart from the Competition • Knowledge of AI Systems (pipelines, security evaluation, etc.) • Open source projects on security/privacy • Experience with confidential computing and ZKP/SMPC protocols • Ph.D. in computer science from a top-tier school • A strong publication record in premier systems, performance, or ML • Work experience in industry is desirable

Responsibilities

• Design and execute adversarial evaluations to uncover failure modes in LLM-powered web agents and chatbots (e.g., prompt injection, tool abuse, data exfiltration) • Analyze model behavior (including internal thoughts) to understand and forecast security risks in frontier models • Develop and prototype security-focused training and fine-tuning techniques • Augment web agents with security principles including information flow control, privilege control and contextual security • Partner with engineers and (privacy, ML, and Cryptographic) researchers to translate findings into product changes, tests, and measurable security improvements • Help define a forward-looking security strategy and policy for building and responsibly releasing web agents—advocating for user protection

Benefits

• Ability to work at an exciting and well-funded international startup headquartered in San Francisco • Cutting-edge technology, allowing you to work with state-of-the-art tools and software solutions • Competitive compensation and plenty of room for personal growth • Great international exposure and team atmosphere • We are looking to hire in London but would consider an exceptional candidate in the rest of Europe. • NO AGENCIES or RECRUITERS PLEASE - Unfortunately, we cannot work with third parties on these searches.