Security Engineer II, AI/ML Security

Who We Are
Founded in 2012 by 3 expert hackers with no investment capital, Trail of Bits is the premier place for security experts to boldly advance security and address technology's newest and most challenging risks. It has helped secure some of the world's most targeted organizations and devices. Our combination of novel research with practical solutions reduces the security risks that our clients face from emerging technologies. Our work helps drive the security industry and the public understanding of the technology underlying our world.
Cybersecurity preparedness is a moving target. Companies like ours are the tip of the spear in the fight against attackers. Our research-based and custom-engineering approach ensures that our client's capabilities are at the forefront of what's available. For companies and technologies that live and die by their security, a proactive, tailored approach is required to keep one step ahead of attackers.
Democratizing security information is essential. As part of our business, we provide ongoing informational support through blogs, whitepapers, newsletters, meetups, and open-source tools. The more the community understands security, the more they'll understand why a company like ours is so unique and valuable.
Role
Trail of Bits seeks a Security Engineer II, AI/ML Security within our growing Software Assurance team. You will conduct comprehensive security assessments of machine learning and large language model systems, examining everything from examining software across the AI/ML supply chain and stack such as LLM web applications, training data pipelines, neural network architectures, AI/ML frameworks, and CUDA-based libraries. You will identify and analyze novel attack vectors and vulnerabilities specific to MLops environments, focusing on potential failure modes, vectors for model performance degradation, and unauthorized access to sensitive data and model parameters.
In addition to performing technical assessments, you will contribute to threat modeling, evaluating AI adoption risk frameworks, and delivering specialized training to clients on AI security concepts, including AI/ML-specific attacks, AI safety, and pipeline threats.
What You'll Achieve

• AI/ML Security Assessment: Conduct comprehensive security assessments of AI/ML pipelines, tools, and frameworks. Examine vulnerabilities in model architectures, training processes, and deployment infrastructure while developing mitigation strategies.
• AI/ML Security Controls: Design and develop security frameworks and tools specifically for AI/ML systems, including model robustness testing, data poisoning detection, and protection against adversarial attacks.
• Application Security Assessment: Conduct security assessments of client code bases using a combination of static analysis, dynamic testing, and manual code review, identifying vulnerabilities and developing mitigation strategies, with a focus on findings at the intersection of application security and AI/ML security.
• AI/ML Threat Modeling: Conduct threat modeling and risk assessments to proactively identify potential risks for clients and develop mitigation strategies for future prevention.
• Client Engagement: Work with leading industry teams to review system code and architecture, and help assure their products through system analysis and modeling.
• AI Policy & Compliance Initiatives: Develop and contribute to AI/ML regulatory frameworks, establishing assurance methods and auditing processes for mission-critical AI applications while ensuring alignment with emerging industry standards and safety requirements.

What You'll Bring

• AI/ML Security Expertise: Extensive experience in AI/ML security, with demonstrated ability to identify and mitigate ML-specific vulnerabilities across complex systems.
• Technical AI/ML Knowledge: Deep understanding of AI/ML architectures, frameworks (PyTorch, Jax, LangChain, RAG systems, etc.), and MLOps practices, combined with robust security engineering expertise.
• Assessment Experience: Have conducted technical security assessments of AI/ML systems and implemented effective security measures.
• Tool Proficiency: Strong background in AI/ML development languages (Python, C, C++, Typescript, JavaScript, Rust) and security testing frameworks, with experience in developing and applying ML-specific security tools.
• Communication Skills: Ability to effectively communicate complex AI/ML security concepts to diverse stakeholders and deliver clear, actionable recommendations.

The base salary for this full-time position ranges from $165,000 to $195,000, excluding benefits and potential bonuses. Various factors influence our salary ranges, including the specific role, level of seniority, geographic location, and the nature of the employment contract. An individual's specific work location, unique skills, experience, and relevant educational background will determine the final offer within this range. The presented salary range encompasses the starting salaries for all U.S. locations. For a precise salary estimate tailored to your preferred location, please discuss it with your recruiter during the hiring process.
Trail of Bits, Inc. participates in E-Verify, the US federal electronic employment eligibility verification program. Learn more.
Benefits
Benefits, Perks & Wellness
Trail of Bits is our people, not a place. With over 100+ employees working from every time zone across the globe, our remote-first culture is built on autonomy and trust (and backed by smile-worthy benefits) for full-time employees:
Empowered Living:

• Competitive salary complemented by performance-based bonuses.
• Fully company-paid insurance packages, including health, dental, vision, disability, and life.
• A solid 401(k) plan with a 5% match of your base salary.
• 20 days of paid vacation with flexibility for more, adhering to jurisdictional regulations.

Nurturing New Beginnings:

• 4 months of parental leave to cherish the arrival of new family members.
• Our team is global and remote-first. However, if you are interested in moving to NYC, we offer $5,000 in relocation assistance to support your transition.

Work & Life Enrichment:

• $1,000 Working-from-Home stipend to create a comfortable and productive home office.
• Annual $750 Learning & Development stipend for continuous personal and professional growth.
• Company-sponsored all-team celebrations, including travel and accommodation, to foster community and recognize achievements.

Community Impact:

• Philanthropic contribution matching up to $2,000 annually.

Dedication to Diversity, Equity, Inclusion & Belonging (DEIB)
Trail of Bits is a community of innovators, risk-takers, and trailblazers who celebrate individual differences and recognize that unique perspectives make us stronger, smarter, and more successful. We actively seeks applicants who can bring a variety of experiences, perspectives, and backgrounds to the team. We provide equal employment opportunities to all employees and applicants for employment without regard to race, color, ancestry, national origin, gender, sex, pregnancy, pregnancy-related condition, sexual orientation, marital status, religion, age, disability, qualified handicap, gender identity, results of genetic testing, military status, veteran status, or any other characteristic protected by applicable law. Our team values diversity in experience and backgrounds-we do our best work when we create space for different voices and perspectives. Whatever unique experiences or skill sets you bring, we look forward to learning from each other.