Sr. Researcher, Hybrid AI Security Team Lead

General Information Req # WD00106653 Career area: Research/Development Country/Region: Israel State: Tel Aviv District City: Tel Aviv-Yafo Date: Friday, October 9, 2026 Working time: Full-time Additional Locations: Israel Why Work at Lenovo We are Lenovo. We do what we say. We own what we do. We WOW our customers. Lenovo is a US$83 billion revenue global technology powerhouse, ranked #153 in the Fortune Global 500, and serving millions of customers every day in 180 markets. Focused on a bold vision to deliver Smarter Technology for All, Lenovo has built on its success as the world’s largest PC company with a full-stack portfolio of AI-enabled, AI-ready, and AI-optimized devices (PCs, workstations, smartphones, tablets), infrastructure (server, storage, edge, high performance computing and software defined infrastructure), software, solutions, and services. Lenovo’s continued investment in world-changing innovation is building a more equitable, trustworthy, and smarter future for everyone, everywhere. Lenovo is listed on the Hong Kong stock exchange under Lenovo Group Limited (HKSE: 992) (ADR: LNVGY). This transformation together with Lenovo’s world-changing innovation is building a more inclusive, trustworthy, and smarter future for everyone, everywhere. To find out more visit www.lenovo.com, and read about the latest news via our StoryHub. Description and Requirements Candidate must be willing to work onsite three days a week in our Tel-Aviv, Israel office. Lenovo Digital Trust Lab is seeking a hands-on AI Evaluation and Hardening Team Lead to join our AI Security team. This role leads the team responsible for evaluating and improving the security, privacy, safety, and reliability of AI models and applications. You will own the technical roadmap and delivery of Lenovo’s AI Evaluation Framework, combining applied research, platform engineering, and adversarial testing. Working closely with research, product, and governance teams, you will drive policy-aligned assessments and turn evaluation findings into better training data, stronger system prompts, and safer models. Job Responsibilities: Lead and develop a multidisciplinary team of engineers and researchers, balancing research, platform delivery, and operational needs. Own the Evaluation Framework roadmap, architecture, delivery, and production reliability. Advance evaluation methodologies, adversarial testing, and automated red teaming across models and agentic applications. Translate governance and product requirements into measurable assessments, scoring, and actionable reports. Drive evaluation-to-hardening feedback loops, including training data generation, model fine-tuning, and system prompt improvements. Partner with product and model teams to integrate evaluation and hardening into development and release workflows. Minimum Requirements: 7+ years of experience in AI/ML, security research, or software engineering, including 2+ years leading technical teams. BSc or MSc in computer science or a related field, or equivalent practical experience. Hands-on experience with LLMs, model evaluation, and model training or fine-tuning. Strong Python skills and experience delivering production software or research platforms. Experience designing experiments, datasets, and metrics to assess model behavior and validate improvements. Demonstrated ability to own technical roadmaps, mentor team members, and deliver across research and engineering. Strong communication skills and the ability to translate complex findings into clear priorities. Preferred Requirements Experience in one or more of the following: AI Security: Adversarial ML, AI red teaming, prompt injection, jailbreaks, or agentic security. Evaluation Methods: LLM-as-judge, benchmark design, automated adversarial testing, or multimodal evaluation. Model Hardening: Adversarial training, safety fine-tuning, preference optimization, or instruction hardening. AI Governance: Translating security, privacy, and safety requirements into technical tests and evidence. Evaluation Platforms: Scalable evaluation services, model pipeline integrations, or testing of agentic workflows. What Lenovo Can Offer You: Opportunities for career advancement and personal growth Access to a diverse range of training programs to sharpen your skills Performance-based rewards that celebrate your achievements Enjoy the best of both worlds with our hybrid setup: 3 days connecting with the team in the office and 2 days working from the comfort of your home Please note that the office location is 121 Menachem Begin Road, Tel Aviv, 61st floor, in the POINT office complex. As per our office policy, you will be required to visit the site at least 3 times a week. #DTL We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, religion, sexual orientation, gender identity, national origin, status as a veteran, and basis of disability or any federal, state, or local protected class. Additional Locations: Israel Israel AI PROCESSING NOTICE We use AI-based tools to support some of our processes (e.g. online interviews recordings and transcripts) in order to achieve better efficiency, accuracy and for our documentation purposes. AI can make mistakes, but we always make sure that the outputs are manually reviewed by a human. You can always opt-out or contact us in case of any question.