Research Engineer

Harmonic Research EngineerAt Harmonic, we are building a mathematical reasoning engine that operates with absolute precision. While most AI makes maximum-likelihood guesses, Harmonic's Aristotle uses Lean4 and reinforcement learning to verify its reasoning and results. Following our Gold Medal-level performance on the 2025 International Math Olympiad (IMO) and the successful resolution of long-standing open problems, we are proving that AI can master the most rigorous domains of human thought. Backed by some of the world's most prominent investors, we are intentionally scaling an elite technical team.About the RoleWe are seeking a highly motivated and skilled Research Engineer to join our Formal Methods team. The initial focus of this position will be on pushing the limits of AI based theorem proving for verification of software and/or hardware. The successful candidate will play a key role in developing new approaches to express and prove important software and hardware properties, work with AI researchers to train and develop AI systems to reliably check them.Key ResponsibilitiesConduct research in formal methods for verification of software, hardware and mathematical domainsApply formal verification techniques using Lean or similar frameworks to formally verify safety critical systemsDevelop and implement algorithms and techniques to improve the efficiency and effectiveness of formal methods for AI systemsMinimum QualificationsBS or MS in Computer Science, Mathematics, a related technical field, or equivalent industry experienceBasic proficiency in pythonProficiency and practical experience with at least one proof assistant (e.g., Lean, Coq, Isabelle, Agda) and a strong foundation in formal methods and mathematical logicExperience driving highly technical research projects from early concept to deliveryPreferred QualificationsExpert level knowledge of Lean4PhD in Computer Science, Mathematics, or related technical fieldExperience verifying programs in safety critical fields such as; aerospace/defense, automotive, medical, cryptography, etcProven track record in research or development of programming languagesProven track record of high-quality research demonstrated by publications, patents, or software contributionsContributions to open-source projects or development of software tools in the fieldWhat We OfferUnlimited PTO401(k) matching100% employer-paid health, vision, and dental benefits for employees and 50% coverage for dependents. Harmonic offers varied health coverage options to select what is best for you and your family.Health Savings Account (HSA) available for qualifying health plansEqual Opportunity StatementHarmonic is committed to diversity and inclusivity in the workplace. We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or any other legally protected status.