Research Engineer, Formal Methods
- Level
- Mid
Not stated in the posting: salary, work type, visa.
Open. First seen 6 November 2026.
About the role
Harmonic's standard text
About Harmonic
At Harmonic, we believe the future of AI depends on proof. Most AI makes its best guess. Aristotle uses formal methods and reinforcement learning to check its own reasoning and results.
AI agents can write software in seconds, but edge cases and silent bugs still get through. We're building the verification engine to find them before code ships. With support for C and Verilog, Aristotle is built for the hardware and software where failure is expensive.
Backed by some of the world’s most prominent investors, we are intentionally scaling an elite technical team.
Try Aristotle for yourself here!
About the Role
We 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 Responsibilities
- Conduct research in formal methods for verification of software, hardware and mathematical domains
- Apply formal verification techniques using Lean or similar frameworks to formally verify safety critical systems
- Develop and implement algorithms and techniques to improve the efficiency and effectiveness of formal methods for AI systems
Minimum Qualifications
- BS or MS in Computer Science, Mathematics, a related technical field, or equivalent industry experience
- Basic proficiency in python
- Proficiency and practical experience with at least one proof assistant (e.g., Lean, Coq, Isabelle, Agda) and a strong foundation in formal methods and mathematical logic
- Experience driving highly technical research projects from early concept to delivery
Preferred Qualifications
- Expert level knowledge of Lean4
- PhD in Computer Science, Mathematics, or related technical field
- Experience verifying programs in safety critical fields such as; aerospace/defense, automotive, medical, cryptography, etc
- Proven track record in research or development of programming languages
- Proven track record of high-quality research demonstrated by publications, patents, or software contributions
- Contributions to open-source projects or development of software tools in the field
Harmonic's standard text
What We Offer
- Unlimited PTO
- 401(k) matching
- 100% 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 plans
Equal Opportunity Statement
Harmonic 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.
What this role asks for
Standard for software engineering roles
Python
Common in software engineering postings at any company.
57% of this description is written for the role. The rest is Harmonic's standard text, folded away below.
Compared with Harmonic's other open jobs.
The team: Engineering
This role is one of 18 open in Engineering.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
C (16 of 18), Python (16 of 18), Verilog (16 of 18), C++ (8 of 18), AWS (6 of 18), Azure (6 of 18), GCP (6 of 18)
OTHER ROLES ON THIS TEAM
- Research Engineer, Formal Methods posted Aug 24
- Formal Verification Engineer posted Aug 13
- Formal Verification Engineer posted Aug 13
- Senior Software Engineer - Full Stack posted Aug 6
- Staff Software Engineer - Frontend Platform posted Aug 6
- Software Engineer, Product posted Aug 3
- Software Engineer, Product posted Aug 3
- Software Engineer, ML Systems posted May 7
- Software Engineer, ML Systems posted May 7
- Research Engineer, Training & Inference posted May 7
- Research Engineer, Training & Inference posted May 7
- Software Engineer, Infrastructure posted May 1
- Software Engineer, Infrastructure posted May 1
- Research Engineer posted Jul 10
- Research Engineer posted Jul 10
- Software Engineer posted Aug 28
- Software Engineer posted Aug 28
From the team and dates on Harmonic's own job board.
Other openings for this role
2 open postings for this role in Palo Alto, first posted 2 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 6 November 2026 – open (this posting)
- 2 October 2026 – open
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