
We are forging the worlds most advanced mathematical reasoning engine
Founded: 2023
Headquarters: Palo Alto, United States
Core product: Mathematical/logic-first AI reasoning engine (Aristotle)
Total employees (reported): 38
Notable investors: Kleiner Perkins, Paradigm, Sequoia, Index, Ribbit, Emerson Collective
Reported total funding: USD 295,000,000
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Verifiable AI reasoning for high-confidence and safety-critical use cases
2023
Artificial Intelligence
Company announcements reference a Series A on Sept 23, 2024.
USD 100,000,000
Reported Series B led by Kleiner Perkins at an $875M post‑money valuation.
“Participation by Ribbit Capital, Sequoia Capital, Kleiner Perkins, Index Ventures, Paradigm and Emerson Collective reported in company announcements and press.”
About The Company Harmonic is a startup building the world’s most advanced mathematical reasoning engine, recently achieving Gold Medal-level performance on the 2025 International Math Olympiad (IMO). Backed by some of the world's most prominent investors, we are intentionally scaling our elite technical team.
About The Role We are looking for a talented Frontend Software Engineer to drive the early development of Harmonic’s web products and marketing materials. In this role, you will be instrumental in translating cutting-edge Mathematical Superintelligence into delightful and useful consumer experiences, as well as shape how Harmonic tells its story to the world. We are looking for a driven self-starter with a proven track record of shipping ambitious, impactful, and user-centric products from inception, specifically demonstrating expertise in crafting performant, scalable, and intuitive frontend web applications.
Key Responsibilities
What We're Looking For Deep Web Expertise: A proven track record of shipping ambitious and user-centric web applications from concept to launch.
Product-Minded Engineer: A strong sense of user empathy and product intuition, with a passion for building experiences that are both powerful and delightful.
Ownership and Ambiguity: The ability to operate independently and effectively in a fast-paced, collaborative, and highly ambiguous environment, consistently delivering results.
Cross-Functional Excellence: Superb communication skills and a history of working effectively with product, design, and other engineering teams to achieve shared goals.
Minimum Qualifications
Preferred Qualifications
What We Offer
Visit our company blog to learn more about what we are working on! 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.