Founding Engineer (AI)

momentic· Engineering
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📍 San FranciscoFullTime💰 USD 150K–220K

About this role

At Momentic, we’re building the future of quality.

We’re building the all-in-one quality platform powered by state of the art agents to help our customers ensure quality at every stage of the SDLC.

Top engineering teams at companies like Notion, Retool and Webflow use Momentic to ship high quality product. Millions of Momentic tests are executed every single day.

Our product has a very large problem space so there’s a ton of stuff to build and take ownership of - we’d be excited to get your help as we're hiring several extremely talented software engineers across the stack.

The product

  • The AI-native automated testing platform

  • Incredibly sticky. Our customers run us on every pull request and merge and before each deploy as quality gates

  • Leagues ahead of the status quo today (think Selenium/Cypress/Playwright)

  • Check out the demo video on our website.

About us

  • We’re a lean team of 17 (ex Robinhood, Retool, WeWork, Qualtrics, Assembled)

  • Located in-person San Francisco (650 5th St.)

  • Recent Series A raise of $15M led by Standard Capital, with participation from existing investors - Y Combinator, FCVC, and Transpose Platform.

You’re perfect for this role if…

  • You enjoy solving hard problems that have both product and technical ambiguity

  • You have strong engineering fundamentals, code efficiently, and you know what you're great at and what you're less great at

  • You dislike meetings and would much rather focus your time on building, being productive, and shipping code

  • You thrive when you have autonomy, own as many of the details as possible, and project manage your own work

  • You're in SF or you're willing to relocate, you love working in-person, and you're serious about joining us to build a culture we'll all love

Must-have qualifications

  • Experience with LLM performance tuning, including prompt engineering and context management strategies

  • Experience with LLM evaluations and observability

  • Experience integrating LLMs into real-world applications using a modern tech stack (Python, TypeScript, etc.)

  • Familiarity and experience with supervised fine-tuning (SFT) and/or reinforcement learning fine tuning (RLFT) on platforms such as fireworks, Together AI, or Baseten

  • Familiarity with evaluation dataset engineering, prompt engineering, LLM as a judge verifiers, and RL environments

  • 3+ years of experience

Nice to have

  • Experience with supervised or reinforced fine-tuning

  • Experience with classical machine learning techniques such as template matching, bounding box detection, and OCR

  • Experience running statistical experiments


Our stack

React, TypeScript, Next.js, Node.js, PostgreSQL, Google Cloud, Kubernetes

Benefits

  • Competitive Medical, Vision, Dental insurance

  • 401K

  • Unlimited PTO

  • Offsites and events (French Laundry last quarter)

  • Fully stocked kitchen (Unlimited supply of sparkling water!)

Sponsorship

We can sponsor TN, E-3, or J-1 Visas. We can't sponsor/transfer H1B Visas or Green Cards (I-140) at this time.

Frequently Asked Questions

What is the salary for the Founding Engineer (AI) role at momentic?
The listed salary for this Founding Engineer (AI) position at momentic is USD 150K–220K. This is an FullTime role.
Where is the Founding Engineer (AI) position at momentic located?
This Founding Engineer (AI) role at momentic is based in San Francisco. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Founding Engineer (AI) role at momentic full-time or part-time?
This is listed as a FullTime position. It is posted as a Founding Engineer (AI) role in the Engineering department at momentic.
Which team or department does the Founding Engineer (AI) at momentic belong to?
This Founding Engineer (AI) position is part of the Engineering department at momentic. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Founding Engineer (AI) position at momentic?
Click the "Apply Now" button on this page. You will be redirected to momentic's official application portal hosted on ashby where you can submit your application directly.
When was the Founding Engineer (AI) job at momentic posted?
This Founding Engineer (AI) position at momentic was posted on Aug 10, 2026. Apply as soon as possible — early applications are often reviewed first.
Founding Engineer (AI)
momentic · 💰 USD 150K–220K
Apply for this role ↗

You'll be redirected to momentic's official application page on Ashby ATS.