engineering
Posted Dec 23, 2025Software Engineer
at Flint
San Francisco, United StatesOn-site
Requirements
- We launched in February 2026 (announced here https://www.linkedin.com/posts/michlimlim_flint-ai-builds-you-on-brand-pages-for-every-ugcPost-7432095475916230656-gUBS/?utm_source=social_share_send&utm_medium=member_desktop_web&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg), and are already powering pages that generate hundreds of thousands of dollars in pipeline + featured on CNBC https://www.youtube.com/watch?v=h84aSoFawQE&t=1259s.
- ⚡ Recognized names that turn heads: We've earned the trust of customers like Cognition, Glean, Langchain, Tandem, 11x, + more we don't publicly reference.
- AI doesn't replace marketers.
- "I was sharing how it took (me) five teams three months to build one A/B test just to increase conversion by 10% on our Google ad," Lim said.
- THE TEAM "One of the most talent-dense AI startups... each member of the early Flint team has a track record, and as a team, they perform like athletes.
- THE PRODUCT Companies have used Flint to hit goals like… - Ranking #1 on AI answer engines like ChatGPT, Perplexity and Google AI Overview - Lifting ad conversion rates - Generating hundreds of thousands of dollars in pipeline revenue THE ROLE As a Software Engineer at Flint, you'll build the systems behind AI-native websites: agents that design and ship real web experiences, the code-generation and editing infrastructure under them, and the product that ties it together.
- WHAT YOU'LL OWN - Agentic systems that design and launch web experiences using current-best applied-AI techniques. - Flint's core application across frontend, backend, and infrastructure. - Evals, observability, and testing for AI systems, the work that makes generated output reliable. - Rapid prototyping with users, and turning what you learn into durable features. - Architecture calls that stick. - Projects end-to-end, from user-tested prototypes to the production systems they become.
- WE’VE ALREADY TACKLED PROBLEMS SUCH AS: - SOTA applied AI for frontend code generation and design systems - Novel UX patterns for AI-first software - Distributed multiplayer systems for collaborative editing - AST parsing and manipulation for generative code - …and there’s much more ahead.
- experience and want to work across the whole stack. - You use the latest AI dev tools regularly (Claude Code, Cursor, Copilot, etc.). - You take ownership from problem to solution, learning whatever you need along the way. - You love building MVPs, testing them with users, and iterating fast.
Benefits
- THE VISION Sandberg instantly understood Flint's vision.
- Because of that, our team knows how to catalyze hockey stick growth, but just as critically, how to navigate it sustainably to create $XB valued companies.
- BONUS - You've used website builders (Webflow, Framer) or CMS platforms (Sanity, Contentful, Strapi). - You've shipped an LLM feature to real users and dealt with the part where it's non-deterministic and sometimes wrong. - You've worked at an early-stage startup or on a small team.
- benefits 🍽 Lunch and a fully stocked snack bar at the office, incl.
- Cometeer coffee pods 🦮 Dog friendly 🤝 Competitive salary + equity [we stand by care for our employees https://www.linkedin.com/posts/michlimlim_my-buddy-prem-nair-was-engineer-2-at-windsurf-activity-7355686617514188800-FihO/?utm_source=share&utm_medium=member_desktop&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg] ✨ More benefits coming very soon.
Contact
- https://www.linkedin.com/posts/michlimlim_help-me-settle-a-debate-with-laura-lee-activity-7399163641784332288-O9Yl?utm_source=share&utm_medium=member_desktop&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg) ABOUT FLINT Flint is the agentic platform that ships pages from your brand and ad campaigns.
- Amazing to watch." - Dan Levine, Accel Flint is led by co-founders Michelle Lim https://www.linkedin.com/in/michlimlim/, Engineer #1 turned Head of Growth and Product at Warp, and Max Levenson https://www.linkedin.com/in/max-levenson-a6102199/, engineering leadership at autonomous vehicle startup Nuro, then Engineer #2 at Vooma (YCS23).
- YOU'RE A FIT IF - You are a product-first engineer https://thezbook.com/code-first-vs-product-first who cares deeply about user experience. - You have strong full-stack
- FLINT IN THE PRESS - TechCrunch https://techcrunch.com/2025/10/14/sheryl-sandberg-backed-flint-wants-to-use-ai-to-autonomously-build-and-update-websites/ - Oct 2025 - Business Insider https://www.linkedin.com/posts/michlimlim_talked-to-business-insider-about-my-journey-activity-7391519642181193728-YpNL?utm_source=share&utm_medium=member_desktop&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg - Nov 2025 - Pragmatic Engineer podcast
- Catch us in action at our launch party https://www.linkedin.com/posts/michlimlim_behind-every-startup-launch-is-a-community-activity-7384241772484308993-ouxc?utm_source=share&utm_medium=member_desktop&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg, rock climbing https://www.linkedin.com/posts/michlimlim_were-getting-ready-to-climb-out-of-stealth-activity-7381038576362336256-uGLQ?utm_source=share&utm_medium=member_desktop&rcm=ACoAAB-lEvQBDMC4WORPKPe-emksA3DMuDZNghg, celebrating birthdays
Additional details
- It removes the work that should never have been theirs: building a one-off landing page for every keyword, every campaign change, every A/B test, then waiting on design and engineering to do it.
- Today we deliver on-brand pages on your own domain in minutes, with no rebuilds and no engineers.
- We're backed by Accel, Sheryl Sandberg (former Meta COO)'s venture fund SBVP, and Neo.
- "And then she stopped me, [and] said, 'Michelle, it was 140 people at Meta who had to do this'." — TechCrunch Imagine a website that builds new pages, tests creative, and optimizes performance in response to real-world signals: competitive shifts, user behavior, trending search queries, the way an autonomous vehicle responds to road conditions and traffic.
- The marketer still owns the work that compounds and the work that requires taste: strategy, audience, creative direction, brand judgment.
- Flint takes the manual production off their plate so they get those hours back.
- Every single member of the Flint team has been a founding engineer / founder.
- We are alums of Netflix, Scale, and Shepherd (YC W21), and work together in-person out of historic Jackson Square.
- It's a broad role by design: we're small, so you'll move across frontend, backend, and the agentic systems depending on where the hard problem is that week.
- After work, we are (avid) readers, photographers, acapella singers, film critics (who don't hold back), bakers, yoga teachers, interior designers, and more.