Software Engineer

⚡ We're winning quickly: Backed by Accel, by the same partner who led the first round for Scale, Vercel, and Sentry, plus Sheryl Sandberg's fund SBVP and Neo. We launched in February 2026 (announced here), and are already powering pages that generate hundreds of thousands of dollars in pipeline + featured on CNBC.

⚡ Recognized names that turn heads: We've earned the trust of customers like Cognition, Glean, Langchain, Tandem, 11x, + more we don't publicly reference. (Our gong has been put to great use!)

Flint is the agentic platform that ships pages from your brand and ad campaigns. AI doesn't replace marketers. 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.

Sandberg instantly understood Flint's vision. "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. "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.

"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. Amazing to watch." - Dan Levine, Accel

Flint is led by co-founders Michelle Lim, Engineer #1 turned Head of Growth and Product at Warp, and Max Levenson, engineering leadership at autonomous vehicle startup Nuro, then Engineer #2 at Vooma (YCS23).

Every single member of the Flint team has been a founding engineer / founder. Early stage best practices are in our team's DNA. 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. After all, we've done it before. We are alums of Netflix, Scale, and Shepherd (YC W21), and work together in-person out of historic Jackson Square.

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

As Software Engineer, you’ll build the systems that power AI-native websites, shaping the technical architecture and culture of a company defining the next era of the internet.

• Build agentic systems that design and launch web experiences, leveraging cutting-edge AI techniques.

• Develop and maintain Flint’s core application across frontend, backend, and infrastructure.

• Design systems with robust evals, observability, and testing to push the frontier of AI reliability.

• You are a product-first engineer who cares deeply about user experience.

• You have strong full-stack engineering experience and are excited to work across the stack.

• You regularly use the latest AI-forward developer tools (Claude Code, Cursor, Copilot, etc).

• You take ownership from problem to solution, learning whatever you need to succeed.

• You love building MVPs, testing them with users, and iterating quickly.

• Have used website builders (e.g. Webflow or Framer) or CMS platforms (Sanity, Contentful, Strapi).

• You have built an AI product before

• Experience working in early-stage startups or small teams

• TechCrunch - Oct 2025

• Business Insider - Nov 2025

• Pragmatic Engineer podcast - Dec 2025

• CNBC - Dec 2025

• Follow us on Linkedin and X

We are an intensely creative team. After work, we are (avid) readers, photographers, acapella singers, film critics (who don't hold back), bakers, yoga teachers, interior designers, and more.

Catch us in action at our launch party, rock climbing, celebrating birthdays, hosting trivia nights, going for pilates and more.