Founding Marketer
TypeSafe AI · San Francisco
About TypeSafe
We’re building prod, not god. TypeSafe is an AI lab pushing frontier model intelligence in a new direction, starting with System One Models. We combine the reasoning of LLMs with the reliability of code, for truly trustworthy AI. Our first model, Jev, launched in September 2026.
While others chase leaderboards, we’re rebuilding the LLM stack from first principles to make models smarter and also dependable enough to run in production. We’re a small, fast team backed by an $870M Series A led by a16z. Made in SF, with love. Come join the frontier.
About the role
You'll own how TypeSafe shows up in the world, from the story we tell to how developers and enterprises discover, adopt, and champion what we build. There's no team to inherit and no playbook to run. You'll work at all altitudes — setting the high-level strategy and then doing the tactical work yourself, from positioning down to the copy.
What you'll own
Narrative and content: shape the company blog, thought pieces, and our unique perspective on AI, and position our founders and researchers as leading voices
Product marketing: define our category and translate deeply technical capabilities into messaging that developers resonate with
Brand and channels: own our company brand, website, and social cadence across X and LinkedIn
Launches and announcements: coordinate product releases and announcements from press to podcasts to events
Demand generation: build developer and enterprise interest to build our pipeline
We are looking for people who
Have built a marketing function from zero at a start-up and can both set strategy and execute it
Are tactically broad — can own narrative, launches, demand, and growth experiments across channels from social to SEO to email
Have 5+ years of professional expertise in high-performing teams, including under shifting and ambiguous environments
Write exceptionally well — clear, technical, and fast
Have taste: know what's credible, what's hype, and what's premature
Are fluent in the AI industry, leverage tools yourself, and can credibly talk models and APIs with our engineers and researchers
Show complete ownership — think at the level of goals, not tasks or tickets
Solve problems from both first-principles reasoning and a reservoir of lived experience
Care deeply about our mission and are driven to translate it into real-world impact
Life at TypeSafe
We’re a small, flat, close-knit team working to make intelligence dependable enough to become part of everyday software. We work fully in person from our San Francisco office near Embarcadero station. We love what we do and care deeply about the work.
We strive for excellence and craftsmanship and won’t stop until we get there. When the team wins, we all win, and we enjoy collaborating and inspiring each other to grow—as a team and as individuals.
We value emotional honesty, kindness, and bringing your whole self to work. We build machines; we don’t try to be machines.
We want TypeSafe to be the place where you do the most impactful work of your career and help define our future as a company.
We provide
100% covered health insurance
Daily lunch and dinner
Visa sponsorships
401K plans