Founding Marketing Lead

About MithrlWe envision a world where novel drugs and therapies reach patients in months, not years, accelerating breakthroughs that save lives. Mithrl is building the world's first commercially available AI Co-Scientist—a discovery engine that empowers life science teams to go from messy biological data to novel insights in minutes.
Scientists ask questions in natural language, and Mithrl answers with real analysis, novel targets, and patent-ready reports.
No coding.
No waiting.
No bioinformatics bottlenecks.
We're the fastest growing tech-bio startup in the Bay Area, with 12X YoY revenue growth and customers across three continents—from small biotechs to top-5 pharma.
Our product is working, our customers are winning, and the story is just beginning.
Why This Role MattersWe've built something scientists love.
Now we need the world to know. As the Founding Marketing Lead, you'll turn product strengths into market momentum.
You'll translate what makes Mithrl magical into content that resonates with scientists, sparks inbound interest, and builds credibility with the industry.
This isn't about fluff.
It's about owning and crafting narratives that drive growth.
You'll work closely with the founders, product, and GTM teams to scale storytelling, boost visibility, and support everything from customer success to deal flow.
This is a high-ownership role with room to shape the brand, grow a team, and accelerate into a VP or CMO track as the company scales.
What You'll DoBuild and own Mithrl's voice across LinkedIn, website, and thought leadership
Turn product features into sharp, compelling content that drives awareness and understanding
Create case studies, demo videos, memes, and short posts that make technical breakthroughs understandable (and shareable)
Collaborate with sales and customer teams to amplify success stories and build trust with prospects
Run light paid, SEO, or newsletter experiments to test new growth channels
Work with design to produce clean, clear, and fast marketing assets
Lay the foundation for a world-class marketing function, from messaging to content ops
What We're Looking For4–8 years of experience in product marketing, content marketing, or a similar hybrid role (bonus: at an AI, SaaS, or biotech startup)
Exceptional writing skills—tight, clear, and punchy, with a voice that makes people want to keep reading
Ability to distill technical concepts into crisp, engaging narratives
Familiarity with the biotech, AI, or life sciences ecosystem (or the ability to learn fast)
A portfolio of work that shows range: posts, articles, scripts, visuals, or anything else you've shipped
Bias for action and shipping—done is better than perfect, and iteration wins
**Curiosity, persistence, and a drive to understand how things work **High energy, strong work ethic, and a track record of getting things done **Discipline Wins: At Mithrl, the social currency is hard work and consistency.
The problems we're solving are complex and take time to bear fruit.
We value teammates who show up every day, work with focus, and bring long-term discipline to their craft What You'll LoveOwnership: You're the first marketer.
The voice, the content, the motion—you'll build it
Impact: Help the world's best scientists discover drugs faster and change lives
Speed: Our deals close fast, our product ships fast, and our growth is real
Team: Work alongside world-class AI scientists, engineers, and biotech experts
Culture: Smart, humble, fast-moving people.
No red tape, no fluff
Location: Beautiful SF office, in-person team
Benefits: Comprehensive PPO health coverage through Anthem (medical, dental, vision) + 401(k) with top-tier plans

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