
Chalk is a data platform that provides essential building blocks for machine learning, enabling teams to build, deploy, and iterate real-time models faster with a feature engine that integrates…

Chalk is a data platform that provides essential building blocks for machine learning, enabling teams to build, deploy, and iterate real-time models faster with a feature engine that integrates…
Product: Real-time feature platform for ML/AI (managed or self-hosted) focused on low-latency inference
Founders / CEO: Marc Freed-Finnegan (Co‑Founder & CEO), Elliot Marx, Andy/Andrew Moreland
Recent financing: $50M Series A announced May 28, 2025
Headquarters: San Francisco
Production ML/AI inference and feature engineering
Software Development
$50M
Announcement states $50M Series A with participation from Triatomic Capital, General Catalyst, Unusual Ventures, and Xfund; reported $500M valuation in announcement.
“Led by Felicis with participation from Triatomic Capital, General Catalyst, Unusual Ventures, and Xfund”
About Chalk
Chalk is building the data platform that powers the future of machine learning applications. We tear down complexity, latency, and scale barriers that have traditionally constrained ML capabilities. Our platform combines Rust-speed performance with elegant tools that developers love to use. Leading companies depend on Chalk for everything from stopping fraudulent credit card swipes, verifying identities, and maximizing clean energy capture. We've recently raised a $50 million Series A , led by Felicis.
About the role
Working directly with our founders, you'll lead a team of exceptional engineers building our platform for real-time inference at scale. This role is a unique opportunity to shape technical architecture and engineering culture at a fast-growing, early-stage company. You'll collaborate with brilliant folks, including Putnam and Advent of Code winners, former Jane Street quants, and Rust compiler contributors — all dedicated to bending the curve of what's possible in ML inference.
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We're in the office 5 days a week. When unavoidable conflicts come up, we’re flexible. This is not a hybrid role.
What you will do
What we're looking for
Bonus points
Benefits
⚕️Comprehensive medical, dental, and vision insurance
🏦 Flexible Spending Account (FSA), Health Savings Account (HSA)
🦮 Expert Healthcare Guidance
💵 Retirement savings
🎄15 company holidays each year
🏖️15 days of personal time off each year
🚌 Flex Commuter Benefits
🌮 Daily lunch and dinner on Chalk
🥤Office is fully-stocked with drinks and snacks to fuel your work day.
🍽️ Staying late? Dinner is on us
🚖 Staying even later? Grab an Uber / Lyft home on Chalk
Compensation
Salary Range
$200,000 – $300,000 - Offers equity + benefits
Chalk offers early team members a generous salary + equity package based on experience and competitive benefits.
Actual compensation awarded to successful candidates will be based on several factors, including individual qualifications objectively assessed during the interview process.
Our comprehensive total package plays a major role in how we recognize individuals for the impact they will have on Chalk’s growth and us achieving our goals.
Inclusivity
Chalk is an equal opportunity employer. We value diversity and inclusion and provide reasonable accommodations to anyone in need of individualized support.