The data platform for inference. Build, deploy, and iterate faster with Chalk's feature engine.
The data platform for inference. Build, deploy, and iterate faster with Chalk's feature engine.
What: Data platform for AI/ML inference with real-time feature computation and low-latency online serving
Founders: Marc Freed-Finnegan, Elliot Marx, Andy Moreland
Funding: $60M total (Seed $10M; Series A $50M)
Headcount: 83 employees
Productionizing ML inference and low-latency feature serving
Software Development
10,000,000 USD
Announced Dec 12, 2023
50,000,000 USD
Announced May 28, 2025; participation from Triatomic Capital, General Catalyst, Unusual Ventures, and Xfund; reported post-money valuation of $500M
“Led by prominent VC firms including Felicis and General Catalyst with participation from Unusual Ventures, Xfund, and Triatomic Capital”
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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, diagnosing sepsis, and maximizing clean energy capture. We've recently raised a $50 million Series A , led by Felicis.
About the role
We are hiring Software Engineers to join our team. This is an opportunity to join us in-person as an early employee and make a large impact at a high growth start-up. You will tackle challenging engineering problems with a high degree of autonomy and ownership.
We are looking for a software engineer with a strong background in systems engineering. At Chalk we are solving problems drawn from the fields of DBMS query planning & optimization, compilers, and distributed analytical data processing systems.
Chalk uses dynamic and static analysis of Python programs in order to optimize arbitrary user Python code, infers and orchestrates infrastructure implied by the structure of that code, and tracks metadata about flow of data through these systems.
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
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 but not limited to: market, location, scope of the position and 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.