About Chalk

Chalk (chalk.ai) is the platform for production AI. Trusted by enterprises including Whatnot, Grindr, Mission Lane, Turo, and Apartment List, Chalk brings together context, runtime, and learning for agents and models. Chalk’s Context Engine delivers live context by querying data across warehouses, databases, streams, and APIs, straight from the source. Chalk’s runtime powers agents and models with infrastructure and governed access to LLMs and tools. Together, these capabilities help teams build AI that understands their business, continuously improves, and runs reliably in production. We've recently raised a $50 million Series A, led by Felicis. Learn more at chalk.ai.

About the role

This position is scheduled to start in Spring 2027.

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.

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

Work directly with Chalk’s co-founders

Write C++, Python and Rust

Design, implement, ship, and maintain significant components of our query planning and execution engine

Iterate rapidly to improve Chalk’s platform in response to customer needs

What we’re looking for

Graduation date in Fall 2026 or Spring 2027 with a Bachelor's degree (or equivalent) in a relevant field (Computer Science, EECS)

Strong working knowledge of computer science fundamentals. We’re not looking for experience from drilling leet code – we need folks who are comfortable building and maintaining real systems

Comfort with leading development of new components of existing systems, and with taking ownership of existing software

Track record of learning new concepts quickly

Ability to work autonomously & to make pragmatic tradeoffs with an eye towards business outcomes

Strong communication skills

Bonus points

Experience implementing data infrastructure

Experience with distributed systems/compilers/query planners

Experience with Rust

Experience with developing PaaS-like software