Software Engineer, Backend Developer

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.

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're in the office 5 days a week. When unavoidable conflicts come up, we’re flexible. This is not a hybrid role.

• Work directly with Chalk’s co‑founders
• Write 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

• 2+ years of professional backend software engineering experience
• 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
• Bachelor’s degree in Computer Science or equivalent

• Experience implementing data infrastructure
• Experience with distributed systems/compilers/query planners
• Experience with Rust
• Experience with developing PaaS‑like software

• 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

Salary Range: $170,000 – $280,000 – 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 but not limited to: market, location, scope of the position and individual qualifications objectively assessed during the interview process.

Chalk is an equal opportunity employer. We value diversity and inclusion and provide reasonable accommodations to anyone in need of individualized support.