Chalk provides a real-time data platform for ML and LLM inference that compiles Python feature definitions into high-performance Rust/C++ pipelines, unifying feature store, vector storage, monitoring, and experiment branches.
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 https://www.reuters.com/business/databricks-competitor-chalk-raises-50-million-series-2025-05-28/, led by Felicis. About the role We are hiring experienced Frontend Software Engineers to join our team. In this role, you will be responsible for defining strong front-end architecture patterns, leading development of well abstracted reusable components, and collaborating across teams to increase developer velocity. You will excel in this role if you’re an experienced engineer with deep front-end expertise who can collaborate effectively across multiple teams and functions to deliver results. 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 software engineers who are comfortable solving business problems across all layers of the software stack, with a specific focus on frontend engineering. At Chalk, we build reliable data processing systems that can operate performantly at scale with a laser-focus on developer experience. We need engineers who can build world-class user experiences across web and command-line surfaces, while also understanding and contributing to a codebase that contains ideas from compilers, query planners, and distributed 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 to productionize our first iteration - Write TypeScript (React), Python, Go - Drive frontend architecture discussions and technical breakdowns. - Expose the functionality of our core platform to data scientist and machine learning end-users in their home environments - Iterate rapidly to improve Chalk’s platform in response to customer needs What we’re looking for - 4+ years experience of professional software engineering experience - 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 applications - You have a deep technical understanding of frontend technologies, patterns, and best practices. You have a firm understanding of backend systems which enable you to collaborate on problems that span the entire stack - An eye for high-quality UX - 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 Bonus points - Experience implementing data infrastructure - Experience working with developer tools - Experience with applied machine learning or data analytics - Experience with Go