Frontend Software Engineer
AI-assistedOn-siteSeniorFull-time5+ yrsUSD 200K-280K
claude codecursorTypeScriptRustReactPostgresAWS
4 open roles
Kepler builds an agent harness, an infrastructure layer that wraps around AI models to make their outputs reliable, traceable, and verifiable through deterministic data pipelines and provenance tracking. The company started with a finance research product for analysts to pull comparables, build models, and research filings, with plans to expand into other high-stakes industries like chemicals, legal, and healthcare. Founded by a team with 40+ years combined experience at Palantir and backed by investors including founders of OpenAI, MotherDuck, dbt Labs, and Square, the company is about a dozen people today based in New York and expects to grow several times over the next two years.