Software Engineer (TypeScript/JavaScript)

Databento•San Francisco, NY

1d•Remote

About The Position

The financial industry is growing at a record pace, but our data providers are still stuck in the past — with cumbersome onboarding processes, complicated APIs, slow infrastructure, and expensive licensing costs. Databento is the market data platform for modern finance. The company provides real-time and historical data across futures, options, and equities through a unified API. By owning the entire market data stack end-to-end, Databento is the first platform of its kind to combine the performance and reliability demanded by the world's leading trading firms with a dramatically simpler developer experience. Our team includes alumni of Two Sigma, Citadel Securities, Flow Traders, Tower Research, PDT Partners, SIG, and other top quantitative firms. We're looking for a midlevel or senior IC to join our Platform/API engineering team. You'll be responsible for building, maintaining, and promoting our JavaScript client library, working closely with our design team to bring production-ready interfaces to life. This role is primarily focused on TypeScript/JavaScript, with some full-stack/Python work as well.

Requirements

TypeScript/JavaScript focus
Mid-level or Senior Individual Contributor (IC)
Experience with N-API, node-addon-api, or Wasm for integrating native libraries
Experience with React, Redux, Vite, Web Workers, and WebSockets
Experience with Python or Rust for backend development
Experience with REST API design
Experience with database and migration work
Experience translating designs (e.g., Figma handoffs) into production-ready components and design systems
Experience setting up and maintaining CI/CD pipelines
Experience publishing to npm
Experience documenting components using Storybook or similar tooling
Good communication skills
Good work ethic for a remote workplace

Nice To Haves

Experience working between high-performing design and engineering teams
Background in trading, market data, or quantitative finance
Familiarity with Storybook or similar component documentation tooling

Responsibilities

Own, build, and maintain our JavaScript client library, ensuring it is robust, well-tested, and easy for external users to integrate with.
Integrate native libraries into JavaScript/TypeScript code using tools like N-API, node-addon-api, or Wasm.
Build responsive, performant front-end applications using React, Redux, Vite, Web Workers, and WebSockets.
Contribute to full-stack projects, including backend work in Python (or Rust), REST API design, and database/migration work.
Work between design and engineering teams to translate designs (e.g. Figma handoffs) into production-ready components and design systems.
Set up and maintain CI/CD pipelines, including publishing to npm.
Document components using Storybook or similar tooling.
Collaborate cross-functionally to ensure smooth feature rollouts and updates.