Millennium
EQST UI Engineer
$175K–$250K
New York, New York · On-site · Full-time · Posted Sep 29, 2026
- Experience
- Three or more years building real-time production web applications, or equivalent evidence of strong engineering ability.
- Education
- Bachelor’s degree in Computer Science or a related field.
About the job
Builds real-time web applications and shared UI capabilities for trading and operational systems on Millennium’s Skyline platform.
What you'll do
- Develops responsive interfaces and reusable components for order management, risk, market monitoring, and operational workflows.
- Transforms high-volume data into performant visual experiences and integrates applications with services and APIs.
- Owns features from requirements and architecture through testing, rollout, and support, collaborating with business and technology teams.
What they ask for
- Strong TypeScript and JavaScript skills, with deep React and component-based UI experience.
- Experience with complex client-side state, asynchronous data, and real-time or data-intensive applications.
- Experience integrating user-facing applications with services and APIs; experience with automated testing, debugging, and production support.
- Bachelor’s degree in Computer Science or a related field.
Nice to have
- SASS or comparable styling systems.
Pay
$175,000 to $250,000 USD base salary
Tools
TypeScript, React, JavaScript, WebSockets, GraphQL, gRPC, Electron, Node.js
AI focus
Uses Claude Code through Millennium’s internal AI tooling throughout the software development lifecycle, validating architecture, edge cases, performance, security, maintainability, and user outcomes.
Model-written summary · the original posting is authoritative