Senior UI Developer

Trumid•East Portal Distributed Camping Area, CO

1d•$150,000 - $200,000•Remote

About The Position

Trumid is seeking a U.S.-based (or EST hours) mid/senior UI Developer with a proven ability to stay ahead in the fast-evolving JavaScript/TypeScript ecosystem. The ideal candidate must be able to work independently and within a team, as both are crucial for success in this role. Our applications are streaming-intensive, so experience with high-performance, message-driven UIs is highly valued.

Requirements

Located in the U.S., EST Time Zone
4-8 years experience;
Experience working with TypeScript, web-ecosystem build and UI tools
Strong understanding of React and render lifecycle with experience building React frontend applications for production systems
Understanding of reactive socket-streaming application development
Experience using CSS and an ability to debug UI layout issues
Understanding of and experience adding and maintaining tests at different levels, including unit and E2E tests, using libraries like vitest, storybook, playwright
Proven experience working remotely while communicating clearly and effectively in a fast-paced environment

Nice To Haves

Experience and familiarity with ag-grid, MUI react components, JSS, and atom based concepts (Recoil, jotai, zedux etc.) as well as electron or openfin is a plus

Responsibilities

Build and optimize sophisticated, high-performance frontend applications, delivering clean, testable, and maintainable code.
Tackle complex problems by breaking them down, handling edge cases, and continually improving code quality and efficiency.
Collaborate with the Front End and QA teams, and occasionally with business stakeholders, to deliver high-quality user interfaces that significantly enhance user experience. This role will support our Portfolio Trading team.
Debug effectively using application logs, while considering system-wide performance, scalability, and reliability.
Ability to effectively use AI-assisted development tools to accelerate UI development, improve code quality, and reduce errors while maintaining strong engineering judgment (e.g. Claude code).