> Markdown version of [/jobs/ext/4011537-ui-front-end-engineer-trading-applications](https://www.wearedevelopers.com/jobs/ext/4011537-ui-front-end-engineer-trading-applications). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # UI Front End Engineer- Trading Applications - **Company:** Phaxis LLC - **Location:** New York, NY, United States - **Contract:** Permanent contract - **Skills:** .NET Framework, Algorithmic Trading, Design of User Interfaces, Performance Tuning, Systems Integration, TypeScript, ReactJS, Backend, Build Management, Material UI, Real Time Data, Front End Software Development - **Published:** October 29, 2026 - **Apply:** https://www.thejobnetwork.com/job/a1d3d02c-d28a-4a9e-afa7-80c491d36b92/ui-front-end-engineer-trading-applications ## About the Role * Strong expertise in TypeScript and React * Expertise building and maintaining tooling for TypeScript * Experience building large-scale, production-grade front-end applications * Deep understanding of UI architecture, state management, and performance optimization * Experience integrating with distributed or real-time backend systems * Product-oriented mindset: able to work directly with business users, gather requirements, and deliver practical, scalable solutions * Experience designing applications that turn complex, real-time data into clear, actionable user experiences, with a strong focus on user productivity * Ability to operate effectively in start-up type of environments without dedicated UI design support * Experience in financial services and trading systems ## Description * Design and build complex, workflow-driven user interfaces using TypeScript and React * Develop scalable front-end architecture for large-scale trading systems * Integrate UI components with backend services written mainly in .NET and real-time data systems * Translate sophisticated trading and compliance workflows into intuitive, high-performance user experiences * Drive performance optimization, maintainability, and architectural consistency across applications * Collaborate closely with cross-functional stakeholders to deliver business-critical enhancements