> Markdown version of [/jobs/ext/455030-ui-developer-senior-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/455030-ui-developer-senior-frontend-engineer). 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 Developer (Senior Frontend Engineer) - **Company:** Intersources Inc. - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Salary:** $26,000.0 - **Contract:** Temporary contract - **Skills:** HTML, Browser Compatibility, Code Review, Distributed Systems, Software Engineering, TypeScript, Web Applications, Web Application Frameworks, Website Wireframe, ReactJS, Git, Vue.js, AngularJS, Material UI, Front End Software Development, Software Version Control - **Published:** June 2, 2026 - **Apply:** https://www2.jobdiva.com/portal/?a=62jdnw10t7d77ytz0lbaey9qxonk3b05a9tqw96rb7z6hlfo7xj79l9g6mp6aj2o&compid=0/jobs/32387556#/jobs/32387556 ## About the Role * Strong UI skills (ReactJS or Angular frontend; Angular preferred) * Experience with modern JavaScript frameworks (Angular, Vue, React) * Strong JavaScript & TypeScript fundamentals * HTML & CSS proficiency with accessibility and cross-browser expertise, * Experience with modern JavaScript frameworks (Angular preferred; React/Vue acceptable) * Strong JavaScript and TypeScript skills * HTML/CSS expertise with accessibility and cross-browser compatibility * Experience with Git/version control systems * Ability to translate UX designs into functional UI components * Strong communication and collaboration skills * Ability to work in complex, distributed system environments * Understanding of scalable, maintainable frontend architecture * Strong attention to quality and engineering standards Nice to Have * Experience with CI/CD pipelines and automation * 5+ years of professional software engineering experience * Exposure to financial services or trading platforms * Familiarity with investment or brokerage domain concepts * Customer-first mindset and product thinking ## Description As part of the Green Meadows program, you will work as a Senior Developer responsible for building web applications for operations users and end customers. You will design and develop features, participate in code reviews and deployments, and collaborate with multiple stakeholders across engineering and business teams. This is a high-impact opportunity to work on a greenfield brokerage platform initiative within Fidelity's FCAT organization., * Design and develop UI features for brokerage web applications * Build scalable and maintainable frontend architecture * Work with UX/UI specifications, wireframes, and visual designs * Participate in code reviews, testing, and deployment activities * Collaborate with cross-functional teams in an agile environment * Ensure high performance, accessibility, and usability standards * Contribute to modernization of brokerage systems, * Build modern, scalable UI systems for a next-generation brokerage platform * Contribute to a once-in-a-decade greenfield modernization effort * Deliver high-quality, user-centric applications for operations and end users * Collaborate with engineers, designers, and business stakeholders in a fast-paced environment * Help define frontend standards, architecture, and best practices for the platform ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Microfrontends at Scale](https://www.wearedevelopers.com/videos/236-microfrontends-at-scale) - [Common Mistakes in Vue.js and How to Avoid Them](https://www.wearedevelopers.com/videos/958-common-mistakes-in-vue-js-and-how-to-avoid-them) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg) ## Related Articles - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [25 Essential Tools for Front End Developers](https://www.wearedevelopers.com/magazine/210-25-essential-tools-for-front-end-developers) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk)