Senior JavaScript Developer

Get AI-powered advice on this job and more exclusive features. Job Description We are looking for JavaScript engineers to join us in building the HTML5-based UI for our global, market-leading trading platform. You will be skilled in Angular, TypeScript, Rx.js, and JavaScript, all of which we are using to build a unified UI for the whole of Tradeweb in a company-wide UI monorepo. The monorepo contains both application and library code, and quality is essential. We want to make the monorepo the best place to build, test, and collaborate on JavaScript code, and create constant improvements that can be applied across the whole platform. As a self‑starter, you will be able to take a complex problem and use your own engineering and debugging skills to dissect and analyse it, and distill into a clear solution. You will be able to proactively identify problems faced by our customers, and figure out creative technological solutions to these. As traders rely on our platform to trade and consume real‑time data about hundreds of financial products simultaneously, performance of our UI is critical. Therefore, interest and experience in JavaScript and HTML5 application performance and optimisation is important. Ideally, you will be keenly in touch with the JavaScript community and keeping an eye on the latest developments in ECMAScript, JS engines like V8, web browsers, Angular, and TypeScript. Experience in applying automated testing e.g. unit testing, its benefits, and associated practices like TDD, on large‑scale codebases is essential as it is key to our quality‑first approach and culture of the team. We are also doing some work with Node.js microservices - using Nest.js, with Mongo, Redis, and Kubernetes - and tightly‑integrating them with our UI in the monorepo. Though most Tradeweb server‑side development is currently in C++, our goal is to have consistent practices and tooling across both the UI and server‑side. Job Responsibilities Responsible for delivering software end‑to‑end. Liaising with product managers and designers, coordinating across international development teams on engineering and architecture, working with QA and dev‑ops. Deliver a quality, innovative product to the traders and investors who depend on our platform every day. Architect, implement, and deliver new web‑based trading UI functionality. Problem solving and debugging skills, especially for production issues. Host and participate in code reviews. Qualifications Ideally Bachelor's Degree, preferably in Computer Science. Professional web application development experience. Expert‑level JavaScript knowledge, and curiosity to learn more. Angular 18 – the more in‑depth your understanding, the better. TypeScript. HTML5, CSS3, SASS. Superior analytical and problem‑solving ability. Effective communication skills to work with different teams across an international company. Automated unit testing and test‑driven development. Broad knowledge of web platform and technologies. Robust understanding of performance issues, computational complexity, and code optimisation. Familiarity and implementation of industry‑standard algorithms and design patterns. Proactive and team player who can deliver in a high‑pressure demanding environment. Interest in UX and UI design implementation. Company Description Tradeweb Markets is a world leader in the evolution of electronic trading. A fintech company serving approximately 2,500 clients – including the world’s largest banks, asset managers, hedge funds, insurance companies, wealth managers and retail clients – in more than 65 countries across the globe. Since our first trade in 1998, we have helped transform and electronify the fixed income markets. Tradeweb is a culture built on innovation, creativity and collaboration. Through a combination of very talented and driven people, innovative products and solutions, cutting‑edge technology, market data, and a vast network of clients, we continue to work together to improve the way financial markets trade. Mission: Move first and never stop. Collaborate with clients to create and build solutions that drive efficiency, connectivity, and transparency in electronic trading. Tradeweb Markets LLC ("Tradeweb") is proud to be an EEO Minorities/Females/Protected Veterans/Disabled/Affirmative Action Employer. SENIORITY LEVEL Mid‑Senior level EMPLOYMENT TYPE Full‑time JOB FUNCTION Engineering and Information Technology COMMERCIAL RELEASE Private Policy Statement Link: #J-18808-Ljbffr