Salary: £24,000 - 27,000 per year Requirements: Proven track record of delivering complex, enterprise-grade front-office e-trading systems in high-pressure, real-time environments. Exceptional command of JavaScript and TypeScript, with the ability to architect, optimise, and scale mission-critical applications. Mastery of React and Redux, with extensive experience shaping robust UI architectures used in demanding trading workflows. Strong working knowledge of Java, capable of contributing effectively to full-stack solutions when required. Comprehensive understanding of the full trading lifecycle within investment banking, particularly across Fixed Income or FX, with the ability to navigate front-office workflows and trading system behaviours at a granular level. Responsibilities: Lead the development of front office e-trading applications with a focus on low latency and performance. Collaborate with cross-functional teams to ensure seamless integration of UI components. Mentor and guide junior developers, fostering a culture of innovation and excellence. Stay up-to-date with industry trends and best practices to continually improve our UI strategies. Technologies: Architect Java JavaScript React Redux TypeScript UX UI Design AI Support REST More: We are Pontoon, an employment consultancy dedicated to improving everyones chances of being part of the workplace. We respect and appreciate diversity and strive to showcase talents and unique experiences in an inclusive environment. As a Lead UI Developer, you will play a crucial role in our flagship Triforce Credit Project, designing and implementing user interfaces for our front office e-trading applications. Our collaborative culture promotes innovation, and we offer abundant opportunities for career growth while contributing to impactful projects in the financial sector. This is a full-time position based in our London office. last updated 13 week of 2026