Senior UIEngineer - £120,000 – On-site (Central London) Overview We are hiring a Senior UIEngineer to join a high-performance technology team within a leading financial services organisation operating in the oil and energy derivatives space. The business runs a cutting-edge electronic trading platform that serves both internal trading teams and … must also be a collaborative team player who communicates clearly and contributes to a high-quality engineering culture. Key Responsibilities Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience Integrate the UI with RESTful and streaming APIs (built in Rust and Python) Own performance improvements across dashboards … with QA and DevOps to enhance automated testing and deployment pipelines Lead efforts in securing, scaling, and monitoring the frontend environment Use observability tools (Prometheus, Grafana, Loki) to monitor UI health and performance Drive UI architectural decisions, performance benchmarking, and best practice implementation Skills and Experience Required Degree in Computer Science, Engineering, or a related field 5+ years More ❯
Principal UI Software Engineer page is loaded Principal UI Software Engineer Apply locations London time type Full time posted on Posted 30+ Days Ago job requisition id R3747 The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets … liquidity pools across all products, asset classes, brands and regions. It has been recognized as the OTC trading platform of the year by Risk Magazine Role Overview The Principal UI Software Engineer will provide technical leadership on TP ICAP's flagship Fusion platform. This includes the Fusion Platform UI team and setting the standards and direction … of other UI Engineers across several Credit technology teams. They will demonstrate the benefits of approaches to development and delivery either through working as a team member or through group sessions. They should be the authority for decisions relating to standards and engineering best practices within their discipline. You will lead the design, development, and implementation of cutting-edge More ❯
Milton Keynes, Buckinghamshire, South East, United Kingdom Hybrid / WFH Options
DCV Technologies Limited
Senior UI/UX Engineer Division: IT Job type: Senior UI/UX Engineer Location: Milton Keynes, UK About Our Client Founded in 1988, our client set out with an ambitious visionto become the worlds leading specialist in travel management. Built on the belief that travel is one of lifes most powerful and emotive … succeed. With a global presence and a commitment to outstanding service, our client continues to raise the standard for what tailored travel should be. About The Role The Senior UI/UX Engineeris responsible for designing and developing user interfaces that provide an exceptional user experience. They combine skills in design and front-end development to create visually appealing … intuitive, and functional digital products. This role requires a deep understanding of user-centred design principles, as well as technical expertise in front-end technologies. As a Senior UI/UX Engineer, you will have a diverse and varied role. Here are just some of the things youll be getting involved with: Design and develop user interfaces More ❯
I’m working with one of our big Financials domain client based in the Central London, and they’re looking for a Princiapal Software UIEngineer to join the team. This role requires a highly skilled hands-on professional who is passionate about technology and finance, you will lead the design, development, and implementation of trading applications … while driving the technical direction of the team. The ideal candidate: Expertise in UI using React/Typescript/JavaScript and OO design. Experience in HTML, React, Typescript, JavaScript. Experience in UI Libraries such as Material UI or Ant Design etc. Experience of Trading Business domain. If this sounds like an interesting opportunity to you, feel free More ❯
I’m working with one of our big Financials domain client based in the Central London, and they’re looking for a Princiapal Software UIEngineer to join the team. This role requires a highly skilled hands-on professional who is passionate about technology and finance, you will lead the design, development, and implementation of trading applications … while driving the technical direction of the team. The ideal candidate: Expertise in UI using React/Typescript/JavaScript and OO design. Experience in HTML, React, Typescript, JavaScript. Experience in UI Libraries such as Material UI or Ant Design etc. Experience of Trading Business domain. If this sounds like an interesting opportunity to you, feel free More ❯
I’m working with one of our big Financials domain client based in the Central London, and they’re looking for a Princiapal Software UIEngineer to join the team. This role requires a highly skilled hands-on professional who is passionate about technology and finance, you will lead the design, development, and implementation of trading applications … while driving the technical direction of the team. The ideal candidate: Expertise in UI using React/Typescript/JavaScript and OO design. Experience in HTML, React, Typescript, JavaScript. Experience in UI Libraries such as Material UI or Ant Design etc. Experience of Trading Business domain. If this sounds like an interesting opportunity to you, feel free More ❯
london (city of london), south east england, united kingdom
Harvey Nash
I’m working with one of our big Financials domain client based in the Central London, and they’re looking for a Princiapal Software UIEngineer to join the team. This role requires a highly skilled hands-on professional who is passionate about technology and finance, you will lead the design, development, and implementation of trading applications … while driving the technical direction of the team. The ideal candidate: Expertise in UI using React/Typescript/JavaScript and OO design. Experience in HTML, React, Typescript, JavaScript. Experience in UI Libraries such as Material UI or Ant Design etc. Experience of Trading Business domain. If this sounds like an interesting opportunity to you, feel free More ❯
within, finding and taking on a feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation within a deeply collaborative … and we're pushing the future of streaming with AI-driven features and global expansion. About the role Join our Cambridge team as a Senior Software Engineer (UI) building Roku's platform for millions of daily users. You'll create breakthrough UI experiences using modern C++ and AI-powered development tools, while solving complex embedded systems … leverage generative AI to accelerate development cycles. Perfect for senior professionals who learn fast, think proactively, and thrive on high-visibility impact. What you'll be doing Build scalable UI features optimised for millions of users Lead technical investigations and architect solutions for complex embedded systems challenges Integrate AI/ML capabilities and leverage generative AI tools to accelerate More ❯
within, finding and taking on a feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation within a deeply collaborative … and we're pushing the future of streaming with AI-driven features and global expansion. About the role Join our Cambridge team as a Senior Software Engineer (UI) building Roku's platform for millions of daily users. You'll create breakthrough UI experiences using modern C++ and AI-powered development tools, while solving complex embedded systems … leverage generative AI to accelerate development cycles. Perfect for senior professionals who learn fast, think proactively, and thrive on high-visibility impact. What you'll be doing Build scalable UI features optimised for millions of users Lead technical investigations and architect solutions for complex embedded systems challenges Integrate AI/ML capabilities and leverage generative AI tools to accelerate More ❯
I’m hiring for our long-term client – this time for a Technical Support Engineer or Application Support Engineer within the User Experience UX role with one of my favourite hiring managers – a strong, collaborative team and a high-performing environment. Contract: 12-month PAYE | Inside IR35 + strong possibility of conversion to FTE Salary: Up … London) Start: ASAP Hours: 40 hours/week | Weekly pay | Laptop provided What’s the role? You’ll support customers working on a cloud-based enterprise platform – helping troubleshoot UI-related issues, debug frontend behaviour, and create small scripts that streamline issue resolution. It’s hands-on, technical, and customer-facing. You’ll collaborate with global engineering and support … teams and have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Principle
I’m hiring for our long-term client – this time for a Technical Support Engineer or Application Support Engineer within the User Experience UX role with one of my favourite hiring managers – a strong, collaborative team and a high-performing environment. Contract: 12-month PAYE | Inside IR35 + strong possibility of conversion to FTE Salary: Up … London) Start: ASAP Hours: 40 hours/week | Weekly pay | Laptop provided What’s the role? You’ll support customers working on a cloud-based enterprise platform – helping troubleshoot UI-related issues, debug frontend behaviour, and create small scripts that streamline issue resolution. It’s hands-on, technical, and customer-facing. You’ll collaborate with global engineering and support … teams and have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of More ❯
london, south east england, united kingdom Hybrid / WFH Options
Principle
I’m hiring for our long-term client – this time for a Technical Support Engineer or Application Support Engineer within the User Experience UX role with one of my favourite hiring managers – a strong, collaborative team and a high-performing environment. Contract: 12-month PAYE | Inside IR35 + strong possibility of conversion to FTE Salary: Up … London) Start: ASAP Hours: 40 hours/week | Weekly pay | Laptop provided What’s the role? You’ll support customers working on a cloud-based enterprise platform – helping troubleshoot UI-related issues, debug frontend behaviour, and create small scripts that streamline issue resolution. It’s hands-on, technical, and customer-facing. You’ll collaborate with global engineering and support … teams and have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Principle
I’m hiring for our long-term client – this time for a Technical Support Engineer or Application Support Engineer within the User Experience UX role with one of my favourite hiring managers – a strong, collaborative team and a high-performing environment. Contract: 12-month PAYE | Inside IR35 + strong possibility of conversion to FTE Salary: Up … London) Start: ASAP Hours: 40 hours/week | Weekly pay | Laptop provided What’s the role? You’ll support customers working on a cloud-based enterprise platform – helping troubleshoot UI-related issues, debug frontend behaviour, and create small scripts that streamline issue resolution. It’s hands-on, technical, and customer-facing. You’ll collaborate with global engineering and support … teams and have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Principle
I’m hiring for our long-term client – this time for a Technical Support Engineer or Application Support Engineer within the User Experience UX role with one of my favourite hiring managers – a strong, collaborative team and a high-performing environment. Contract: 12-month PAYE | Inside IR35 + strong possibility of conversion to FTE Salary: Up … London) Start: ASAP Hours: 40 hours/week | Weekly pay | Laptop provided What’s the role? You’ll support customers working on a cloud-based enterprise platform – helping troubleshoot UI-related issues, debug frontend behaviour, and create small scripts that streamline issue resolution. It’s hands-on, technical, and customer-facing. You’ll collaborate with global engineering and support … teams and have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of More ❯
We're hiring a Senior UI Lead Engineer to help build Citi's next generation, cross-asset risk system. We are utilising cutting edge technology to meet complex trading and regulatory requirements. The development position involves: Development of high-quality, modern UIs for developers, support, quants and finance staff Participation in a fast-paced Agile development process More ❯
work and grow alongside a company that's going places, now's the time to join Oak. About The Role We're looking for a talented Front-End Engineer with experience in React to help build intuitive, high-performance interfaces that enhance the user experience across our platform. You'll work closely with designers, product managers, and back … and crafting digital experiences that delight end users. What You'll Do Develop, test, and maintain front-end components using React and other Javascript frameworks Work with UX/UI designers to translate designs into responsive, accessible front-end solutions Collaborate with back-end engineers to integrate APIs and ensure smooth user journeys Optimise performance across browsers and devices More ❯
work and grow alongside a company that's going places, now's the time to join Oak. About the Role We're looking for a Principal Front-End Engineer with strong React experience to lead the development of user-facing features across Oak's platform. You'll play a pivotal role in setting the technical direction for the … front end of our platform, working closely with cross functional teams to deliver elegant, performant, and scalable user experiences. As both a hands-on engineer and technical leader, you'll be someone who owns front-end architecture decisions, mentors developers, and champions engineering excellence; helping us scale a modern, maintainable, and accessible front-end ecosystem. What You … ll Do Define and evolve our front-end architecture and technical direction, ensuring it aligns with business and product goals Lead the development of high-quality, accessible and performant UI components using React, TypeScript, and other JavaScript frameworks Collaborate closely with designers, product managers, and backend engineers to shape seamless user experiences across our platform Lead by example and More ❯
html Teams at Starling Teams do great things here at Starling, striving to continue changing banking for good. Front-End Development Our front-end applications are built in-house using JavaScript/TypeScript, React, and other technologies. We're Hiring More ❯