18 of 18 Permanent Senior UI Developer Jobs in London

Who we are looking for Responsible for implementation and delivery of new UI features, services and enhancements to the BestX product and exhibit superior skills in modern Agile, Cloud-based, Web Development. Why this role is important to us State Street Global Market - GlobalLink - BestX is a technology company, delivering independent open-architecture real-time analytics, that operate autonomously … next-generation financial services company. Join us if you want to grow your technical skills, solve real problems and make your mark on our industry. As Senior UI Developer lead for BestX product, AVP The ideal candidate will be: Responsible for implementation and delivery of new UI features, services and enhancements to the BestX … as to facilitate effective CI/CD. Education & Preferred Qualifications Core/Must have skills 10+ years of hands-on experience working with Javascript, TypeScript, Websocket, React, Angular, Material UI, and REST APIs. Solid understanding and experience in one or more of the modern JavaScript build tool chains using tools like node, npm, rush, yarn, webpack, babel, cyprus. Programming More ❯

Join to apply for the Senior UI Developer role at Immediate Senior UI Developer (up to £70,000) Immediate is home to some of the biggest and most loved consumer brands in the UK, including Radio Times, Good Food and BBC Gardeners World magazine. Our trusted, quality content reaches millions … practice accessibility, performance and SEO. Our frontend stack includes multiple applications using React, Next.js and Storybook; using data from API services and a WordPress CMS. Reporting to the Lead UI Developer, the Senior UI Developer will be expected to develop, maintain, and support our digital products in accordance with the business and … technology objectives. As a Senior UI Developer you will: Immerse yourself in our technical ecosystem; current and legacy Develop and test new user-facing features, and support existing ones, across multiple browsers, platforms, and devices Build reusable code, components and libraries for future use Optimise pages, code and assets for maximum speed and scalability against More ❯

across trading, risk, operations, and finance workflows. The system is built with a modular architecture encompassing core components such as market data feeds, order gateways, execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. We emphasize event-driven, deterministic system design, real-time observability, and strong security. Our tech stack includes Java (low-latency), Python, Web … UI (React/Ag-Grid), Aeron, ClickHouse, Kubernetes, and modern CI/CD tooling, with a strong focus on automation, scalability, and performance. AI-assisted development tools are also leveraged to boost productivity and quality across the team. Responsibilities Design, develop, and maintain high-performance WebUIs for trading functions such as order tickets, real-time blotters, position views, and … time series charting. Build advanced UI components using React.js , Next.js , and Ag-Grid, focusing on modularity, performance, and responsiveness. Translate complex trading workflows (including options and multi-leg strategies) into intuitive, trader-friendly interfaces. Integrate frontend with real-time backend systems such as AMPS, ViewServer, and custom messaging protocols. Implement and contribute to microfrontend and microservices architectures in a More ❯

Senior UI Developer (Lead I - Software Engineering) Join to apply for the Senior UI Developer (Lead I - Software Engineering) role at UST . Role Overview We are seeking a Senior UI Developer with expertise in Angular, ReactJS, NodeJS, JavaScript, and TypeScript to join our growing … coding standards. Participate in Agile ceremonies such as stand-ups, planning, and reviews. Ensure quality through unit/integration testing and code reviews. Qualifications Minimum of 7 years of UI development experience. Strong skills in HTML5, CSS3, JavaScript, TypeScript, Angular, and ReactJS. Experience with responsive web design and front-end performance tuning. Solid understanding of REST APIs and integration … with back-end services. Familiarity with Git, Agile methodologies, and build tools like Maven. Excellent collaboration and communication skills. Passion for clean code, usability, and modern UI/UX trends. Additional Details Seniority Level: Mid-Senior level Employment Type: Full-time, Permanent/Fixed Term Industry: IT Services and Consulting Apply now for a chance to work More ❯

Synechron is looking for an experienced Senior UI Developer to join our dynamic Digital Practice, based x3 days a week from our London offices. Working for a well-known global bank the initial project is multi year designing new application portals working with a large experienced team. Role: Design new application portals for configuration, monitor … a plus Familiarity with Flutter/Electron, GraphQL is a plus Qualifications: Minimum of 6+ years in web development roles. Strong user experience focus, especially in monitoring dashboards. Proven UI deployment experience, with a background in version management. Demonstrated ability in container-based applications. Clear and concise communication skills. Diversity Statement S ynechron are proud to be an equal … regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Information Technology and Design Industries Technology, Information and Internet and Financial Services Referrals increase your chances of interviewing More ❯

working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia and Middle East. About the Role:- Title- Sr. UI/UX Developer Location – London, UK/Hybrid Type – Permanent We are looking for a Sr. UI/UX Developer, to design and build … including section and theme blocks, and utilizing Section Rendering API and core search, discovery and filtering capabilities Designing and building features into pre-existing structures, while adhering to current UI/UX designs Demonstrate ability to write clear, concise and well documented code Turn feature requests and user stories into wireframes/designs in Figma, with the understanding that … it needs to be adaptable to various website designs Improve design fundamentals and user experience of the Shopify Theme Build UI Extensions for Checkout Extensibilty and Customer Accounts Build dataLayer events to push to GTM Skills/Abilities 8+ years of work experience in software design and development, and hands-on experience in building UI heavy experiences. Necessary More ❯

working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia and Middle East. About the Role:- Title- Sr. UI/UX Developer Location – London, UK/Hybrid Type – Permanent We are looking for a Sr. UI/UX Developer, to design and build … including section and theme blocks, and utilizing Section Rendering API and core search, discovery and filtering capabilities Designing and building features into pre-existing structures, while adhering to current UI/UX designs Demonstrate ability to write clear, concise and well documented code Turn feature requests and user stories into wireframes/designs in Figma, with the understanding that … it needs to be adaptable to various website designs Improve design fundamentals and user experience of the Shopify Theme Build UI Extensions for Checkout Extensibilty and Customer Accounts Build dataLayer events to push to GTM Skills/Abilities 8+ years of work experience in software design and development, and hands-on experience in building UI heavy experiences. Necessary More ❯

Country: United Kingdom Location: London Sector: Software Developer Daily Rate: GBP £350 Per Day Negotiable Job Type: Contract Senior JavaScript/UI - AngularJS Contract Developer (Advertising/Media) Posted Monday, 28 September 2015 Key Responsibilities of the JS/UI Developer: Develop slick, modular, best-in-class user interfaces to … for you? Opportunity to work within an exciting and innovative Advertising environment Chance to live and work in the heart of Central London If you are an experienced developer with a passion for technology looking for a new and exciting opportunity, then please do not hesitate to apply More ❯

Synechron is looking for an experienced Senior UI Developer to join our dynamic Digital Practice, based x3 days a week from our London offices. Working for a well-known global bank the initial project is multi year designing new application portals working with a large experienced team. Role: Design new application portals for configuration, monitor … a plus Familiarity with Flutter/Electron, GraphQL is a plus Qualifications: Minimum of 6+ years in web development roles. Strong user experience focus, especially in monitoring dashboards. Proven UI deployment experience, with a background in version management. Demonstrated ability in container-based applications. Clear and concise communication skills. Diversity Statement S ynechron are proud to be an equal More ❯

Synechron is looking for an experienced Senior UI Developer to join our dynamic Digital Practice, based x3 days a week from our London offices. Working for a well-known global bank the initial project is multi year designing new application portals working with a large experienced team. Role: Design new application portals for configuration, monitor … a plus Familiarity with Flutter/Electron, GraphQL is a plus Qualifications: Minimum of 6+ years in web development roles. Strong user experience focus, especially in monitoring dashboards. Proven UI deployment experience, with a background in version management. Demonstrated ability in container-based applications. Clear and concise communication skills. Diversity Statement S ynechron are proud to be an equal More ❯

Synechron is looking for an experienced Senior UI Developer to join our dynamic Digital Practice, based x3 days a week from our London offices. Working for a well-known global bank the initial project is multi year designing new application portals working with a large experienced team. Role: Design new application portals for configuration, monitor … a plus Familiarity with Flutter/Electron, GraphQL is a plus Qualifications: Minimum of 6+ years in web development roles. Strong user experience focus, especially in monitoring dashboards. Proven UI deployment experience, with a background in version management. Demonstrated ability in container-based applications. Clear and concise communication skills. Diversity Statement Synechron are proud to be an equal opportunity More ❯

someone who can turn our technical solutions into a simple to use and beautiful end user experience. This requires someone passionate about solving real-world problems. As a senior web designer, you'll be expected to be an expert in web design and development and help lead the team in best practices and future direction. You will be More ❯

We are looking for a talented and highly motivated UI Developer to join our team. As a UI Developer, you will be responsible for implementing engaging, user-friendly interfaces that deliver seamless user experiences across web applications. You will work closely with the design, front-end, and back-end teams to ensure that the … visual elements of the web applications are consistent, high-quality, and responsive. Technical Skills: React JS Developer Thorough understanding of React.js and its core principles Experience in building web-based client-server applications In-depth knowledge of JavaScript, Node.js, CSS, HTML Hands-on experience with Web SDK Exposure to GitLab and JIRA Good team player #J-18808-Ljbffr More ❯

fully remote. As part of your role you will be expected to: PLANNING & REPORTING Collaborate with stakeholders, internally with the web team, developers, and leadership to define UX/UI objectives and document design requirements. Plan and prioritize the user experience based on various user roles and access levels, ensuring a tailored experience for each audience group. Provide regular … and flag potential challenges early. DESIGN & DEVELOPMENT Design the website and mobile app by keeping in view the various user experience and journeys. Design wireframes, prototypes, and high-fidelity UI for a website and mobile app that includes role-based access, custom user dashboards, and complex data visualizations. Create an intuitive and seamless user experience that integrates Tableau dashboards … of the intranet’s visualizations and content. Track and resolve any issues identified during testing to ensure a high-quality final product. Expected experience: Proven experience in UX/UI design for web applications, app development, especially in data-centric fields like economics or statistics. Proficiency with design tools like Figma, Sketch, or Adobe XD, with strong knowledge of More ❯

fully remote. As part of your role you will be expected to: PLANNING & REPORTING Collaborate with stakeholders, internally with the web team, developers, and leadership to define UX/UI objectives and document design requirements. Plan and prioritize the user experience based on various user roles and access levels, ensuring a tailored experience for each audience group. Provide regular … and flag potential challenges early. DESIGN & DEVELOPMENT Design the website and mobile app by keeping in view the various user experience and journeys. Design wireframes, prototypes, and high-fidelity UI for a website and mobile app that includes role-based access, custom user dashboards, and complex data visualizations. Create an intuitive and seamless user experience that integrates Tableau dashboards … of the intranet’s visualizations and content. Track and resolve any issues identified during testing to ensure a high-quality final product. Expected experience: Proven experience in UX/UI design for web applications, app development, especially in data-centric fields like economics or statistics. Proficiency with design tools like Figma, Sketch, or Adobe XD, with strong knowledge of More ❯

role is fully remote. As part of your role you will be expected to: PLANNING & REPORTING Collaborate with stakeholders, the web team, developers, and leadership to define UX/UI objectives and document design requirements. Plan and prioritize the user experience based on user roles and access levels, ensuring a tailored experience for each audience group. Provide regular updates … on design progress and flag potential challenges early. DESIGN & DEVELOPMENT Design the website and mobile app considering various user experiences and journeys. Create wireframes, prototypes, and high-fidelity UI for a website and mobile app that includes role-based access, custom dashboards, and complex data visualizations. Ensure an intuitive and seamless user experience that integrates Tableau dashboards and presents … user acceptance testing with the Knowledge Manager & Communications Team and end-users. Track and resolve issues during testing for a high-quality final product. Expected experience: Proven UX/UI design experience for web applications and app development, especially in data-centric fields. Proficiency with design tools like Figma, Sketch, or Adobe XD, including wireframing and prototyping. Knowledge of More ❯

Senior UI Developer – Central London We are looking to recruit a Senior UI Developer with at least 5 years experience in Front End UI development. It is important that candidates have sufficient experience to lead the UI development in a micro-service/angular framework. Must have a … strong background with Angular implementation and testing, along with REST endpoints. Additionally, a good understanding of how to break down an implementation of the UI to segregate business logic responsibilities correctly is essential. Preferred Skills: Vanilla Javascript/Core JavaScript coding NodeJS HTML5 CSS3 Key Skills required: Node.JS Development Javascript Variable scoping Event handling and Event delegation JSON parsing More ❯

Social network you want to login/join with: We are looking for a Sr. UI/UX Developer, to design and build new feature sets and interfaces and to resolve bugs on our eCommerce technology stack based on Shopify. As a member working in an Agile team environment, this person will work with product managers on … including section and theme blocks, and utilizing Section Rendering API and core search, discovery and filtering capabilities Designing and building features into pre-existing structures, while adhering to current UI/UX designs Demonstrate ability to write clear, concise and well documented code Turn feature requests and user stories into wireframes/designs in Figma, with the understanding that … it needs to be adaptable to various website designs Improve design fundamentals and user experience of the Shopify Theme Build UI Extensions for Checkout Extensibilty and Customer Accounts Build dataLayer events to push to GTM Skills/Abilities 8+ years of work experience in software design and development, and hands-on experience in building UI heavy experiences. Strong More ❯