Lead Web UI Developer, London

Lab49 – Software Engineering /
Full-time /
LAB49 is hiring Lead Web UI Developers for an exciting opportunity. Elevate your career with an unparalleled experience in one of the world's most dynamic business hubs. Join us and be part of a visionary team shaping the future of innovation and growth. Don'tmiss out on this extraordinary opportunity – apply now and ignite your career. 
The Lead Web UI Developer will work on complex and challenging projects to drive transformative change for our top-tier Financial Services clients. Operating in an Agile environment, the Web UI Developer will have strong experience developing software in various front-end frameworks, with a focus on design and build the next generation of technology. 


    • You will build applications that push the envelope when it comes to throughput, latency, resiliency, all the while making sure that we deliver on-time and within budget. 
    • Technical Vision and Strategy: Develop and communicate a clear technical vision and strategy for building web experiences within the organization. Lead the architectural design and evolution of web experiences to support our growth and innovation goals. 
    • Team Development: Lead the development of the engineering teams skillsets and growth. Provide continuous support for engineers, allowing the whole team to be productive and execute on the vision that you help define. 
    • Software Development Leadership: Maintain hands-on involvement in software development, setting best practices, and ensuring high standards of quality. Mentor and guide the development team in implementing complex UI concepts and efficient coding techniques. 
    • Architecture and System Design: Craft robust, scalable, and flexible UI application architectures that support the needs of the business while accommodating future growth and technologies. This includes ongoing iteration of the target state architecture based on feedback and learnings. 
    • Technical Innovation: Identify and evaluate new technologies, tools, and practices that can enhance the organization's data capabilities. Lead the adoption of cutting-edge UI technologies, such as code quality tools, static analysis, build time optimization, and run time monitoring. 
    • Collaboration and Influence: Work closely with product owners, data specialists, and cross-functional teams to align technical solutions with business needs. Influence decision-making at the highest levels of the company with your technical expertise and vision. 
    • Performance and Scalability Optimization: Ensure data systems are optimized for performance and scalability. Conduct code reviews, system simulations, and performance testing to identify bottlenecks and improvement opportunities. 


    • 10+ years of commercial-grade web/front-end development experience. 
    • Strong experience in modern JavaScript, ideally TypeScript, building web applications with modern frameworks such as React, Angular and/or Vue. 
    • Solid skills interacting with multiple types of API formats, preferably REST and GraphQL, but additional skills with Websockets, SSE, RPC would be desired. 
    • Contribute to the design process from gathering requirements, planning and ideating from the start of a project. 
    • Demonstrate an understanding of user behavior and how to tailor web experiences to meet the needs of users. 
    • Work with designers and other partners to collaborate on design & wireframing andtake responsibility for delivering high-quality implementations. 
    • Experience with Agile development methodologies. 
    • Strong interpersonal and organizational skills. 
    • Demonstrable team leadership experience. 
    • Knowledge of, and strong demonstrated interest in, global financial markets and financial products is a strong plus. 
    • Bachelors or Masters in Computer Science, Engineering, Physics, Math, or related work experience. 
Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business. 
Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.