Principal UI Engineer Belfast based (hybrid) Join a global leader at the forefront of market infrastructure innovation, a trusted name powering financial and commodities markets worldwide. As a Principal UI Engineer, you will play a pivotal role in shaping high-impact software solutions that connect clients to premier liquidity and data services, all within a dynamic, Agile environment. Salary/Benefits Competitive salary package Comprehensive health and wellness benefits Flexible working arrangements Opportunities for continuous learning and career development Collaborative international team culture About your next employer This organisation is the world's largest interdealer broker, renowned for its extensive global reach and innovative trading platforms. You'll be part of a forward-thinking organisation committed to delivering excellence across the financial services sector. About you Extensive experience in front-end development, particularly with React, Typescript, JavaScript (ES6), and HTML5 Strong understanding of scalable and maintainable UI architecture, including component libraries and design systems Skilled in building cross-browser compatible, high-quality user interfaces Proficient with automation testing tools like Selenium, Cypress, or Playwright Knowledge of web performance optimisation and security best practices Ability to communicate complex technical concepts clearly to diverse audiences Experienced in leading or mentoring junior developers, driving standards and best practices What you'll do Lead and mentor front-end development teams to ensure high-quality, scalable code Define and evolve front-end architecture across multiple products and platforms Evaluate and adopt emerging UI technologies, championing best practices and design standards Collaborate with product teams and stakeholders to align technical strategies with business goals Conduct code reviews, technical design discussions, and contribute to continuous improvement initiatives Develop and maintain reusable UI components, libraries, and design systems to enhance consistency and efficiency For further information on this job, apply via the link or contact the VANRATH office for a confidential chat today. Follow VANRATH on LinkedIn for expert career advice, the latest jobs, industry news and much more