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Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title : Lead UI Developer / React Contract : Initial 12-Month Contract with potential to extend . Location : London (In office) Rate : £850 - £900 inside umbrella What You'll Do: As the Lead UI Developer, you will spearhead the development of our flagship Triforce Credit Project. You will be responsible for designing and implementing cutting-edge user interfaces that cater to front office e-trading applications. Your expertise will ensure that our software is not only highly functional but also delivers an exceptional user experience. Key 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. What You Bring Deep Expertise: A proven track record of delivering complex, enterprise-grade front-office e-trading systems in high-pressure, real-time environments. Technical Authority: Languages: Exceptional command of JavaScript and TypeScript, with the ability to architect, optimise, and scale mission-critical applications. Front-End Frameworks: Mastery of React and Redux, with extensive experience shaping robust UI architectures used in demanding trading workflows. Back-End: Strong working knowledge of Java, capable of contributing effectively to full-stack solutions when required. Industry Insight: A 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. Why Join Us? Innovative Environment: Be a part of a team that thrives on creativity and innovation, where your ideas will be valued. Career Growth: Opportunities for professional development and career advancement are abundant. Impactful Work: Contribute to projects that directly influence the efficiency and effectiveness of trading operations in the financial sector. Collaborative Culture: Work alongside talented professionals who are passionate about technology and finance. Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

This is an exciting opportunity for a Senior UI React / Java Developer to contribute to innovative projects in the Financial Services industry. The role is based in London and focuses on delivering high-quality solutions within a collaborative technology department. Client Details The client is a leading global financial institution with a strong presence in the investment banking and capital markets space. They are known for their sophisticated front-office technology landscape and their commitment to building high-performance trading platforms that support complex, fast-moving Fixed Income markets. Description As the Senior UI React / Java Developer, you will: Lead front-end development for a new trading system within the credit space Build advanced, high-performance UI components for an eTrading platform Work with complex real-time data feeds using Java Configure and work with RFQ workflows and data points Collaborate with front-office technologists and trading stakeholders Contribute to architectural decisions in a modern, greenfield environment This role is not managerial - it's suited to a senior engineer who enjoys hands-on delivery and technical leadership. Profile Core Skills 10+ years' experience with JavaScript/TypeScript Expert-level React; Redux desirable Strong AG Grid experience (essential) 5+ years' Java (preferred over C#) Proven track record delivering greenfield platforms Trading Domain Expertise Significant front-office experience within investment banking Strong understanding of end-to-end trading lifecycle Solid knowledge of RFQ workflows Experience with low-latency trading or sales applications Fixed Income expertise is essential Wider asset class exposure (e.g., FX) is beneficial Job Offer Competitive daily rate of £750-1000, depending on experience. Temporary position offering flexibility and the chance to work in London. Opportunity to work on cutting-edge projects in the Financial Services industry. Engagement with a professional and innovative technology department. If you are a skilled Senior UI React / Java Developer looking for your next challenge, apply now to be considered for this exciting opportunity in London.