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. Senior Full Stack Engineer - FX e-Trading (React/TypeScript Java) Location: London (minimum 2 days per week onsite) Contract: 12 months About the role We're looking for two experienced Senior Full Stack Engineers to join a high-profile project building a brand-new FX e-trading platform. You'll be responsible for delivering full-stack features across React/TypeScript front-end applications and Java backend services, ensuring high performance, resilience, and reliability for real-time trading workflows. What you'll do Lead design and development of full-stack features, from frontend UI to backend services. Work closely with trading, product, and infrastructure teams to translate complex requirements into robust technical solutions. Optimise system performance, latency, and reliability for real-time trading. Mentor and support other engineers, sharing best practices and driving code quality. Leverage AI-assisted development tools to accelerate delivery and maintain high-quality code. What we're looking for Strong experience in full-stack development with React/TypeScript and Java. Proven experience with microservices, distributed systems, and real-time trading or financial platforms. Hands-on understanding of system performance, latency optimisation, and observability. Ability to collaborate with multiple stakeholders and mentor other engineers effectively. Familiarity with AI-assisted development tools is a plus. Why join us This is a chance to work on a cutting-edge FX e-trading platform, influence architectural decisions, and make a real impact on trading technology in a collaborative, fast-paced environment. Candidates will ideally show evidence of the above in their CV to be considered please click the "apply" button. 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. Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly