Join a leading global investment management business, building high-performance front-office applications that support portfolio managers, investment professionals and trading workflows. This is a high-impact engineering role combining hands-on full-stack development, scalable architecture and direct collaboration with front-office stakeholders. Senior Full Stack Software Engineer London Up to £700 per day PAYE Build technology at the heart of global investment management. Join a leading global investment management business, building high-performance front-office applications that support portfolio managers, investment professionals and trading workflows. This is a high-impact engineering role combining hands-on full-stack development, scalable architecture and direct collaboration with front-office stakeholders. What you''ll be doing Design and build modern applications using React or Vue.js and Java-based back-end services. Develop distributed microservices, APIs and scalable enterprise architectures, with Python and Node.js also valuable. Work with relational and NoSQL databases, including PostgreSQL, MySQL and DynamoDB. Build and deploy cloud-based solutions using AWS, Azure or GCP, alongside CI/CD pipelines and automated testing. Optimise application performance, security, reliability and production support. Lead technical design, code reviews and testing, resolve complex engineering challenges and mentor other developers. Work directly with portfolio managers, ..... full job details .....