Senior Full Stack Engineer

An exciting opportunity for a Senior Full Stack Engineer to join a growing FinTech business building financial planning and modelling technology used by major financial institutions across the UK. You’ll play a key role in designing and developing complex applications, influencing technical decisions, and improving engineering standards. This role suits an experienced engineer who enjoys solving challenging problems, taking ownership, and supporting colleagues.Skills required:Strong commercial experience with TypeScript, JavaScript, and Node.jsProven full-stack development experience using React and Node.jsExperience designing scalable applications and APIsGood knowledge of MongoDB, Redis or similar technologiesExperience with CI/CD, containerised environments, and automated testingStrong technical judgement, problem-solving, and communication skillsExperience with cloud platforms and AI-assisted development tools would be beneficialWhat you’ll be doing:Design, build and maintain full-stack financial planning and modelling applicationsTake ownership of development from technical design through to productionContribute to architecture, performance, scalability and security improvementsImprove CI/CD pipelines and automated unit, integration and end-to-end testingUse AI development tools, ensuring generated code meets engineering standardsLead code reviews, share knowledge and support the development of other engineersWork closely with Product and business stakeholders to deliver practical technical solutions An opportunity to make a meaningful technical contribution, work with modern technologies and help shape the development of sophisticated financial software.Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.