Intec Select Limited
May 19, 2026
Contractor
Senior Full Stack Developer (Contract) Outside IR35 Remote Up to £600/day Overview We're partnering with a specialist software consultancy delivering business-critical platforms across financial services and pensions. They're looking for a Senior Full Stack Developer who enjoys proper engineering - clean architecture, ownership of solutions, and working alongside experienced senior engineers and QA specialists.This is a hands-on delivery role (no line management, no ticket-factory environments) with meaningful technical influence across the full stack. What you'll be doing Designing and building end-to-end full-stack solutions in a modern cloud environment Backend development using Python and C# Frontend development with TypeScript and React Working within Azure (Functions, Azure SQL, Service Bus, ADF) Contributing to architecture discussions, technical design, and code reviews Applying pragmatic AI-assisted / agentic engineering practices to improve delivery quality and velocity Supporting development of financial modelling platforms, including areas such as: -Monte Carlo simulations-cashflow projections-scenario modelling-valuation / forecasting logic-pension or investment modelling engines What we're looking for Strong experience as a Senior Full Stack Developer across backend, frontend, and cloud Commercial experience building modelling or calculation-heavy platforms in financial services, pensions, investments, or similar regulated domains Exposure to simulation engines, forecasting tools, or financial projection systems Comfortable owning features end-to-end and making sensible technical trade-offs High standards around code quality, testing, and maintainability Experience working in regulated or accuracy-critical environments Contract details Up to £600 per day Outside IR35 Fully remote Initial 6-month contract