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