Full Stack Engineer - UK (Remote) - £60k-£70k Im working with a UK-based organisation that is building a secure, offline-capable property visiting platform using modern Microsoft technologies. They are looking for a Senior Full Stack Engineer to play a key role in delivering the first iteration of a strategic cloud platform that will expand under a fail fast innovation model. This is an excellent opportunity for a senior engineer who thrives in structured, security-focused environments and enjoys building clean, scalable systems from the ground up. The Opportunity Youll join a senior engineering team delivering a greenfield platform consisting of a .NET MAUI mobile application (iOS & Android), an Angular 21 web application, and Azure-hosted backend services built using clean architecture principles. Reporting into technical leadership, youll contribute to architectural decisions while remaining hands-on across backend, frontend, cloud infrastructure, and mobile. This is a role for someone who thinks architecturally but delivers incrementally, maintaining high standards for quality, security, and performance. The initial programme will establish the engineering standards and cloud foundation that future products will be built upon. Key Responsibilities You will be responsible for: Writing production-quality, well-tested, secure code across backend, web, and mobile Designing and building RESTful APIs using clean architecture principles Developing offline-first mobile functionality using .NET MAUI Building secure Angular 21 frontends using strict TypeScript and MSAL authentication Implementing Infrastructure as Code using Bicep Deploying and managing Azure-hosted services using enterprise DevOps practices Integrating Azure Entra ID authentication and role-based authorisation Collaborating closely with Product, UX (Figma), and QA teams Challenging ambiguity and proposing simple, robust solutions Contributing to architectural documentation and decision records Tech Stack & Experience Core technologies: .NET 10 / ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (iOS & Android) - offline-first design Angular 21 (strict TypeScript) DevExpress DevExtreme (v25) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights) Infrastructure as Code (Bicep) Azure Entra ID (authentication & RBAC) NUnit (backend and mobile testing) Vitest & Playwright (frontend and E2E testing) Desirable Experience: Power BI report templating Azure Fabric / Data Lake familiarity Geospatial or mapping APIs (Google Maps preferred) iOS exposure (ARKit / LiDAR / sensor APIs) Experience in regulated or security-sensitive environments What Theyre Looking For At least 5 years commercial software engineering experience Strong expertise in modern .NET Proven experience with modern Angular (v15) Hands-on Azure architecture and deployment experience Experience implementing Infrastructure as Code Experience integrating Azure Entra ID Strong REST API design knowledge Experience implementing CI/CD pipelines Security-first mindset with strong attention to detail Ability to work independently within defined architectural standards Clear and confident communication skills Highly desirable: experience with DevExpress / DevExtreme. Why This Role? This is a rare opportunity to shape a foundational cloud platform from day one using the latest Microsoft stack. Youll work in a disciplined, enterprise-grade engineering culture where security, performance, and quality are non-negotiable - while also contributing to a wider innovation strategy that will evolve beyond the initial product. If youre open to a confidential discussion, apply now and Ill be in touch. Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.