QinetiQ US is seeking an experienced Sr Full Stack Developer to serve as the primary developer and maintainer of their existing web application, requiring ownership of the complete software development lifecycle and close collaboration with business stakeholders and end users.
Requirements
- Strong experience with .NET 8.0, ASP.NET Core , and Entity Framework Core
- Proficiency in React, TypeScript, and Material UI framework for front-end development
- Experience with modern front-end tooling including Vite, React Query , and Node.js (LTS)
- Solid understanding of Windows Authentication (Claims/Negotiate protocol) and security best practices
- Proficiency with Visual Studio 2022 (Community or Professional edition) — VS Code will not suffice for Windows Authentication scenarios
- Experience with SQL Server Developer Edition and database management tools (SSMS or Azure Data Studio)
- Knowledge of version control systems (Git)
Responsibilities
- Serve as primary developer and maintainer for existing web application built with ASP.NET Core backend and React frontend with Material UI
- Own end-to-end software lifecycle including design updates, development, testing, deployment, and production support
- Perform bug fixes, troubleshooting, and performance tuning to ensure optimal system stability and availability
- Refactor and modernize legacy code to improve maintainability and performance when feasible
- Manage and maintain deployments on Windows Server using IIS
- Apply security patches, library upgrades, and system updates in a timely manner
- Monitor system health and proactively address potential issues
Other
- Proven ability to work independently with minimal oversight
- Strong problem-solving and analytical thinking skills
- Excellent communication skills for technical and non-technical audiences
- Experience in Agile/Scrum development environments
- Ability to prioritize and manage multiple tasks effectively
