Senior Software Development Engineer
First seen by Alion on Sep 8, 2026.
Job Summary :
We are seeking an experienced Senior Full Stack Developer with deep expertise in the Microsoft stack to design, develop, and maintain robust, scalable web applications. This role focuses on full-stack development using C#, .NET, modern JavaScript, and Azure cloud services. The ideal candidate is a hands-on technical leader who can architect solutions, mentor team members, ensure high-quality code, and thrive in an Agile/Scrum environment.
You will work on enterprise-grade applications, integrating front-end and back-end components while leveraging Azure for hosting, scalability, and DevOps practices.
Key Responsibilities :
- Design, develop, test, and deploy full-stack web applications using .NET Core (MVC), C#, and modern JavaScript frameworks/libraries.
- Build and maintain responsive, user-friendly front-end interfaces with HTML5, CSS3, and JavaScript.
- Develop secure, performant back-end services, RESTful APIs, and business logic using C# and ASP.NET MVC.
- Implement and optimize data access layers using SQL Server, writing efficient Transact-SQL queries, stored procedures, and schema designs.
- Deploy, manage, and scale applications on Microsoft Azure (e.g., App Services, Azure SQL, Functions, Storage, Key Vault, and related PaaS services).
- Participate actively in all phases of the Agile/Scrum process : sprint planning, daily stand-ups, backlog grooming, retrospectives, and sprint reviews.
- Conduct code reviews, enforce best practices, and mentor junior developers on coding standards, design patterns, and Microsoft technologies.
- Troubleshoot and resolve complex technical issues across the full stack, including performance tuning and debugging.
- Collaborate with cross-functional teams (product owners, QA, DevOps, designers) to translate business requirements into technical solutions.
- Stay current with evolving Microsoft ecosystem trends (.NET updates, Azure innovations, security best practices).
Required Qualifications :
- 7+ years of professional experience in full-stack development with a strong focus on Microsoft technologies.
- Expert-level proficiency in C# and .NET Core.
- Strong experience with modern JavaScript (ES6+, TypeScript preferred) for client-side development.
- Hands-on experience with SQL Server and writing complex Transact-SQL (queries, stored procedures, indexing, performance tuning).
- Proven experience deploying and managing applications in Microsoft Azure.
- Solid understanding of Agile/Scrum methodologies and experience working in Scrum teams (e.g., using Azure DevOps).
- Strong knowledge of web development best practices : REST APIs, authentication/authorization (e.g., OAuth, JWT), responsive design, security (OWASP), and unit/integration testing.
- Excellent problem-solving skills, attention to detail, and ability to work independently or collaboratively.
- Experience with AI prompting and vibe coding tools such as Claude, GitHub, CoPilot.
Preferred / Nice-to-Have Qualifications :
- Experience with .NET Core 8.0 (or higher) / .NET 9+ and ASP.NET Core (migration experience from .NET Framework is a plus).
- Familiarity with modern front-end frameworks and state management tools.
- Experience with Entity Framework (classic and Core), Azure DevOps pipelines, CI/CD, containers (Docker), or microservices architecture.
- Knowledge of additional Azure services (e.g., Azure AD/Entra ID, API Management, Service Bus, Logic Apps).
- Previous experience mentoring teams or leading technical initiatives.
Education :
- Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent professional experience).
Skills
Full Stack, .Net, .Net Core, MVC, Javascript, C#, RESTful API, SQL Server, Azure