Full Stack .Net Developer

Role Description

We are seeking a Full Stack Software Engineer (Contract) to join a team responsible for one of our most critical and widely used store-facing mobile applications - a platform that empowers thousands of store team members across hundreds of retail locations.

Backend & Services Development

• Migrate legacy on-prem APIs (.NET 4.7.2) to Azure using .NET 10, ensuring functional parity, performance, and reliability.
• Design, develop, and maintain RESTful APIs and microservices using Azure Functions, Azure API Management (APIM), Cosmos DB, Azure SQL, Azure Storage, and Key Vault.
• Integrate with enterprise systems including DB2 mainframe databases, event-driven architectures (Event Hub, Service Bus), and downstream systems (ordering, finance, replenishment).
• Implement multi-region, high-availability deployments using Azure Front Door and active/active patterns.
• Follow and contribute to STME Coding Standards, including the shared NuGet package (Fluent Validations, logging, external service wrappers), SonarQube analysis, and Veracode security scanning.

Frontend & MAUI Mobile Development

• Contribute to the migration of modules from Xamarin Forms to .NET MAUI, including rewriting business logic, integrating with modernized Azure backend APIs, and ensuring end-to-end functional parity.
• Develop cross-platform mobile applications using .NET MAUI, C#, XAML, following the MVVM pattern, dependency injection, and SOLID principles.
• Build and test on enterprise mobile devices including Zebra TC52/TC53, PS20, PS30, and Data Logic scanners - including barcode scanning, shared device mode, and printer integration.
• Implement SSO authentication using Azure Entra ID / MSAL for shared device environments.
• Support .NET framework upgrades (e.g., .NET 8 → .NET 10) across mobile applications, including package updates and breaking change resolution.

Engineering Excellence & Delivery

• Flex across the stack based on sprint priorities - pick up backend, frontend, or end-to-end work as the team needs.
• Participate in all phases of SAFe Agile delivery - sprint planning, grooming, demos, and retrospectives.
• Work within Azure DevOps and GitHub for work item tracking, source control, CI/CD pipelines (YAML-based), and release management.
• Implement feature flagging (LaunchDarkly) for controlled rollouts and safe release strategies.
• Conduct thorough code reviews, maintain documentation, and contribute to wiki-based architecture and design docs.
• Support production deployments, change management (CHGs), post-deployment validation, incident response, and root cause analysis (RCA).
• Leverage AI-assisted development tools (GitHub Copilot) to accelerate delivery.

Qualifications

• 5+ years of hands-on software development experience with C#, .NET Core / .NET 10+, and Azure services.
• Strong experience building and deploying Azure Functions, APIM, Cosmos DB, Azure SQL, and Key Vault-based solutions.
• Proven experience migrating legacy on-prem .NET applications to Azure, including refactoring, re-architecture, and maintaining functional parity.
• 2+ years of experience with .NET MAUI or Xamarin Forms, including the Xamarin → MAUI migration path.
• Proficient in C#, XAML, MVVM pattern, dependency injection, and SOLID design principles.
• Strong proficiency in SQL and NoSQL databases - including DB2, Azure SQL, Cosmos DB, and SQLite.
• Experience with CI/CD pipelines (Azure DevOps YAML pipelines, GitHub Actions), branching strategies, and release governance.
• Strong problem-solving skills - ability to trace issues end-to-end across mobile, API, and database layers.
• Ability to ramp up quickly, work independently, and contribute meaningfully from day one with minimal handholding.
• Excellent communication skills - able to collaborate across dev, QA, product, and business teams.

Requirements

• Must have proven front end Maui experience.
• Ideally experience moving from Xamarin to Maui.
• Must have strong backend C#.Net/ .Net Core Azure development experience.
• Strong experience with Azure Service.
• Experience on modernization initiatives moving from older on prem C#.net to C#.Net/ .Net Core Azure is huge.
• CosmosDB experience is strongly preferred.

Benefits

• Duration: Through Jan 2027 with strong likelihood of extending another year.
• Rate: $60/hour W2.
• Location: Remote in one of these six states: MI, IN, IL, OH, WI, KY.