Senior .NET Developer
InstantServe LLC
Senior .NET Developer Location: Hartford, CT - Hybrid Onsite: 1 day/week at 450 Columbus Blvd, Hartford, CT 06103 Duration: 09/07/2026 - 07/03/2027 Schedule: Monday-Friday, 8:00 AM-5:00 PM EST Position Summary CT OEC is seeking Senior Developers to support Power Apps, customer-facing web applications, and enhancements/bug fixes to existing .NET applications . The role combines requirements analysis, software development, data migration validation, and testing within an Agile/Scrum environment. Key Responsibilities Gather and document business/system requirements and create user stories and acceptance criteria. Develop and maintain
ASP.NET MVC
, Entity Framework, and Azure App Service applications. Work with Azure SQL , database schemas, stored procedures, and performance optimization. Support Azure DevOps, Git, CI/CD , code reviews, and deployments. Develop reusable SQL/data validation scripts for migration testing. Validate record counts, transformations, referential integrity, and business rules. Create legacy-to-modern data and interface mapping documentation. Support system, integration, and UAT testing; track defects in Azure DevOps. Participate in Scrum ceremonies and collaborate with product owners, developers, testers, and data teams. Required Skills ASP.NET MVC Entity Framework Azure SQL Azure App Service Azure DevOps / Azure GitCI/CD
Strong SQL and relational database skills Data migration, validation, and mapping Azure DevOps test/defect management Agile/Scrum experience Microsoft Excel and Visio Preferred Legacy modernization/public-sector experience Enterprise application security and access control API documentation and system integration Report validation InstantServe LLCVacancy posted 2 days ago
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