Sr .Net Full Stack Engineer

Senior Full Stack Engineer (.NET)Location: NYC (onsite)Job Type: Contract (Multi-Year)Interview: IN PERSONExperience: 8+ Years - HANDS-ONOur client is seeking a Senior .Net/Full Stack Engineer to help modernize critical legacy business systems into reliable, maintainable, and well-tested applications using .NET 8, Angular, SQL Server, and disciplined Azure DevOps delivery practices. This role is ideal for an experienced engineer who can understand complex legacy behavior, preserve established business rules with accuracy, and rebuild functionality using modern architecture, clean code, and AI-assisted development workflows.Job Requirement:Senior Full Stack Engineer (.NET) with strong expertise in .NET, .NET Core, C#, SQL Server, REST APIs & Microservices to modernize legacy enterprise applications. The ideal candidate will have experience with full SDLC, CI/CD and AI-assisted development tools.Required Skills:8+ years of software development and production support experience.Strong experience with C#, .NET Framework, .NET Core, ASP.NET, MVC, Web Forms, and VB.NETSolid SQL Server and T-SQL experience, including stored procedures, performance tuning, and query optimization.Experience using GitHub Copilot or similar AI-assisted development tools.Experience with SharePoint Online/On-Premises, Power Apps, and Power Automate.Excellent troubleshooting, problem-solving, and communication skills.Nice to Have:Azure DevOps experience covering boards, CI/CD pipelines, and repos in a real team delivery context.Power BI familiarity.Prior exposure to OpenROAD 4GL or Actian Ingres Database, even at a passing familiarity level.8+ years of experience in Solution Architecture, Cloud Engineering, Software Engineering, or Infrastructure Architecture.5+ years of hands-on Microsoft Azure architecture experience.Strong background designing enterprise-scale cloud and web application solutions.Experience with REST APIs, microservices, event-driven architecture, and distributed systems.Experience with modern frontend frameworks (React, Angular, or Vue.js).Experience with backend technologies (.NET, Node.js, Java, or Python).