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Senior .Net Developer United States Jobs (On-site work)

18 Job Offers

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Senior .NET Developer
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Senior .NET Developer needed in La Jolla to support and modernize a mission-critical enterprise app using VB.NET and C#. Requires 8+ years of .NET experience, SQL Server, IIS, and Azure DevOps skills. Ideal for experts in legacy system migration and integration with SharePoint, Excel/VBA, and Pow...
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United States , La Jolla
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Robert Half
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Senior .NET Developer
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Senior .NET Developer sought in Jacksonville, FL. Leverage 3-5+ years of C#, ASP.NET Core, and Angular expertise to build scalable applications. Integrate with Azure services and SQL Server for robust business solutions. Enjoy comprehensive benefits including medical, dental, vision, and 401(k).
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United States , Jacksonville
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Robert Half
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Senior .NET Developer
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United States , La Jolla
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Robert Half
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Senior .NET Software Developer
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Senior .NET Software Developer needed for a long-term contract in South Jordan, Utah. You will partner with a technical lead to migrate legacy Web Forms to a modern .NET Core platform using C#, ASP.NET, and Entity Framework. Leverage Azure services and Docker in a collaborative, low-ego environme...
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United States , South Jordan
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Robert Half
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Senior .NET Developer – IAM (PowerShell Focus)
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Seeking a Senior .NET Developer with advanced PowerShell expertise to enhance enterprise IAM solutions in Jersey City or Tampa. You will design .NET applications and automate identity lifecycle, access controls, and integrations using Active Directory and Azure AD. This role requires 8-10 years' ...
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United States , Jersey City, NJ / Tampa, FL
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110000.00 USD / Year
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Senior .NET Developer – IAM (PowerShell Focus)
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Seeking a Senior .NET Developer with advanced PowerShell expertise to enhance enterprise IAM solutions in Jersey City or Tampa. You will design .NET applications and automate identity lifecycle, provisioning, and access controls. This role requires deep IAM knowledge, experience with Active Direc...
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United States , Jersey City, NJ / Tampa, FL
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110000.00 USD / Year
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Realign
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Senior .Net Developer
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United States , Indianapolis
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Ocean Blue Solutions
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Senior .NET Cloud Native Developer
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Join our dynamic Agile team in Washington, DC, as a Senior .NET Cloud Native Developer. You will develop impactful enterprise applications using .NET 8+, Azure, and modern frameworks like Entity Framework. This role requires 8-10 years of experience and offers high visibility on mission-critical ...
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United States , Washington, DC
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Andworx
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Senior .NET Developer
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Join Andworx as a Senior .NET Developer in Washington, DC. Develop impactful federal applications using Blazor, ASP.NET Core, .NET 8, and Oracle within an Agile team. This role requires 8-10 years of enterprise experience, U.S. citizenship, and offers high-visibility projects.
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United States , Washington
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Andworx
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Senior .NET Developer
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Join Bright Vision Technologies as a Senior .NET Full-Stack Developer in Lincoln, USA. You will build scalable web applications using .NET Core, MVC, and React. Key requirements include SQL Server, RESTful APIs, and CI/CD pipelines. Financial industry experience is a plus.
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United States , Lincoln
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Bright Vision Technologies
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Senior .NET Fullstack Developer
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Join Bright Vision Technologies in Dallas, TX, as a Senior .NET Fullstack Developer. Leverage your 12+ years of .NET, C#, and ASP.NET expertise to build innovative, scalable applications. This role requires strong OOP skills and experience with front-end technologies like Angular. Enjoy a collabo...
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United States , Dallas, TX
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Bright Vision Technologies
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Senior .NET Developer
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Join Bright Vision Technologies as a Senior .NET Full-Stack Developer in Columbus. You will build scalable web applications using .NET Core, MVC, and React, with strong SQL Server and API skills. Leverage your expertise in CI/CD and design patterns to transform business processes in a dynamic, in...
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United States , Columbus
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Bright Vision Technologies
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Senior .Net Full Stack Developer
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Join Bright Vision Technologies as a Senior .Net Full Stack Developer in Frisco, TX. This multi-year project requires 10+ years of .NET experience, with strong C#, .NET Framework, Angular, and RESTful services skills. You will work independently through the full SDLC, writing code, automating tes...
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United States , Frisco
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Bright Vision Technologies
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Senior .NET Developer
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Join Bright Vision Technologies as a Senior .NET Full-Stack Developer in Lincoln, USA. Leverage your expertise in .NET Core, React, and SQL Server to build scalable web applications and RESTful APIs. You will optimize performance and integrate CI/CD pipelines in a collaborative, inclusive environ...
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United States , Lincoln
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Bright Vision Technologies
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Senior .NET Fullstack Developer
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Join Bright Vision Technologies as a Senior .NET Fullstack Developer in Frisco. Leverage your 12+ years with .NET, C#, and modern front-end frameworks like React or Angular to build innovative, scalable solutions. Enjoy a supportive, inclusive work environment with strong career growth potential ...
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United States , Frisco
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Bright Vision Technologies
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Senior .NET Cloud Native Developer
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Join our Agile team in Washington, DC, as a Senior .NET Cloud Native Developer. You will build impactful enterprise applications using .NET 8+, Azure, and modern frameworks like Entity Framework. This role requires 8-10 years' experience, including with Azure DevOps and cloud-native development f...
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United States , Washington, DC
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Not provided
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Andworx
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Senior .NET Developer
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Join Andworx as a Senior .NET Developer in Washington, DC. Develop mission-critical federal applications using Blazor, ASP.NET Core, .NET 8, and Oracle in an Agile team. This role requires 8-10 years of enterprise experience, U.S. citizenship, and offers high-visibility projects.
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United States , Washington, DC
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Not provided
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Andworx
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Senior .NET Developer
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Join Bright Vision Technologies as a Senior .NET Full-Stack Developer in Lincoln, USA. Modernize a legacy MS Access application into a scalable, cloud-ready web solution. Utilize your strong full-stack skills within an Agile team, documenting work in Azure DevOps. This role offers significant car...
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United States , Lincoln
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Bright Vision Technologies
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About the Senior .Net Developer role

Pursuing Senior .Net Developer jobs represents a significant step in a software engineering career, marking a transition from hands-on coding to a role encompassing deep technical leadership, architectural decision-making, and mentorship. These professionals are the cornerstone of enterprise-grade software development, leveraging the Microsoft technology stack to build robust, scalable, and secure applications. Typically, individuals in these roles are tasked with the end-to-end ownership of complex software solutions, from conceptual design and system architecture through to deployment and optimization.

The core responsibilities of a Senior .Net Developer are multifaceted. Primarily, they are responsible for designing and developing high-performance applications using technologies like .NET Core, C#, and associated frameworks such as ASP.NET MVC or Web API. A strong command of database design and interaction using SQL Server or similar RDBMS is standard. Increasingly, these roles demand full-stack proficiency, requiring expertise in front-end technologies like React, Angular, or Blazor to create seamless user experiences. Beyond pure development, senior professionals conduct rigorous code reviews, establish and enforce coding standards, and implement best practices for testing, debugging, and continuous integration/continuous deployment (CI/CD) using tools like Docker, Kubernetes, and Azure DevOps.

A defining aspect of these jobs is the leadership and strategic component. Senior .Net Developers often serve as technical leads on projects, requiring them to analyze complex business processes and translate requirements into elegant technical solutions. They provide mentorship to mid-level and junior developers, allocating tasks and fostering team growth. Their role involves proactive problem-solving, performance optimization of existing systems, and making critical decisions on technology adoption, such as implementing microservices architectures or migrating applications to the cloud. They ensure application design adheres to overarching architectural blueprints and security protocols.

Typical requirements for Senior .Net Developer jobs include 5-10 years of hands-on experience in applications development with the .NET ecosystem. Employers seek experts in object-oriented programming, design patterns, and modern software development methodologies like Agile and Scrum. Essential skills include advanced proficiency in C#, .NET Core, Entity Framework, and RESTful API development. Knowledge of cloud platforms (Azure, AWS) and containerization is highly valued. Crucially, soft skills are paramount: demonstrated leadership, project management capabilities, clear communication for collaborating with cross-functional teams and stakeholders, and the analytical thinking required to deconstruct complex problems. For those seeking to advance their impact, Senior .Net Developer jobs offer a challenging and rewarding path at the intersection of deep technical mastery and influential software leadership.