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Senior .Net Developer United States Jobs

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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 Software Developer
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Join our team in Los Angeles as a Senior .NET Software Developer. You will design and build modern web applications, RESTful APIs, and AI chatbot integrations using .NET 7/8 and Angular. We seek an expert in DDD, clean architecture, and Azure services (SQL, Service Bus) who excels in mentoring an...
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United States , Los Angeles
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Intratek Computer, Inc.
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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 Full-Stack .NET Developer (AWS Focus)
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Join a long-term project modernizing a legacy WPF application to a cloud-native Blazor solution on AWS. As a Senior Full-Stack .NET Developer, you will leverage your expertise in C#, .NET Core, and AWS services (Lambda, EC2, S3). This hybrid role in Lincoln, NE, offers a chance to drive the full ...
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United States , Lincoln
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Tier4 Group
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Senior .NET developer
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Lead a major application modernization program, migrating from .NET Framework 4.8 to .NET Core 8 and SQL Server to CockroachDB. Utilize your 10+ years of .NET expertise to refactor legacy code and build scalable REST APIs. This senior role is based in Jersey City, Charlotte, or Addison, offering ...
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United States , Jersey City, NJ; Charlotte, NC; Addison, TX
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115000.00 USD / Year
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Senior .NET developer
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Join a major application modernization program as a Senior .NET Developer. You will lead the migration from .NET Framework 4.8 to .NET Core 8 and transition from SQL Server to CockroachDB. This role requires 10+ years of experience, including refactoring legacy systems and developing RESTful APIs...
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United States , Jersey City; Charlotte; Addison
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115000.00 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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Senior .NET developer
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Join a major application modernization program as a Senior .NET Developer. You will lead the migration from .NET Framework 4.8 to .NET Core 8 and transition from SQL Server to CockroachDB. This role requires deep expertise in .NET, Web APIs, and refactoring legacy enterprise applications. The pos...
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United States , Jersey City NJ , Charlotte NC , Addison TX
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115000.00 USD / Year
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Senior .NET Full Stack Developer
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Join our team in Austin as a Senior .NET Full Stack Developer. You will design and maintain secure, public-facing web applications using modern .NET 8+, C#, and ASP.NET. This role requires deep expertise in SQL/PL-SQL, front-end technologies (HTML, CSS, JavaScript), and Agile methodologies. We of...
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United States , Austin
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Dutech Systems
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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 Developer
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Join our team as a Senior .NET Developer in Suffern, US. Utilize your 6+ years of C# and full stack expertise with Angular to build scalable enterprise applications. This role offers a competitive benefits package including medical, dental, and 401(k). Experience in healthcare projects is a valua...
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United States , Suffern
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Robert Half
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Senior .NET Developer
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United States , Montebello
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Robert Half
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Senior .net Developer
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Join our client, a leading financial services firm in Austin, as a Senior .NET Developer. Leverage 6-10 years of experience with C#, .NET, and enterprise architecture to design robust backend services and complex applications. You'll lead projects, mentor peers, and build high-performance solutio...
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United States , Austin
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60.90 - 67.67 USD / Hour
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Aquent
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Senior .NET Developer
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Seeking a Senior .NET Developer in Irving for a hybrid role. Design end-to-end automation systems and microservices using C#, ASP.NET, and RESTful APIs. Requires 5+ years with .NET Core, microservices, SQL, and CI/CD pipelines like GitHub. Build scalable data solutions in a dynamic environment.
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United States , Irving
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NTT DATA
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Senior C# .NET Developer
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Seeking a Senior C# .NET Developer and Solution Architect in Des Moines, Iowa. You will design scalable cloud architecture for financial trading platforms, integrating 3rd party APIs and vendor solutions. This direct-hire role offers a $150K base, 15% bonus, comprehensive benefits, and a unique 2...
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United States , Des Moines, Iowa
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150000.00 USD / Year
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Robert Half
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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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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.

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