Senior .NET Developer

Job Title: Senior .NET Developer
Experience: 12+ Years
Location: Jersey City, NJ
Employment Type: Contract – W2

Job Overview

We are seeking an experienced Senior .NET Developer with 12+ years of hands-on experience in designing, developing, and maintaining enterprise-level applications. The ideal candidate will have strong expertise in Microsoft .NET technologies, C#, ASP.NET Core, Web API, microservices, and SQL Server, along with experience building scalable, secure, and high-performance applications.

Key Responsibilities

• Design, develop, enhance, and maintain enterprise applications using C#, .NET Core, and ASP.NET Core.

• Build and integrate RESTful APIs and microservices.

• Develop scalable backend services and application components using object-oriented programming and design principles.

• Work with SQL Server, Entity Framework, LINQ, and stored procedures for database development and optimization.

• Implement authentication, authorization, and application security best practices.

• Collaborate with architects, business analysts, QA engineers, and cross-functional development teams.

• Participate in code reviews, technical design discussions, and troubleshooting.

• Optimize application performance, scalability, and reliability.

• Develop and maintain automated unit and integration tests.

• Support CI/CD pipelines, deployments, and production issue resolution.

• Follow Agile/Scrum methodologies and established SDLC practices.

Required Skills

• 12+ years of professional software development experience.

• Strong hands-on experience with C#, .NET Framework, .NET Core, and ASP.NET Core.

• Extensive experience developing REST APIs and microservices.

• Strong knowledge of Object-Oriented Programming (OOP), SOLID principles, and design patterns.

• Experience with SQL Server, T-SQL, stored procedures, and database optimization.

• Experience with Entity Framework / Entity Framework Core and LINQ.

• Strong understanding of JavaScript, HTML5, CSS3, and modern web development concepts.

• Experience with Git, Azure DevOps, Jenkins, or similar source control and CI/CD tools.

• Strong debugging, problem-solving, and analytical skills.

• Excellent communication and collaboration skills.

Preferred Skills

• Experience with Microsoft Azure or AWS cloud services.

• Knowledge of Angular, React, or other modern frontend frameworks.

• Experience with Docker and Kubernetes.

• Knowledge of messaging technologies such as Azure Service Bus, RabbitMQ, or Kafka.

• Experience with automated testing frameworks such as NUnit, xUnit, or MSTest.

• Experience working in large-scale enterprise or financial services environments.

• Familiarity with Agile development, DevOps practices, and cloud-native architecture.