Senior .NET Developer – C# / .NET Core – 100% Onsite Dallas, TX

Location: Dallas, TX
Work Arrangement: 100% Onsite – 5 days per week

We are looking for an experienced .NET Developer to design, develop, and support enterprise web applications. The ideal candidate will have strong hands-on experience with C#, .NET/.NET Core, ASP.NET Core, REST APIs, SQL, and modern frontend technologies.

Responsibilities

• Design, develop, test, and maintain scalable .NET applications.
• Develop backend services and RESTful APIs using C# and ASP.NET Core.
• Build and maintain web applications using modern frontend frameworks.
• Work with SQL databases, stored procedures, and data-access technologies.
• Participate in application design, code reviews, testing, and deployments.
• Troubleshoot production issues and improve application performance.
• Collaborate with business analysts, QA, and other development teams.
• Follow coding, security, and software-development best practices.

Required Skills

• 9+ years of software development experience.
• Strong C# and .NET/.NET Core development experience.
• ASP.NET Core / Web API.
• RESTful APIs and microservices.
• SQL Server and strong SQL skills.
• Entity Framework / Entity Framework Core.
• JavaScript / TypeScript.
• Experience with Angular or React.
• Object-oriented programming and design principles.
• Git/source-control experience.
• Unit testing and automated testing.
• CI/CD experience.
• Strong debugging and problem-solving skills.

Preferred Skills

• Azure or AWS cloud experience.
• Docker and Kubernetes.
• Azure DevOps, Jenkins, or GitLab CI/CD.
• Microservices architecture.
• Messaging technologies such as Kafka or RabbitMQ.
• Performance tuning and application-security experience.