Senior Developer (.NET Full Stack)

S R International•Phoenix, AZ

1d•Hybrid

About The Position

Maricopa County is seeking a Senior Developer to provide advanced technical development, translate architectural designs into implementation, and support enterprise application development. This role involves hands-on full-stack development, mentoring junior developers, and supporting modernization of legacy systems in an Agile environment.

Requirements

5+ years of .NET full stack development experience
Minimum 3+ years in software design, development, or support
Strong experience with: C#, ASP.NET MVC, ASP.NET Core, Web API
Angular (v8+), TypeScript, AngularJS migration
SQL Server (stored procedures, performance tuning)
Experience with: Docker containerization and Kubernetes (or similar platforms)
Microservices architecture and design patterns (SOLID, DI, Repository, Unit of Work)
REST APIs, middleware, and enterprise integration patterns
Experience with SSRS and Power BI reporting
Hands-on experience with Git or TFVC for source control
Strong understanding of Agile development methodologies

Nice To Haves

Experience in government, judicial, or public-sector systems
Familiarity with AI-assisted development tools and workflows
Experience with SignalR, IBM MQ, and real-time messaging systems
Experience with CI/CD pipelines and DevOps practices

Responsibilities

Design, develop, test, and maintain enterprise applications
Translate architectural designs into technical implementations
Develop SSRS and Power BI reports
Troubleshoot, debug, and resolve application issues
Support application deployment and production maintenance
Collaborate with developers, DBAs, and business analysts
Mentor junior developers and guide them through complex implementations
Participate in code reviews and best practice enforcement
Modernize legacy systems (AngularJS → Angular, .NET Framework → .NET Core)
Assist in integrating systems using APIs, messaging systems (IBM MQ), and SignalR