Senior Software Developer

Description

We are looking for an experienced Senior Software Developer to help create and enhance the core applications that support both business operations and customer-facing products in St. Paul. This position focuses on building dependable backend solutions, improving system performance, and partnering with technical teams to deliver well-designed software. The ideal candidate brings strong expertise in C# and .NET technologies, along with a practical approach to API development, integration work, and modern engineering practices.

Responsibilities:

• Create and support backend applications and services in C# and .NET with an emphasis on stability, scalability, and maintainability.

• Develop and refine REST-based interfaces, ensuring clear API design and accurate documentation through OpenAPI and Swagger standards.

• Use AI-enabled development tools to streamline coding, testing, and delivery while maintaining high quality standards.

• Improve application efficiency by identifying opportunities to strengthen performance, resilience, and overall system responsiveness.

• Connect software platforms with internal business systems and third-party technologies to enable reliable data exchange and functionality.

• Participate in technical design discussions and help advance architecture, modernization efforts, and engineering best practices across the environment.

• Investigate complex production problems, determine root causes, and implement effective long-term solutions.

• Contribute to development work involving containerized services, relational databases, source control workflows, and frontend collaboration with React

Requirements

• At least 7 years of software development experience with a strong focus on backend engineering.

• Advanced proficiency in C#, .NET, ASP.NET, AI and related Microsoft development frameworks.

• Hands-on experience building RESTful APIs and documenting services with OpenAPI or Swagger.

• Solid knowledge of relational database development, including PostgreSQL, MySQL, and SQL-based data modeling.

• Familiarity with containerized application environments and modern source control practices using GitHub.

• Experience working with JavaScript and React in support of full-stack or cross-functional development efforts.

• Demonstrated ability to troubleshoot complex application issues and collaborate effectively with internal stakeholders and external partners. AI

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Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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