Senior Net Software Developer Jobs in Grand Rapids, MI

Hastings Insurance is seeking an Integration Developer to help build, enhance, and support the core APIs and microservices connecting our Property & Casualty systems. Working alongside senior developers and enterprise architects, you’ll help ensure data flows reliably across our enterprise footprint while actively contributing to our ongoing system modernization.

This role is ideal for an intellectually curious mid-level developer with solid backend C# fundamentals who wants to deepen their hands-on experience with modern microservices, containerized deployments, and AI-assisted development workflows.

• Build & Maintain | Develop, test, and deploy maintainable microservices, REST APIs, and integration components connecting core P&C applications.
• Modernize Architecture | Work closely with senior developers to expand our catalog of decoupled backend services and adopt containerized deployment practices.
• Support System Reliability | Assist in troubleshooting, maintaining, and enhancing existing integration workflows to ensure system performance and data integrity.
• Adopt Modern Tooling | Utilize AI-assisted development practices (e.g., leveraging AI tools for coding, unit testing, and debugging) to increase daily productivity and code quality.
• Collaborate & Estimate | Translate functional requirements into technical specs, participate in code reviews, and work with senior team members to provide accurate development estimates.

• Technical Foundation | 2+ years of hands-on backend software development experience focused on API development, C#, and relational databases.
• Modern .NET & C# | Solid working knowledge of C# and modern .NET frameworks (with a focus on staying current with modern Microsoft releases like .NET 8/10).
• Architecture & Messaging | Familiarity with microservice concepts, RESTful API design, database structures, and asynchronous messaging patterns.
• Intellectual Curiosity & Problem-Solving | A natural drive to dig into complex systems, understand how things work at a fundamental level, and continuously learn new technologies and engineering practices.
• Integration Range | Adaptability working across integration technologies spanning different framework generations as system requirements dictate.
• Containerization Readiness | Exposure to or interest in container technologies (e.g., Docker) and learning containerized deployment pipelines.
• Modern SDLC & Tooling | Practical understanding of standard software engineering practices, including Git, automated unit testing, CI/CD, and developer productivity tools.
• Domain Experience (Nice to Have) | Prior experience in Property & Casualty (P&C) insurance or financial systems is a plus, but strong backend coding fundamentals come first.
  

This is a full-time position working Monday through Friday, 8:00 a.m. to 4:30 p.m. The role may be performed onsite at our Hastings, Michigan headquarters or in a hybrid arrangement. We will also consider remote candidates who reside in one of our operating states: Michigan, Ohio, Indiana, Illinois, or Wisconsin. Additional states may be considered if the candidate's background is otherwise strong. 

For more than 135 years, Hastings Insurance has helped individuals, families, and businesses protect what matters most. As a trusted partner to independent agents and policyholders, we've earned a reputation for financial strength, exceptional service, and long-term stability, including an A (Excellent) financial strength rating from A.M. Best.

While we're proud of our history, we're equally focused on the future. We're investing in technology, strengthening partnerships with independent agents, and continuously evolving our products and services to meet the changing needs of our customers.

Just as importantly, we're investing in our people. Employees enjoy a collaborative, down-to-earth culture where initiative is valued, growth is encouraged, and good work is recognized. We offer competitive pay and benefits, including a 401(k) with company matching contributions, generous paid time off, tuition and professional development assistance, and company performance-based incentive compensation opportunities.

At Hastings Insurance, we believe our people are our greatest strength. We foster a workplace where employees are treated with respect, supported in their growth, and empowered to contribute. We know that diverse perspectives lead to stronger collaboration, better decisions, and better outcomes for our customers and communities.

We are proud to be an equal opportunity employer. Employment decisions are based on business needs, job requirements, and individual qualifications, without regard to any legally protected characteristic.

If you require a reasonable accommodation during the application or interview process, please contact our Talent Acquisition team at 800-442-8277.