Data Engineer - .NET Web Development

Experienced
Full time
JR-142387
Madison, WI
Posted 7/1/2026
Job description
Sentry Insurance is seeking a Data Engineer - .NET Web Development to join our team in our Middleton, WI office location.

The Data Engineer - .NET Web Development will be responsible for designing, planning, implementing, and testing a custom-built web application for Sentry's data lake solution. A critical component of our cloud-based data lake, the application manages all metadata and acts as the presentation layer for the entire ecosystem.  You will implement scalable, resilient, and maintainable features. You will ensure data accuracy, integrity, and security. You will monitor, troubleshoot, and resolve user issues and code defects.

At Sentry, we’re more than just insurance—and we can offer you more than just a job. We want you to enjoy a career with us, where you’re in the driver’s seat of your career path with access to resources to help you succeed personally and professionally.

What You’ll Do

You’ll be a valuable contributor to our team. As a Sentry associate, we believe in your skills and knowledge. Your input and participation matters. You’ll have the opportunity to:

  • Innovate: Through our agile development process, you’ll have the opportunity to apply your creativity and innovation to drive new solutions.

  • Learn: Sentry provides several resources to help you further your career and continue your personal development, including Sentry University, LinkedIn Learning, and peer-led educational sessions and communities.

  • Grow: Sentry provides many opportunities to grow in your career. Through meaningful, ongoing conversations around growth and development, we encourage all associates to take ownership in their career path.

  • Contribute: As a Data Engineer - .NET Web Development, you will:  

    • Design and develop technical solutions to meet product requirements effectively.

    • Utilize knowledge and understanding of technical and business domains to apply effective solutions.

    • Understand and applies technical best practices.

    • Actively participate in team delivery functions such as design reviews, code reviews, and other collaborative activities.

    • Leverage understanding of relevant domains to enable effective decision-making.

    • Provide mentorship and fosters the professional growth and development of other engineers.

    • Participate in on-call rotations to provide 24/7 support for critical systems and capabilities.

    • Perform other job-related duties as assigned from time to time.

  • What it Takes:

    • Bachelors Degree in Data Engineering, Computer Science, or a related field.

    • Minimum of 2 years of data engineering experience. As part of the 2 years of data engineering experience required, the individual must have:

      • At least two years of experience with programming languages and frameworks relevant to the role including: Microsoft .NET, C#, REST API, JavaScript, ASP.NET MVC, HTML, CSS, and SQL Server.

      • Minimum of two years of experience developing code in the following IDEs: Microsoft Visual Studio, Microsoft Visual Studio Code, and Microsoft SQL Server Management Studio.

      • At least two years of experience using tools and systems relevant to the role including: Git, Postman, Bootstrap, and AutoMapper.

      • At least two years developing software following agile methodology.

      • At least two years of experience applying software development design. principles and best practices relevant to the role including: Object-Oriented Programming Principles, SOLID Design Principles, and Clean Architect.

What You’ll Receive

You can enjoy a complete benefits package, including generous paid time off, 8% 401(k) match, matching charitable gift program, bonus plan based on company performance, meal stipends, associate discounts, volunteer time off and more!

About Sentry

Our Background: We’re part of one of the largest and most financially secure mutual insurance groups in the nation. We’ve earned an A+ rating from AM Best every year since 1992. Our associates bring together diverse backgrounds, experiences, and skillsets to make Sentry who we are. We’re honored to earn a spot on Forbes list of America's Best Midsize Employers, joining a select group of 400 companies. We’re in the business of helping others, and that includes the communities where we live and work. Our annual United Way campaign has raised more than $1 million for the past several years.  

How You’ll Apply

We’d love for you to join us. Please complete your online application and upload your resume on our Careers site. If you have applied with us before, you only need to provide your email address and password. If this is your first time applying with Sentry, please create an account.

If you have specific questions regarding the position, application process, or are interested in learning more about Sentry, please reach out to Katelynne Rivera, Talent Acquisition Specialist Sr.

Get ready to own your future at Sentry. Your opportunity awaits.

Talent Acquisition Specialist

Thank you for your interest in Sentry!

Katelynne Rivera

Katelynne.Rivera@Sentry.com

Equal Employment Opportunity

Sentry is an Equal Opportunity Employer. It is our policy that there be no discrimination in employment based on race, color, national origin, religion, sex, disability, age, marital status, or sexual orientation.

My Sentry experience
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