Senior .NET Developer

TransUnion's Job Applicant Privacy Notice Team Overview The DHI Information Technology Online Scrum Team supports TransUnion’s DHI business unit by building, maintaining, and modernizing secure software applications that help enable digital insurance and telematics capabilities. The team works closely with partners across Insurance, Product Management, Project Management, and technology leadership to deliver scalable, reliable solutions that support business growth and operational effectiveness. Reporting to the Manager, Software Development. This is a remote position which may require occasional in-person attendance at work-related events at the discretion of management. Role Overview And Core Responsibilities Lead development efforts for key DHI Information Technology software applications and frameworks, including the new TransUnion Telematics project, to support business priorities across Insurance, Product Management, and Project Management. Serve as a technical leader for the DHI Information Technology Online Scrum Team, helping guide solution design, architecture decisions, delivery planning, and engineering best practices. Design, develop, test, troubleshoot, maintain, and support secure enterprise applications using the Microsoft .NET framework and modern software engineering practices. Partner with stakeholders and senior leaders to define technical direction, align development work to business outcomes, and help prioritize complex initiatives in a fast-paced delivery environment. Build and support complex integrations and external connections with third-party business partners, with a focus on reliability, scalability, performance, and security. Maintain and enhance end-to-end continuous integration and continuous delivery (CI/CD) pipelines, including automated testing, repeatable deployments, and continuous security scanning across environments. Apply a security-first software development lifecycle (SDLC) approach by using secure coding practices, supporting vulnerability remediation, and aligning work to internal policies, regulatory expectations, and industry standards. Research, evaluate, and recommend technologies, tools, and design approaches that can improve development productivity, application performance, maintainability, and cloud cost optimization. Identify, investigate, and resolve software defects and application issues in partnership with business users, technology teams, and cross-functional stakeholders. Required Knowledge And Experiences Bachelor’s degree or master’s degree in Computer Science, Information Technology (IT), Information Systems (IS), or a related field, or equivalent practical experience, to support complex enterprise software design and delivery. 5 to 8 years of experience in software development, software product engineering, or software consulting, including hands-on experience creating and maintaining applications using the Microsoft .NET technology stack. Experience translating stakeholder requirements into technical specifications, estimates, application deliverables, and maintainable software solutions. Experience working with business users and cross-functional stakeholders to troubleshoot application issues, support existing systems, and deliver improvements aligned to business needs. Strong understanding of secure software development practices, sensitive data handling, and compliance-minded engineering to support systems that may involve regulated or confidential information. Required Technical Skills Microsoft .NET framework, .NET Core 5 or 6, C#, Active Server Pages .NET Model-View-Controller ( MVC), Active Server Pages .NET Web Application Programming Interface ( Web API), and Microsoft Visual Studio. Relational database development using Microsoft SQL Server, PostgreSQL, Structured Query Language (SQL), schema design, querying, data access layers, and data integrity practices. Continuous integration and continuous delivery (CI/CD), automated testing, deployment pipelines, and secure software development lifecycle (SDLC) practices. Cloud application development and operations, with experience in Amazon Web Services (AWS) preferred based on the role requirements provided. Distributed systems, application performance optimization, complex integrations, external partner connections, and enterprise-grade troubleshooting. Preferred Skills We're also looking for the preferred skills below. Whether you are proficient or could use some brushing up, we're happy to support your career development and growth in: Developing and supporting .NET Core applications running on Linux-based environments. Applying design patterns, dependency injection patterns, and related frameworks such as Autofac, Ninject, or Microsoft Unity. Test-driven development (TDD), including writing testable code and improving automated test coverage. Familiarity with Health Insurance Portability and Accountability Act (HIPAA) and Payment Card Industry (PCI) security requirements. Cloud technologies, cloud cost optimization, and emerging tools that improve software reliability, scalability, and engineering productivity. #LI-MR1 TransUnion Overview: At TransUnion, we encourage and are committed to creating a real, positive impact and shared sense of purpose within our Workforce for Good , which empowers our people to grow, innovate and contribute to a better future for our communities and customers. We strive to build an environment where our associates are in the driver’s seat of their professional development— while having access to help along the way. We recognize that success comes when our associates thrive both professionally and personally; that’s why we prioritize work/life flexibility and offer resources for our teams across the globe to collaborate and drive excellence. Be a part of our Workforce for Good – you’ll work with great people, pioneering products and cutting-edge technology. TransUnion Job Title Lead Developer, Software Development