Sr Developer, C# .NET & APIs

Required Knowledge and Experiences

5+ years of professional software development experience building and supporting enterprise applications, with a strong focus on backend development using object-oriented programming principles.

Strong understanding of software design patterns, data structures, algorithms, and application architecture, enabling the development of scalable and maintainable solutions.

Experience working in Agile Scrum environments, including sprint planning, backlog grooming, estimation, and iterative delivery of business value.

Experience implementing automated testing and CI/CD practices, ensuring software quality, release reliability, and operational efficiency.

Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field, or equivalent practical experience, providing the foundational knowledge necessary to design and deliver complex software solutions.

Required Technical Skills

C# and .NET Framework/.NET Core for developing enterprise backend applications and services.

REST (Representational State Transfer) APIs and Web Services, including designing, developing, and integrating service-based architectures.

SQL and relational databases (SQL Server preferred) for data access, performance tuning, and application support.

Git version control and modern development workflows, including branching, pull requests, and collaborative code reviews.

CI/CD (Continuous Integration/Continuous Deployment) tools and practices, such as Azure DevOps, GitHub Actions, Jenkins, or equivalent platforms.

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:

Experience with cloud platforms such as Microsoft Azure, Amazon Web Services (AWS), or Google Cloud Platform (GCP).

Experience building and deploying containerized applications using Docker and Kubernetes.

Knowledge of SOAP and REST web services and enterprise system integrations.

Experience working with large-scale data processing systems and high-volume transactional applications.

Familiarity with observability and monitoring tools, including application performance monitoring, logging, and alerting solutions.

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.

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