Sr Developer –.Net Core 9 - Full Stack

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Team Overview
Seeking a Senior Developer that will operate as a member of a core team of specialists that are responsible for the delivery of complex enterprise level services leveraging the principles of a microservice architecture, and deployed using Kubernetes both on premise and off premise multi-cloud (AWS and Azure). This is a hybrid position and involves regular performance of job responsibilities virtually as well as in-person at an assigned TU office location for a minimum of two days a week.
Responsibilities
Role Overview And Core Responsibilities
Design, develop, and optimize core backend services using .NET 9.0 and above.
Architect and implement microservices following SOLID principles and standard design patterns.
Develop secure RESTful services, integrating OAuth2-based authentication & authorization.
Build efficient data access layers using SQL Server and Entity Framework.
Collaborate closely with architects, product owners, and cloud engineering teams to deliver robust platform capabilities.
Write clean, maintainable, testable code following industry best practices.
Support performance optimization, debugging, and production troubleshooting.
Skills
Strong hands-on experience with .NET 9.0 and above
Design Patterns, Microservices Architecture, SOLID Principles
Database: SQL, Entity Framework and LINQ, performance tuning
Security: OAuth2, JWT-based authentication
Experience in setting up pipelines(Azure DevOps/Jenkins/Harness) --- Secondary
Cloud Technologies(GCP/AWS) and Containerization - Docker & Kubernetes --- Secondary
Flexible and quick to adapt to new technologies(JAVA/FrontEnd) based on project requirements.
Required Knowledge And Experiences
Who We Are:
At TransUnion, we are dedicated to finding ways information can be used to help people make better and smarter decisions. As a trusted provider of global information solutions, our mission is to help people around the world access the opportunities that lead to a higher quality of life, by helping organizations optimize their risk-based decisions and enabling consumers to understand and manage their personal information. Because when people have access to more complete and multidimensional information, they can make more informed decisions and achieve great things.
Every day TransUnion offers our employees the tools and resources they need to find ways information can be used in diverse ways. Whether it is helping businesses better manage risk, providing better insights so a consumer can qualify for his first mortgage or working with law enforcement to make neighborhoods safer, we are improving the quality of life for individuals, families, communities and local economies around the world.
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability status, veteran status, marital status, citizenship status, sexual orientation, gender identity or any other characteristic protected by law.
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
Sr Developer, Applications Programming

Work arrangement
Hybrid