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Team Overview
The Application Development and Design Team within TransUnion's Global Technology organization is responsible for designing, developing, and enhancing business-critical consumer and enterprise applications that support TransUnion's global business and consumer solutions. The team enables efficient, scalable, and secure technology platforms while driving engineering excellence, innovation, and continuous improvement across the organization.This role is part of the Consumer Technology team and works closely with the Tech Lead, UK-based Software Architect, Test Lead, and cross-functional global technology teams to deliver high-quality software solutions aligned with the Consumer product roadmap. 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.
Role Overview And Core Responsibilities
As a Senior Software Developer, you will play a key role in designing, developing, testing, and supporting scalable applications that power TransUnion's consumer products. You will contribute to the delivery of strategic technology initiatives while ensuring adherence to engineering best practices, coding standards, and architectural principles.
- Design, develop, and maintain complex applications and APIs using C#, ASP.NET Framework, and ASP.NET Core, supporting strategic Consumer product initiatives.
- Partner with global technology teams, architects, and product stakeholders to translate business requirements into scalable and maintainable technical solutions.
- Deliver high-quality, testable, and production-ready code using Test-Driven Development (TDD) practices and automated testing frameworks.
- Participate actively in Agile ceremonies including sprint planning, estimations, retrospectives, and daily stand-ups to drive timely delivery of business outcomes.
- Ensure adherence to TransUnion architecture standards, design patterns, security requirements, and development best practices.
- Develop and maintain automated testing, build, deployment, and release processes using CI/CD tools and version control systems.
- Troubleshoot production issues, perform root cause analysis, and implement sustainable solutions to improve system reliability and performance.
- Collaborate with Quality Assurance teams to ensure solutions meet functional, regulatory, and performance requirements prior to release.
- Support continuous improvement initiatives by identifying opportunities to enhance development processes, frameworks, and engineering practices.
- Mentor junior developers through technical guidance, code reviews, knowledge sharing, and best-practice adoption.
Required Knowledge And Experiences
- 5-8 years of professional software development experience, including designing, building, and supporting enterprise-scale applications in Agile environments. This experience is essential for independently delivering complex technical solutions.
- Strong understanding of Software Development Life Cycle (SDLC), Agile methodologies (Scrum/Kanban), and Test-Driven Development (TDD) to ensure structured and high-quality software delivery.
- Experience developing and maintaining complex, business-critical applications with a focus on scalability, performance, maintainability, and reliability.
- Experience working with global or distributed development teams and collaborating with technical and business stakeholders to gather requirements, define solutions, and deliver outcomes.
- Proven ability to analyze business requirements, document technical solutions, solve complex problems, and contribute to continuous improvement initiatives.
- Bachelor's degree in Computer Science, Information Technology, Engineering, or a related discipline; equivalent professional experience demonstrating relevant technical expertise will also be considered.
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 Engineer, Applications Development
Skills Required
- 5-8 years' commercial experience of software engineering
- Experience in C# and supporting frameworks
- Experience in full framework ASP.Net API and Web sites
- Experience in Asp.Net Core APIs
- Experience in test automation frameworks such as NUnit, SpecFlow, Selenium
- Experience in the setup and maintenance of CI/CD pipelines (Git, TFS, Octopus Deploy)
- Experience of using a test driven approach to software engineering
- Experience developing complex systems and delivering testable, maintainable code
- Strong understanding of version control practices and release pipelines
- Experience of knowledge sharing and mentoring more junior colleagues
- Experience in JavaScript frameworks (React and/or Vue) and Jest
- Experience in SQL Server
- Experience in Azure
- Experience in microservice architecture and maintenance
- Experience of working in Scrum/Kanban Agile teams
What the Team is Saying
TransUnion Compensation & Benefits Highlights
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Healthcare Strength — Health coverage is described as strong, with multiple plan choices, reasonable deductibles, and access to mental‑health resources like Spring Health.
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Leave & Time Off Breadth — Flexible Time Off for salaried roles, PTO for hourly roles, paid holidays, wellness days, and hybrid flexibility underpin generous time‑away options.
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Parental & Family Support — Parental and caregiver benefits are emphasized, including 12 weeks of paid parental leave with a gradual return, adoption assistance, dependent‑care FSA, and Care@Work backup care from day one.
TransUnion Insights
What We Do
TransUnion is a global information and insights company that makes trust possible by ensuring that each consumer is reliably and safely represented in the marketplace. We do this by having an accurate and comprehensive picture of each person. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. Because of our work, organizations can better understand consumers in order to make more informed decisions, and earn their trust through great, personalized experiences, and the proactive extension of the right opportunities, tools and offers. In turn, consumers can be confident that their data identities will result in the opportunities they deserve. We make trust possible, so businesses and consumers can transact with confidence and achieve great things. We call this Information for Good®—it’s our purpose, and what drives us every day.
Why Work With Us
Our culture is welcoming, energetic and innovative. There’s an overall synergy that flows throughout TransUnion, creating a sense of unity in knowing that we’re all working to achieve the same overall goal. We’re dedicated to providing opportunities for our people to get involved and stay connected with their colleagues across the globe.
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TransUnion Teams
TransUnion Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
