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Team Overview
TransUnion UK provides the data, analytics and software that enable businesses to build more valuable customer relationships. We specialise in managing consumer data for businesses across every sector.We focus on developing innovative products and services that help businesses make smarter and more informed decisions throughout the customer lifecycle.
We’re TransUnion and we believe in Information for Good 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
Senior Test EngineerAbout this Role:
As a Senior Test Engineer, you will play a key role in ensuring the quality and reliability of our modernised, cloud‑hosted platform. You will work as part of a product team, contributing to testing activities across the delivery lifecycle, with a growing focus on post‑release and in‑life quality.
You’ll be hands‑on in testing new and existing services, helping to validate changes before and after release, and supporting the investigation of issues identified in live environments. You’ll work closely with engineers, product managers, and other testers to ensure quality risks are understood and addressed early.
This role offers the opportunity to develop deeper expertise in modern testing practices, cloud‑based systems, and production‑focused quality, while being supported by Lead and Principal Test Engineers.

Key Responsibilities
• Contribute to testing activities across the delivery lifecycle, including:
• Story and feature testing
• Regression and exploratory testing
• Post‑release verification and validation
• Support post‑release testing activities, such as:
• Smoke and health checks
• Validation of deployed changes
• Investigation and reproduction of live defects
• Work with engineers and other team members to identify quality risks and agree appropriate test approaches
• Execute and maintain automated and manual tests in line with agreed team strategies
• Use logs, monitoring, and other production signals (where appropriate) to support defect investigation and quality assessment
• Ensure test results, risks, and progress are clearly communicated within the product team
• Contribute ideas and improvements to testing practices, tools, and ways of working
• Support knowledge sharing within the test community and actively learn from more senior testers

Skills and Experience
• Commercial experience working in a testing role within an agile development environment
• Experience testing service‑based or cloud‑deployed systems
• A solid understanding of testing principles and a passion for delivering quality outcomes
• Experience with test automation techniques and supporting frameworks
• Experience testing APIs and web services
• Familiarity with BDD / ATDD approaches
• Experience with non‑functional testing (e.g. performance, load, security, or usability), or a strong interest in developing these skills
• Good problem‑solving skills, with a willingness to take ownership of issues and see them through to resolution
• Strong communication skills and a collaborative mindset
• Willingness to learn new technologies, tools, and testing approaches as the platform evolves
What This Role Is Not
This role does not carry overall test leadership or community ownership responsibilities. Strategic direction, cross‑team alignment, and organisational‑level decision making are supported by Lead and Principal Test Engineers.

Progression
This role provides a clear pathway towards Lead or Principal Test Engineer, with opportunities to grow technical depth, influence, and responsibility over time.
Required Knowledge And Experiences
Skills and Experience
• Commercial experience working in a testing role within an agile development environment
• Experience testing service‑based or cloud‑deployed systems
• A solid understanding of testing principles and a passion for delivering quality outcomes
• Experience with test automation techniques and supporting frameworks
• Experience testing APIs and web services
• Familiarity with BDD / ATDD approaches
• Experience with non‑functional testing (e.g. performance, load, security, or usability), or a strong interest in developing these skills
• Good problem‑solving skills, with a willingness to take ownership of issues and see them through to resolution
• Strong communication skills and a collaborative mindset
• Willingness to learn new technologies, tools, and testing approaches as the platform evolves
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, Development Ops
What the Team is Saying
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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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Hybrid Workspace
Employees engage in a combination of remote and on-site work.
