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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
Principal Test Engineer
About this Role
As a Principal Test Engineer, you will use your enthusiasm and deep knowledge of modern testing practices to help us deliver high‑quality, resilient products on our modernised, cloud‑hosted platform.
You will provide leadership for testing within product teams, with a particular focus on post‑release quality, live validation, and in‑life testing. You’ll work closely with engineering, product, and operational teams to ensure quality is maintained beyond deployment and that issues in live environments are detected, understood, and addressed effectively.
The role covers both new and evolving services deployed in the cloud, working with modern service‑based architectures and data platforms. You will define and continuously improve our testing practices and ways of working, mentoring and coaching others to ensure consistently high standards across the organisation.
You will support project and product teams by leading the testing effort to ensure the ongoing delivery of high‑quality products and services for TransUnion through the application of professional testing techniques, knowledge, and best practices.

Key Responsibilities
• Own and evolve test processes and procedures, with a strong emphasis on post‑release and in‑life testing, ensuring approaches are effective, pragmatic, and risk‑based
• Collaborate closely with other Principal Test Engineers to ensure consistency of practice, tooling, and leadership across the Test Community
• Act as a subject matter expert for testing and quality, advising teams and stakeholders across TransUnion on effective approaches to assuring quality in modern, cloud‑based systems
• Optimise testing activities across all stages of delivery, including:
• Pre‑release validation
• Post‑release verification
• Production issue analysis and prevention
• Provide leadership input into learning and development strategy, highlighting departmental needs and emerging industry trends to support organisational capability growth
• Contribute to the evolution of the Development Organisation Framework, including competencies aligned to modern testing, cloud platforms, and post‑release quality practices
• Support recruitment by:
• Defining interview approaches and scenarios
• Identifying capability gaps within the test function
• Participating in the interview process
• Coach and mentor individual testers, supporting personal development plans and career progression
• Take on a leadership role within product teams, contributing to (and where appropriate leading) planning, scheduling, and design activities
• Work with stakeholders to define test strategies appropriate to the product, release approach, and operational risk, ensuring alignment with wider test community strategies
• Ensure clear and effective status reporting, keeping stakeholders informed of quality, risk, and test outcomes using appropriate forums and communication channels
Skills and Experience
• Proven commercial experience leading and influencing teams involved in testing activities
• Strong ability to motivate, coach, and inspire teams, introducing improvements through the adoption of modern best practices
• Commercial experience testing cloud‑deployed, service‑based systems within an agile development lifecycle
• Passion for quality excellence and delivering the right outcomes, with strong interpersonal and communication skills
• Clear ownership of problems through investigation, resolution, and preventative improvement
• A collaborative, whole‑lifecycle approach to testing, including post‑release and production‑focused quality activities
• Experience with test automation techniques and supporting frameworks
• Willingness and ability to learn new technologies, platforms, and testing approaches as practices evolve
• Experience working with business and technical stakeholders to advise, promote, and consult on testing principles and quality risk
• Experience with BDD / ATDD approaches
• Strong technical skills related to test automation
• Experience testing APIs and web services
• Experience with non‑functional testing, such as performance, load, security, and usability testing, particularly in live or production‑like environments
Required Knowledge And Experiences
Skills and Experience
• Proven commercial experience leading and influencing teams involved in testing activities
• Strong ability to motivate, coach, and inspire teams, introducing improvements through the adoption of modern best practices
• Commercial experience testing cloud‑deployed, service‑based systems within an agile development lifecycle
• Passion for quality excellence and delivering the right outcomes, with strong interpersonal and communication skills
• Clear ownership of problems through investigation, resolution, and preventative improvement
• A collaborative, whole‑lifecycle approach to testing, including post‑release and production‑focused quality activities
• Experience with test automation techniques and supporting frameworks
• Willingness and ability to learn new technologies, platforms, and testing approaches as practices evolve
• Experience working with business and technical stakeholders to advise, promote, and consult on testing principles and quality risk
• Experience with BDD / ATDD approaches
• Strong technical skills related to test automation
• Experience testing APIs and web services
• Experience with non‑functional testing, such as performance, load, security, and usability testing, particularly in live or production‑like environments
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 Engineer, Development Ops
Skills Required
- Proven commercial experience leading and influencing teams involved in testing activities
- Experience testing cloud-deployed, service-based systems within an agile development lifecycle
- Experience with test automation techniques and supporting frameworks
- Strong technical skills related to test automation
- Experience testing APIs and web services
- Experience with BDD / ATDD approaches
- Experience with non-functional testing (performance, load, security, usability), particularly in live or production-like environments
- Ability to motivate, coach, and inspire teams and introduce modern testing best practices
- Clear ownership of problems through investigation, resolution, and preventative improvement
- Willingness and ability to learn new technologies, platforms, and testing approaches
What the Team is Saying
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.
