CRO QA Test Engineer

Summary

Location

Birmingham, London, Manchester, Reading

Job Family

Commercial

Job Type

Full Time

Posted Date

31-Mar-2026

As an Experimentation (CRO) QA Test Engineer, you will be working in a fast-paced, ever evolving, fun and friendly cross-functional squad environment. You are the owner of the testing process and automation, ensuring the testing frameworks and approaches taken are reliable and assuring the high quality of the system. You will be responsible for finding and reporting bugs and issues on newly developed experimentation campaigns as well as confirming the stability of established systems. In this role, you should have a keen eye for detail and excellent communication skills.

You will need manual software testing experience along with experience working with Javascript, HTML, CSS, Analytics, Audiences and an awareness of the security risks posed using some software engineering patterns.

Your focus will be on building short-term, robust and flexible tests cases and scenarios while balancing automation and manual exploratory testing to help to make the CRO squads’ campaigns as risk-free as possible.

Who we are

The UK’s fastest broadband network. The nation’s best-loved mobile brand. And, one of the UK's biggest companies too. We put our customers first, making life simpler, smoother, and more joyful. With big ambitions and a brilliant team, we’re building a more connected future for everyone.

Our ways of working

We’re a flexible-first organisation, because we know people do their best work when they have choice and clarity. To support meaningful collaboration, we ask everyone to spend at least eight days each month connecting in person.

That doesn’t just mean time in the office, it could be team meetings, offsites, volunteering days, cross-functional projects, or away days - anywhere meaningful collaboration happens. What matters is making those moments purposeful, so when we come together, it really counts.

Accessible, inclusive and equitable for all

Virgin Media O2 is an equal opportunities employer and we're working hard to remove bias and barriers for our people and candidates. So, we build equity and inclusion into everything we do, from the policies we craft to the relationships we shape. We support and encourage you to be your authentic self throughout your application journey with us.

The must haves

In order to be considered, you must have the following experience;

• Strong understanding of A/B and multivariate testing methodologies.
• Hands-on experience testing in modern web environments (e.g., Angular, Java, HTML, CSS, CMS platforms).
• Experience scripting in languages such as JavaScript, Python, Ruby or Perl.
• Proficient with operational and incident management tools (e.g., Jira, OpsGenie, PagerDuty, Service Desk).
• Experience securing applications, platforms, or tooling, and working across multiple cloud environments (e.g., AWS, GCP).
• Experience with process automation and enterprise/open-source monitoring tools (e.g., Splunk/ELK, Truesight, Dynatrace), plus an understanding of network stacks and protocols.
  
  
  

The other stuff we are looking for

We'd also love you to bring;

• Experience contributing to or working within SRE/DevOps‑style practices, including continuous improvement, reliability engineering, and scalable automation.
  
  
  

What's in it for you

Our goal is to celebrate our people, their lives and everything in-between. We aim to create a culture that empowers everyone to bring the best versions of themselves to work each and every day. We believe the most inclusive and diverse culture makes for a better business and a brighter world.

Working at Virgin Media O2, you get a bumper reward package bursting with benefits, and loads of extras you can add if you’d like to. These are designed to support both you and your loved ones, making sure that you’re covered no matter what life throws your way.

Next steps

If we feel like a place where you can belong, we'd love to learn more about you as a person and your experience to date. Once you've submitted an application the next steps of the process, if successful, are likely to include a two stage interview process.

When you apply, you'll be asked about any adjustments you might need to support the recruitment process. Let us know, and we'll be sure to discuss it with you.

Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert, therefore we may bring the closing date forward. We encourage all interested applicants to apply as soon as possible. If you’re offered a job with us, it will be conditional, based on the passing of background checks. All roles require a criminal record check and some roles need a financial probity check. Your recruiter can provide you with more information if needed.

Thanks for your patience and for showing an interest in joining the Virgin Media O2 family.

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