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Summary

Location
Slough
Job Family
Digital & Technology
Job Type
Full Time
Posted Date
23-Sep-2025
Ref #
69407

We have a new role for a Core Voice Services Principal Test Analyst to join our Core Engineering team based from our Slough Test-Lab.

The Core Voice Services Principal Test Analyst is responsible for leading the upgrades into VMO2 Core Test-Lab. The role involves testing and integrating new software deployments and fault fixes, coordinating with vendor and project team ensuring faults are tracked. Working closely with key stakeholders such as design and operations to ensure a dependable delivery into live network which meets customer requirements. Providing support and maintenance activities on the VMO2 Test-Lab.

This role requires an excellent understanding and appreciation for the cellular networks and networking principles (IMS, 5G, 4G, UMTS, GSM, IMS) including protocols and services especially MTAS, CSCF, PCRF.

Key Responsibilities

  • Test Lead within the team to manage project deliver for solutions coming into Core Voice Test Team, co-ordinating testing resources where applicable and test coverage.
  • After review of Supplier Quality Acceptance Testing review vendor Release Notes and MOP’s co-ordinating with design & operations. Managing the collective feedback as required through to conclusion.
  • To plan, execute and record Element Acceptance Testing within the test environment, or on a single element in the live network. Device and SIM management where required for new project delivery.
  • Direct responsibility to manage and produce Test Strategy, create Test Cases exiting project delivery or vendor fault fix with TER, considering exit criteria are met or risk mitigation put in place.
  • To arrange, execute and record the FOA (First Office Application) of a release into the live network. Co-ordination where required for SIMS and devices to run regression testing and support operations.
  • To perform on-going build, support and maintenance activities on the VMO2 Test-Bed. Ensuring all solutions are stable, alarms monitored and services available for wider test teams.
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.

Diverse, high performing teams - jam packed with serious talent. Together, we offer the UK more choice and better value, through our boundary-pushing, customer-championing values and ambitions.

Together, we are Virgin Media O2, and we can't wait to see what you can do.

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
  • An excellent understanding and appreciation for the cellular networks and networking principles (IMS, 5G, 4G, UMTS, GSM, IMS) including protocols and services especially MTAS, CSCF, PCRF.
  • Excellent knowledge and practical experience of network, signalling & protocol monitoring and management tools (Empirix).
  • Strong analytical skills and sound practical judgement are required to understand complex and often conflicting requirements, seeing issues independently through to resolution.
  • Proven track record in production of accurate and complete technical requirements specifications, crafting clear, unambiguous documents that align with both business needs and vendor capabilities.
  • An enthusiastic self-motivated team player with drive to succeed.
The other stuff we are looking for
  • Experience of managing the vendor relationship is required, with the ability to take ownership of issues and drive these through to resolution.
  • Works independently, with guidance in only the most complex situations.
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 technical and competency based interview.

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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