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For Companies At a Glance
- Tasks: Design and steer signalling projects for core voice networks, ensuring customer-centric outcomes.
- Company: Join Virgin Media O2, the UK's fastest broadband network and a beloved mobile brand.
- Benefits: Enjoy a fantastic reward package with flexible benefits to support you and your loved ones.
- Why this job: Be part of a diverse team that values inclusion and empowers you to be your authentic self.
- Qualifications: Experience in cellular networks and strong analytical skills are essential for this role.
- Other info: This is an entry-level position with opportunities for growth and development.
The predicted salary is between 36000 - 60000 £ per year.
Overview
Join to apply for the Core Voice Signalling Designer role at Virgin Media O2.
Location: Birmingham, Leeds, London, Manchester, Peterborough, Reading
Job Family: Digital & Technology
Job Type: Full Time
Posted Date: 05-Sep-2025
Ref #: 68455
Summary
We have a great new role for a Core Voice Signalling Designer to join our Signalling Design team. You will help design and steer designs for signalling-related projects, directing project teams to ensure optimal delivery outcomes. The Signalling Design team drives design changes across all impacted network functions as part of a project team, ensuring the overall design is customer-centric, meets customer requirements, and is robust. We are looking for a candidate experienced in the design and configuration of Ericsson IP-STP and DSC signalling products. You will work independently, escalating issues to the Signalling Engineering Manager as dictated by complexity and priority.
Key responsibilities
- Working within the Design team to produce the Signalling Design requirements pertaining to core voice network platforms. This role encompasses the support of service designs on the Voice Core network, including IP STP, DSC (DRA, DEA), and IMS/legacy core voice network nodes.
- Helping with the development of automated test capabilities for both 5GSA and legacy nodes. Working with the Core Test team to develop automated testing for call flows to speed up all aspects of testing.
- Producing high and low level design documents, including capacity dimensioning and modelling with attention to surrounding network elements. All designs produced are to meet fraud and security requirements and liaison with vendors and TSA as required.
Required qualifications and experience
- Ericsson IP-STP design and configuration experience
- Ericsson DSC design and configuration experience
- Working knowledge of the command structure and ability to navigate Ericsson documentation for both platforms
- Good experience of cellular networks (2G, 3G, 4G, and IMS), networking principles, and related signalling systems and protocols (SS7, SIGTRAN, SIP, Diameter, MAP)
- Detailed understanding of technology standards, traffic, switching, and radio theory/principles
- Strong analytical skills and practical judgement to navigate complex requirements and deliver satisfactory business solutions
The other things we are looking for
- An enthusiastic, self-motivated team player with drive to succeed
- Excellent communication skills with the ability to explain technical concepts and design principles
- A strong collaborator who can work with multi-disciplined internal teams and external customers
- Self-discipline to work independently and meet tight deadlines
What\’s in it for you
Virgin Media O2 aims to celebrate our people and provide a culture that empowers everyone to bring their best selves to work. A competitive reward package and benefits are available to support you and your loved ones.
Next steps
If we think you could belong, we would like to learn more about you and your experience. If successful, the next steps are likely to include a competency interview. When you apply, let us know if you need adjustments to support the recruitment process. Applications may close early as the advert progresses. All roles require background checks and, where applicable, a financial probity check.
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Core Voice Signalling Designer employer: Virgin Media O2
Contact Detail:
Virgin Media O2 Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Core Voice Signalling Designer
✨Tip Number 1
Familiarise yourself with the latest trends and technologies in cellular networks, especially 2G, 3G, 4G, and IMS. This knowledge will not only help you during interviews but also demonstrate your commitment to staying updated in a rapidly evolving field.
✨Tip Number 2
Network with professionals in the telecommunications industry, particularly those who work with signalling systems and protocols. Engaging with these individuals can provide valuable insights and potentially lead to referrals that could boost your application.
✨Tip Number 3
Prepare to discuss specific projects or experiences where you've successfully collaborated with multi-disciplined teams. Highlighting your teamwork skills will resonate well with the collaborative culture at Virgin Media O2.
✨Tip Number 4
Showcase your analytical skills by preparing examples of how you've navigated complex requirements in past roles. Being able to articulate your problem-solving process will set you apart as a candidate who can handle the challenges of the Core Voice Signalling Designer position.
We think you need these skills to ace Core Voice Signalling Designer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights relevant experience in cellular networks and signalling systems. Use specific examples that demonstrate your understanding of technologies like SS7, SIP, and Diameter.
Craft a Compelling Cover Letter: Write a cover letter that showcases your enthusiasm for the role and the company. Mention how your skills align with the responsibilities outlined in the job description, particularly your ability to work independently and as part of a team.
Highlight Analytical Skills: In your application, emphasise your strong analytical skills and practical judgement. Provide examples of how you've navigated complex requirements in past projects to achieve successful outcomes.
Showcase Communication Skills: Demonstrate your excellent communication abilities by explaining how you have effectively interfaced with technical teams or clients in previous roles. This is crucial for a position that requires collaboration across various disciplines.
How to prepare for a job interview at Virgin Media O2
✨Understand the Core Voice Network
Make sure you have a solid grasp of cellular networks and signalling systems like SS7, SIP, and Diameter. Be prepared to discuss how these technologies apply to the role and any relevant projects you've worked on.
✨Showcase Your Analytical Skills
Highlight your ability to analyse complex requirements and provide practical solutions. Prepare examples from your past experiences where you successfully navigated conflicting requirements to achieve a positive outcome.
✨Communicate Technical Concepts Clearly
Practice explaining technical concepts in simple terms. The interviewers will want to see that you can communicate effectively with both technical and non-technical team members.
✨Demonstrate Team Collaboration
Be ready to share examples of how you've collaborated with multi-disciplined teams. Emphasise your ability to work independently as well, showcasing your self-discipline and time management skills.
