Core Voice Signalling Designer - Ericsson IP-STP and DSC

Virgin Media; Greater London; On-site; GBP 60,000 - 75,000; Full time

Job summary

A leading telecommunications company in Greater London is seeking a Core Voice Signalling Designer to join its Signalling Design team. The candidate will design signalling projects, focusing on Ericsson IP-STP and DSC products. Responsibilities include creating design documents, developing automated test capabilities, and ensuring designs meet customer requirements. Strong analytical and communication skills are essential, along with a solid understanding of cellular networks and signalling protocols. A competitive benefits package is offered.

Benefits

Comprehensive benefits package

Inclusive work culture

Qualifications

• Experience in design and configuration of Ericsson IP-STP and DSC products.
• Ability to navigate Ericsson documentation effectively.
• Detailed understanding of technology standards and networking principles.

Responsibilities

• Produce signalling design requirements for core voice network platforms.
• Develop automated testing capabilities for 5GSA and legacy nodes.
• Create high and low level design documents, ensuring compliance with security standards.

Skills

Ericsson IP-STP design and configuration experience

Ericsson DSC design and configuration experience

Knowledge of cellular networks (2G, 3G, 4G, IMS)

Understanding of SS7, SIGTRAN, SIP, Diameter, MAP

Strong analytical skills

Excellent communication skills

Job description

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. To include capacity dimension and modelling with close attention to surrounding network elements. All designs produced are to meet fraud and security requirements and liaison with vendors and TSA as required.

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

• Ericsson IP-STP design and configuration experience.
• Ericsson DSC design and configuration experience.
• Must be able to demonstrate a working knowledge of the command structure and ability to navigate the Ericsson documentation associated with both platforms mentioned above.
• Good experience of cellular networks (2G, 3G, 4G, and IMS), networking principles, and associated signalling systems and protocols, including SS7, SIGTRAN, SIP, Diameter, and MAP
• A detailed understanding of technology standards, traffic, switching, and radio theory / principles.
• Strong analytical skills and sound practical judgement and a need to understand complex and often conflicting requirements, to chart a course through to a satisfactory business solution.

The other stuff we are looking for

• An enthusiastic, self‑motivated team player with drive to succeed
• Excellent communications skills with a proven ability to interface and explain detailed technical concepts and design principles.
• A strong collaborator, able to work with multi‑disciplined internal teams across relevant areas of the business and external customers
• You will often to be asked to work alone so strong self‑discipline is a must to meet tight deadlines.

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.