Signaling Design Engineer - Telecommunications

Are you looking for an exciting new opportunity? 

Join a global network technology consultancy with decades of experience delivering end to end, multi-vendor networking services and automation software solutions. Backed by a leading international technology group, the organisation partners with telecommunications providers, enterprises, and digital infrastructure organisations to deliver complex network transformation projects across global markets.

The organisation is looking for an experienced Signaling Design Engineer to join the Core Network Engineering team. This role plays a pivotal part in designing and evolving the voice signaling platforms, shaping the future of both legacy and next-generation mobile networks. Working within a high-performing design team, the Signaling Design Engineer own signaling designs from concept through delivery, ensuring solutions are scalable, secure, customer-focused, and aligned with business objectives.

If you would like to learn more about this opportunity, feel free to reach out and apply today!

Responsibilities: 

• Produce high and low-level designs for core voice signalling platforms.
• Lead signalling design activities across projects involving IP STP, DSC (DRA/DEA), IMS and legacy voice core networks.
• Define design requirements, capacity models and network evolution plans.
• Develop and support automated test capabilities for 5G Standalone (5G SA) and legacy core network nodes.
• Work closely with the Core Test team to automate call flow testing and improve delivery efficiency.
• Produce Statements of Requirements (SoRs), review supplier Statements of Compliance (SoCs), Statements of Work (SoWs) and technical proposals.
• Ensure designs meet security, fraud prevention and operational standards.
• Collaborate with vendors and internal engineering teams to support network transformation initiatives.
• Provide technical leadership and design assurance throughout the project lifecycle.

Required Skills/Qualifications: 

• Strong experience designing signalling solutions within mobile core networks.
• Good understanding of 2G, 3G, 4G/LTE, IMS and 5G Core technologies.
• Hands-on knowledge of signalling protocols including:
• SS7
• SIGTRAN
• SIP
• Diameter
• MAP
• Experience with IP STP, DRA, DEA, DSC and IMS platforms.
• Understanding of traffic engineering, capacity planning and network modelling.
• Experience producing High-Level Designs (HLDs), Low-Level Designs (LLDs) and technical documentation.
• Strong analytical and problem-solving skills with the ability to balance technical and business requirements.
• Excellent stakeholder management and communication skills.

Desirable:

• Experience supporting mobile network evolution or transformation programmes.
• Knowledge of signalling security and fraud mitigation.
• Experience working with telecoms vendors and reviewing technical compliance documentation.
• Exposure to automation frameworks for telecoms testing.

Work Arrangements:

• Located in Reading / Remote
• Contract is Inside IR35

Salary:

• £400–£500 per day