Consultant – Security Business Unit

Consultant – Security Business Unit

The Security business is a fast-growing part of Mobileum portfolio. The Signalling firewall and SMS firewall are market leading products with significant opportunity for new features and portfolio extension into new products. We seek a Security Consultant to bolster that growth through identification of new attack scenarios and evidence and to help launch a threat intelligence service offering.



Reporting to the CTO of the Security BU, the role’s responsibilities include: 

  • Investigation and documentation of theoretical attacks on mobile signalling with a focus on: SIP, MAP, Diameter, GTP and 5G interconnect
  • Analysis, identification, and documentation of examples of actual novel attacks based on analyzing real customer traffic
  • Support for customers and on-site Mobileum personnel to assess potential threats
  • Build and specify tools to aid in research and to develop into products
  • Specify defence mechanisms for attacks identified and work with development teams to support machine learning and rule-based protection techniques.
  • Provide contribution to GSMA documents (and potentially 3gpp)
  • Support technical conversations with customers on details of potential attacks and defence mechanisms
  • Track new reported security threats and disseminate and explain detection mechanisms and counter measures.


Knowledge and experience

The successful candidate will have knowledge and experience of the following:

  • Extensive experience and knowledge of mobile networks core infrastructure and signalling
  • Extensive experience in security
  • Customer presentations and engagement.

Qualifications & Personal skills 

  • Graduate (relevant degree preferred). Only those with a valid UK work permit or with residency status may apply.
  • Well organised to track multiple activities and ideas
  • Articulate – able to communicate issues identified and explain to customers and internally
  • Self-starter, able to work with minimum supervision
  • Sets high personal standards for quality of work.


Location of work: The position will be based at the company’s headquarters at Woodlands Court, Bradley Stoke, Bristol, UK

If you feel that you've got what it takes to work with us and want to join a dynamic team, apply now with your updated CV, details about your motivation, your salary expectations and your earliest possible start date at