Senior Core Network Engineer (sms/Signalling) (m/f/d)

  • Puteaux
  • 4 août 2022
  • Réf. FRDJOB2019051213


Transatel is a leader in the telecommunications industry and has maintained continuous growth for the past 19 years. Our award-winning service and MVNE/A (Mobile Virtual Network Enabler/Aggregator) technical platform are recognised year after year by our industry peers. Based in Paris, we have a team of 200 IT and telecoms experts of 21 different nationalities.

At Transatel, you will be collaborating with the biggest names in telecoms, IoT, and consumer electronics across the world. You will be working with innovative Mobile Virtual Network Operators (MVNOs), as well as in the fast-developing connected objects services industry. Transatel works in the upstream phase of product development with high quality business-to-business relationships to ultimately achieve the goal of satisfying the end user.

Your mission

As part of the core network engineering team, taking care of the circuit nodes as well as interconnection, transmission and switching; you will have the following responsibilities:
  • Adapt the Transatel telecom network interconnections architecture to our traffic growth and customer’s need. 
  • Audit of the signaling architecture and select possible equipment/solution providers 
  • Drive the implementation of telecom interconnection (Mainly Voice & SMS) in relationship with our providers 
  • Contribution to architecture and engineering around STP routing implementation 
  • Central point on signaling routing aspects in Transatel technical environment 
  • Lead the technical implementation of the new design and new components including migration of existing businesses
  • Support for the implementation and evolution of HSS, DRA, IWF network nodes
  • Expert role on the above elements with support teams
  • Ensure operability of our components for the service platform (Voice, SMS, MMS)
  • Central point for all requests coming from the Business and interface between product management and telecom team
  • Participation writing the related technical documentation 

Your profil 

  • You have a Bac+5 (postgraduate) diploma and you have at least 5/10 years’ experience in the core network domain.
The expected skills are as follow:
  • Core Network architecture design and assessment of UMTS Mobile Core Network products (HLR, MSC/VLR, SGSN, GGSN, SMSC …)
  • Technical expertise on core network nodes (HSS, MME, DRA, IWF, SGW, PGW)
  • Expertise on the different signaling flows of mobile services provided in the UMTS CS/PS domains (ISUP, MAP, CAP)
  • Expertise in Signaling routing (SIGTRAN, DIAMETER)
  • Experience in Installation, integration, tests and acceptance of HLR, HSS equipment
  • E2E technical implementation and follow-up of standard GSMA roaming agreements (IREG/TADIG)
  • Good knowledge of technical activities management
  • Good interaction with external customers and internal teams 
  • Fluency in english is mandatory, french and german is a plus

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