Voice Network Engineer
Lisbon, Portugal
há 14 horas

Main Purpose of the role

Key Responsibilities

As a Network Engineering member, in the Truphone for Finance functional area, you will be responsible to propose, analyze and define the requirements for new and existing services and systems, related with the Mobile Recording systems under the responsibility of the functional area.

Prepare, design, test and provide new solutions or product changes of the already existing portfolio. Define and support the technology evolution roadmap for the systems under the functional area.

Participate and support the other functional areas in cross functional projects.

  • Collaboration with other Networks' teams in defining and managing the projects for delivery of new solutions;
  • Project delivery. Network design. Integration and migration strategy definition. Collaboration with other relevant departments.
  • Responsible for end-to-end delivery;
  • Creation of technical documentation (HLD’s, LLD’s, WO’s, etc.) and maintain it over the lifecycle of the solutions;
  • Perform implementations in live environment. Understanding of End to End system testing requirements;
  • Follow-up and define Quality and Performance indicators;
  • Capacity and performance analysis, reporting and improvement solution's definition;
  • Service & Resource configuration definition and implementation on requested systems;
  • Work on complex solutions that influence the design of current products and addresses design issues for future products or technologies;
  • Close relationship with external partners like carriers, service providers;
  • Elaborate, and manage, the process for change requests to current partners in order to meet the network necessities;
  • Control the network elements' roadmap, being responsible for the necessary software / hardware upgrade during the components lifecycle;
  • Ideate and implement process improvements, including and especially cross-team processes;
  • Have successful partnerships with other departments and teams.
  • Requirements

  • Degree in Telecom Engineering, Computer Science or equivalent experience;
  • Proven experience on implementation of live solutions on mobile telecom (GSM, UMTS, LTE, IMS), networks design, capacity management, engineering and architecture;
  • Knowledge of 3GPP, GSMA, ITU standards and specifications;
  • Experience in the design, test and operation of NGN based networks, including MSS / MGW, HLR / HSS, SBC;
  • Understanding about IMS architecture. Knowledge about VoIP, VoLTE, VoWifi, and QoS;
  • IMS Architecture with understanding of IMS nodes including P / S / I-CSCF, Application Servers;
  • Knowledge and experience with Signaling protocols including SIP,RTP and TDM protocols like SS7, ISDN, SIGTRAN and MAP and CAMEL;
  • Experience with protocol analyzer tools like Wireshark, Astelia, and ability to use them to troubleshoot networks errors / problems for the mentioned protocols;
  • Experience with ETSI NFV architecture and solutions;
  • Familiar with MVNO / MVNE / MVNA architecture(s) and landscape;
  • English proficiency mandatory, other languages are a plus.
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