Network Charging Engineer
Lisbon, Portugal
há 4 dias

Working at Truphone is different. We are part of a very diverse environment, solving great problems and helping simplify mobile connectivity like no other company has done before.

We do not shy away from issues, wait for others to act or solve things for us, we always take on big challenges together and work to find the best solution for our customers.

Literally everyone gets exposed to various engineering projects needing impactful team members.

We carry with pleasure the great responsibility to evolve Truphone' s global mobile network. We work hard in making our engineering solutions better day by day and take pride for providing high quality services.

Our company trusts us in delivering innovative and complex projects as well as operating our scope. Our work is very diverse, and we take the initiative to understand the context and requirements of why and what we're working on to be able to then design and deploy iteratively our solution.

We also frequently engage with other teams on cross-functional projects.

Responsibilities :

  • Create and maintain charging products, offers and rate plans
  • Engineer new charging system solutions and maintain existing ones
  • Perform end-to-end project planning and delivery
  • Creation and maintenance of technical documentation
  • Deploy solutions in lab and production environments
  • Create the appropriate visibility of the relevant service KPI's
  • Quality control and assurance of offers and rate plans
  • Anticipate capacity and performance issues
  • Collaborate closely with other teams as well as with external partners
  • Contribute towards continuous improvement of the teams’ engineering standards and working methodologies
  • Requirements

  • Extensive engineering experience with Charging services and systems, from commercial and open-source solutions
  • Hands on operational and delivery experience with maintenance and implementation of solutions in live and lab environments
  • Expertise in mobile services charging (offline, online), using one or more of these protocols : CAPv2, CAPv3, SIP, Diameter (Ro, Gy, Gx, Sy), RADIUS, LDAP, and / or Web Service protocols
  • Expertise in Online Charging Systems and it's integration with Provisioning and Billing systems
  • Expertise in service design related with voice, messaging and data services (including policy and charging control)
  • Expertise in IMS architecture, especially with VoWiFi and VoLTE use cases
  • Previously integrated mobile services and solutions with offline and online charging systems
  • Experience in dedicated service solutions, data only, applicable to enterprise / corporate environments (M2M / IoT solutions and services)
  • Experience successfully designing and implementing Rating / Metering / Mediation solutions
  • Experience in troubleshooting issues related with signaling, provisioning or configuration
  • Good understanding on GSM, UMTS, LTE and 5G related technologies, systems, and protocols
  • Previous experience in automation, delivery, solution design and capacity management
  • Having a degree in Telecom Engineering or Computer Science or equivalent is a big plus
  • Contributions to open-source projects is a big plus
  • Experience with NFV architecture is a big plus
  • Familiarity with MVNO / MVNE / MVNA architecture(s) and landscape is a big plus
  • English proficiency mandatory, other languages are a plus
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