Senior Engineer, VAS at 9mobile

9mobile is a Nigerian private limited liability company. EMTS acquired a Unified Access Service License from the Nigerian Communications Commission in 2007. The License enables EMTS provide Fixed Telephony (wired or wireless), Digital Mobile Services, International Gateway Services and National/Regional Long Distance Services in addition to spectrum assignments in the 900 and 1800 MHz bands.

We are recruiting to fill the position below:



Job Title: Senior Engineer, VAS

Job ID: IRC5079
Location: Abuja

Job Summary

  • Perform Value added Service end to end trouble shooting, conduct VAS health checks, and carry out end to end KPI analysis and Performance optimization
  • Ensure the implementation, maintenance and operations of VAS nodes and effectively monitor all data related links.

Principal Functions

  • Liaise with vendors to commission, integrate and perform system acceptance testing (SAT) for VAS elements on EMTS's network.
  • Troubleshoot circuit switching VAS network nodes such as Voicemail, USSD, IVR, CRBT, SMSC, IPCC, SCG, etc, as required to prevent, isolate, and resolve network faults.
  • Ensure adherence to a proactive maintenance cycle on all VAS circuit switching systems
  • Review recommendations of the internal audit function relating to CS VAS system policies, standards, guidelines and operations and take action as required.
  • VAS Systems and Services' diagnosis and resolution of issues to ensure MTTR and other service availability KPIs are met
  • Development, configuration, and integration of all VAS solutions/systems in line with the Digital strategy execution plan
  • Technical reviews to implement solutions and workarounds for faults/incidents
  • Properly escalate and document unresolved service or system issues to appropriate internal or external teams and follow up to ensure they are satisfactorily closed within SLA
  • Timely delivery of projects assigned with the goal of ensuring high quality standards are met and solutions are operationally viable.
  • Collaborate with both Technical and Business teams to ensure seamless deployment of products
  • Proactively manage capacity and ensure VAS systems operate below 70% utilization
  • Mobilizes smooth operation of VAS nodes; testing and integration of new NE with the existing network.
  • Takes care of all VAS related servers including their connectivity with all the other nodes
  • Supervise maintenance of all VAS services i.e., nodes (SMSC, USSD, IVR, CRBTs, etc) in the network.

Educational Requirements

  • First Degree in Electrical / Electronic or Computer Engineering.
  • 5 years of experience in telecommunication sector.

Experience, Skills & Competencies:

  • Good knowledge and experience with Linux and IP Networking, especially Transport, Internet and Application Layer(IPv4,IPsec, TCP, UDP, QUIC, HTTP/s, DNS, RTSP, SSH) protocols
  • Knowledge and basic experience in cloud infrastructure and network function virtualization.
  • Preferable with Knowledge on VAS systems like SMSC, SMPP-GW, Voice Mail, Voice SMS, RBT, SDP (Service Delivery Platform), RSC(Roaming Service Center), USSD, Collect Call, WAP/WEB Portal, Mobile TV, MMSC, WAP-GW, ADC & OTA, MTA (Mail Transfer Agent)
  • Good knowledge in operating systems like Windows, Red hat or SUSE Linux, SUN Solaris and etc.
  • Good knowledge in database like MySQL, SQL, Oracle and etc
  • Good knowledge of shell scripting.
  • Working knowledge of security encryption solutions - SSL, firewalls, VPN, IPsec
  • Strong experience in programming/scripting language(s) - Python, Perl , Shell  or equivalent
  • 3rd Party RESTful API integration, PHP, MySQL, SQL server, web service working knowledge preferred



How to Apply
Interested and qualified candidates should:
Click here to apply