Senior Engineer, VAS Operations at T2 (Formerly 9Mobile)

T2 Mobile is the new brand identity for the Nigerian telecommunications company previously known as 9mobile

Job Summary

• Perform Value added Service end to end troubleshooting, 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

Roles and Responsibilities

• 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 both CS and PS 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 implements 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.

Education and Experience

• First Degree in Electrical / Electronic or Computer Engineering.
• 5 years of experience in telecommunication sector.
• 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
• Preferable with Knowledge on VAS systems like SMSC, SMPP-GW, VoiceMail, VoiceSMS, 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 and software engineering.
• 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
• Knowledge and basic experience in cloud infrastructure and network function virtualization. 

Required Capabilities
Knowledge:

• Familiar with VAS equipment and platform
• Working knowledge of Microsoft IIS and ASP.Net; Web/internet content filtering
• IP Technologies 
• Knowledge of Database Management and SQL query
• Strong knowledge of (SMPP, SMPP3.4,OS(UNIX, Linux)
• Domain name, service configuration and management,
• Good communication skills and strong customer –
• Personal Effectiveness
• Problem Solving
• Teaming

Behavior:

• Passion for Excellence
• Integrity
• Empowering people
• Growing people
• Team work
  Customer Focus

Method of Application