ENGINEER - ROAMING VAS AT MTN NIGERIA

About Company:

MTN Nigeria is a leading telecommunications provider in Nigeria, offering a wide range of services including mobile voice, data, and digital solutions. It is a subsidiary of the MTN Group, a multinational telecommunications company operating in 19 countries in Africa and the Middle East. MTN Nigeria is known for its extensive network coverage, large customer base, and its role in connecting people across Nigeria. 

We are recruiting to fill the position below:

Job Description:

• The Roaming VAS Engineer will report to the Manager: Roaming Technology Operations. The roaming engineer will be responsible for setting up, implementing, monitoring, and managing all policies and procedures relating to International Roaming activities 

Responsibilities

Key Performance Areas: Core, essential responsibilities/outputs of the position (KPA's)

• To act as a Subject Matter Expert for Roaming VAS  in MTN GC
• To perform operation activities on the Roaming VAS platform (Steering, Border Control, GLR, Welcome SMS etc).  
• To configure all parameters linked to the Roaming VAS application
• Implement new IR partner data according to IR.21 specification.
• Implement commercial roaming data for partners announced to be launched commercially.
• Update the new IR partner’s data when required.
• Monitor the international roaming performance.
• Ensure consistency, accuracy, and integrity of all related data and documentation
• Attend to all logged/assigned IR related faults and queries.
• Conduct troubleshooting and problem resolution for all IR-related faults or queries.
• Provide technical roaming support to internal divisions within the organization.
• Assist all divisions with roaming-related technical problems.
• Liaise with foreign operators, internal departments, and external parties with regard to roaming-related issues.
• Prepare all required IR reports related to the activities within the roaming section.
• To handle and resolve customer incidents
• To implement traffic routing  
• To coordinate and manage vendor activities during the project deployment to guarantee market time and compliance with partner requirements.
• Performing diagnostics, finding the resolution/workaround for the trouble
• Supporting escalated fault management.
• Be responsible for logging and tracking of TAC
• Initiate corrective action for the faults handled.  
• Conduct analysis of network traffic abnormalities/network congestion/Network KPI
• Performing functional tests  
• Implementing a workaround.
• Manage the root cause of each incident and implement preventive actions to prevent recurrence of Faults.
• Determining the risk and impact of implementing the change.
• Creating a Change Plan of the individual change.
• Reviewing the design, developing and implementing (part) of the Change Request, within the time frame
• Conducting a post review to assure successful implementation, along with identification of any external impacts or new requirements
• Activities relating to the change
• Activating the rollback plan and invoking Fault Management or other interface processes, when applicable.
• Coordinating all CRs for the CAB or ECAB meetings
• Ensuring the timely implementation of the requested change
• Ensure Pre and Post Check  
• Resolving any issues with the implementation
• End-to-end onboarding of new customer
• Handle PM requests from other processes, analyse and categorize PM requirements
• Review and approve the preventive maintenance procedure and plan of the Preventive Maintenance within the timeline SLA.
• Timely review and finalize the Preventive maintenance report
• Make step-by-step guidelines and related templates for all kinds of Preventive maintenance services within the SLA.
• Developing and maintaining technical project documentation.
• Delivering detailed functional and technical analysis against project work packages in line with solution designers in other squads; handshakes on the specifications of the integration points.
• Preparing design documents for the delivery, such as Call flows, solution documents, high-level design, and Low-level design documents
• Supporting testers for test case preparation, reviewing test cases.
• Participating in User Acceptance Testing (UAT) for Messaging projects before production releases.
• Executing RFP/RFP & SOW process if required.
• Working with the solution architect to maintain product roadmaps and target architecture.
• Reviewing and approving vendor design documents; follow-up vendor development.
• To drive cross-functional projects and alignment, especially with commercial and security teams.

Requirements:

Education: 

• Minimum 3-year Academic Degree (B Eng. / BSc Degree preferred)  
• Relevant certification/accreditation/membership with a professional body as required for the role  
• Fluent in English and the language of the country (preferably)  

Experience: 

• 5+ years of experience in an engineering field 
• Expert in SMS/SS7/IP/SMPP data solutions 
• Experience with SMS Routing, Hub, and Firewall technology 
• Knowledge of UNIX-Solaris, AIX, HPUX, Windows, Linux, and cloud technology 
• Understanding of Change Management Life Cycle Principles 
• System Support and Trouble Analysis skills (root cause analysis, alarm management platforms, troubleshooting, etc.) 
• Server & System Administration skills 
• Knowledge of Analysis Tools  
• Hardware installation and repair skills 
• Knowledge of the OSI network protocol design 
• Knowledge of Configuration, Backup, and Restoral processes is necessary to support the telephony/voice infrastructure 
• Experience using and writing technical documentation 
•  High-level vendor certifications (i.e., CCNA) 
•  Ability to lead engineering teams 
• Expert analytical and problem-solving skills 
• Must have experience in eTOM, SID, and NGOSS Framework. 
• Excellent communication and presentation skills, both verbal and written. 
• Ability to solve problems using a creative and logical mindset. 
• Worked across diverse cultures and geographies (advantageous) 

Salary

Application Closing Date: 07th August, 2025

Application Instructions:

CLICK ON THE LINK BELOW TO APPLY