IP & Security Engineer – MVNO at Lebara Nigeria

Lebara Nigeria - Beyond top-tier telecommunications, we have forged strategic partnerships to offer financial services designed to empower the creative industry. Through microloans, device funding, Lebara powered internet hubs, and culture-shaping events to boost the art, culture, tourism and creative economy. we are committed to driving innovation, inclusion, and economic growth.

We are recruiting to fill the position below:

Job Title: IP & Security Engineer – MVNO

Location: Lagos
Job Type: Full-time
Department: Technology
Reports To: Network and IT Operations Manager

Role Summary

• The IP & Security Engineer is responsible for designing, implementing, and maintaining the IP network infrastructure and ensuring end-to-end security for MVNO services.
• This includes core IP transport, interconnectivity with MNO partners, VPNs, firewalls, intrusion prevention, and compliance with regulatory requirements.
• The role also involves proactive monitoring, troubleshooting, and optimizing IP and security systems to guarantee high availability, low latency, and robust protection against threats.

Key Responsibilities
IP Network Engineering:

• Design, configure, and maintain the MVNO’s IP/MPLS backbone, data center networks, and interconnects to MNOs and service partners.
• Manage IP addressing plans, routing protocols (BGP, OSPF, IS-IS), and QoS policies.
• Ensure reliable IP transport for voice, data, and signaling traffic.
• Implement capacity planning and performance optimization for IP links.

Security Engineering:

• Design, implement, and manage security policies, firewalls, VPNs, and security appliances.
• Deploy intrusion detection/prevention systems (IDS/IPS) and DDoS mitigation solutions.
• Monitor and respond to network security incidents and vulnerabilities.
• Conduct periodic penetration tests and security audits.

Integration & Interconnectivity:

• Support IP and security requirements for integrating with host MNO(s), roaming partners, and third-party platforms.
• Configure secure interconnects for signaling (SIP, Diameter, SS7 over IP) and data services.

Operations & Monitoring:

• Utilize NMS/SIEM tools for real-time monitoring of IP and security infrastructure.
• Troubleshoot IP routing, switching, and security incidents within SLA timelines.
• Maintain network and security documentation, topology diagrams, and configuration backups.

Compliance & Governance:

• Ensure IP and security designs comply with national telecom regulations and data protection laws.
• Implement ISO 27001, PCI DSS, or other relevant security standards.

KPIs (Key Performance Indicators)

• Network uptime and availability.
• Security incident response time.
• Compliance audit results.
• Mean time to resolve (MTTR) for IP/security incidents.
• Successful integration with MNO and partner networks without service disruption.

Qualifications & Skills

• Education: Bachelor’s Degree in Telecommunications, Computer Science, or related field.
• 8+ years of experience in IP networking and security within a telecom, ISP, or MVNO environment.
• Vendor certifications (e.g., Cisco CCNP/CCIE, Juniper JNCIP/JNCIE, Fortinet NSE, Palo Alto PCNSE, or equivalent).
• Hands-on experience with multi-vendor IP and security equipment.
• Understanding of telecom regulations and cyber security frameworks.

Key Skills & Competencies:

• Strong knowledge of IP networking (IPv4, IPv6, BGP, OSPF, MPLS, QoS).
• Experience with security technologies (firewalls, IDS/IPS, SIEM, VPN).
• Knowledge of telecom protocols (SIP, Diameter, GTP, SS7 over IP).
• Familiarity with cloud security, virtualization security, and container security.
• Strong analytical and troubleshooting skills.
• Ability to work under pressure and manage multiple priorities.

Application Closing Date
Not Specified.