Mobile Core & LTE
Open5GS EPC operations, subscriber provisioning, authentication, APN management, session troubleshooting and user-plane routing.
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CYBERSECURITY · TELECOMMUNICATIONS
Engineering
connected
and secure systems.
I'm Major Chirombe — a Network and Cybersecurity Engineer working across mobile core networks, network infrastructure, security operations and enterprise VoIP.
NETWORK
CONNECTED
SECURE SYSTEMS
LTE / EPC
CYBERSECURITY
VOIP & INFRASTRUCTURE
PROFESSIONAL PROFILE
Technology that keeps people and businesses connected.
My work spans ISP operations, LTE/EPC infrastructure, network security, monitoring and VoIP engineering. I combine hands-on troubleshooting with infrastructure deployment, service assurance and technical client support.
From Open5GS mobile core environments to Starlink deployments, RF planning, secure remote access and security monitoring, I focus on reliable and secure technology operations.
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ENGINEERING FOCUS
Networks · Security · Connectivity
CORE EXPERTISE
Across the technology stack.
Practical experience across telecommunications infrastructure, enterprise networks, security operations and unified communications.
Network & RF Engineering
MikroTik, Cisco, Huawei, Baicells, Ubiquiti, Starlink, fibre and microwave backhaul, Cloud-RF planning and optimisation.
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Cybersecurity & VoIP
Sophos, WireGuard, Suricata, Wazuh, ELK Stack, Grandstream, Yeastar, SIP and security monitoring.
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4
LTE EPC Environments Managed
63+
PoPs and LTE Sites Supported
7
Professional Certifications
2023-2026
Selected Project Engagements
5,000+
VoIP Customer Support
834
Starlink Customer Support
SELECTED WORK
Engineering with real-world impact.
Enterprise VoIP deployment, regional cybersecurity excellence and security monitoring solutions.
ENTERPRISE VOIP · 2026
Ministry of Mines and Mining Development
Completed deployment of 160 IP phones at the Ministry headquarters in Harare, supporting integrated enterprise voice communications.
Focus: IP-PBX architecture, SIP trunking, extension management, endpoint provisioning, call routing and QoS.
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REGIONAL CYBERSECURITY · 2026
ITU Inter-Regional CyberDrill
Participated in the 2026 ITU Inter-Regional CyberDrill for the Africa and Arab States regions.
Achievement: Team placed third overall in the Africa and Arab States regional competition.
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CYBERSECURITY · SECURITY OPERATIONS
Intrusion Detection & Monitoring System
Suricata IDS integrated with ELK Stack, Prometheus and Grafana for security event detection, centralised logging and monitoring.
Key capability: Real-time security alerts and threat notifications delivered through Telegram.
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