ABIONA MUSA ADEBAYO
Lagos,Nigeria
Summary
Experienced Systems and Network Engineer with over 20 years of proven expertise in Information Technology across network infrastructure, systems administration, and cloud-based services. Skilled in managing enterprise systems, optimizing network performance, and delivering high-level technical support. Recognized for resolving complex IT challenges, improving customer satisfaction, and fostering efficient teamwork. Seeking to contribute technical and leadership expertise within a forward-thinking organization in Luxembourg.
Overview
33
33
years of professional experience
1992
1992
years of post-secondary education
1
1
Certification
Work history
Network System Administrator
Sigma Coatings Nigeria Ltd.
Lagos
2016.01 - 2026.04
- Manage installation, maintenance, and support for network and voice hardware, software, and communication links.
- Administer Microsoft 365 environment (Azure AD, Exchange Online, Teams, SharePoint, Intune, OneDrive).
- Design and evaluate WAN/LAN connectivity technologies to optimize performance.
- Troubleshoot routers, switches, wireless access points, and network servers.
- Support end-users and provide IT training to improve system use and productivity.
- Implement performance improvement strategies and ensure system reliability.
- Provide Level 2/3 technical support and resolve complex IT issues promptly.
Senior Systems and Network Engineer
Wizcount Computer Technologies Ltd.
Lagos
2006.01 - 2016.01
- Delivered advanced network support services for routers, switches, and bridges.
- Designed robust infrastructure for new IT applications and services.
- Integrated fixed wireless connectivity and VoIP solutions for multi-site operations.
- Conducted network testing and optimization to improve resilience and uptime.
- Advised management on security, backup, and disaster recovery strategies.
Systems Engineer
Arit of Africa Nigeria Ltd.
Ibadan
1993.01 - 2005.01
- Designed, installed, and maintained enterprise computer systems and networks.
- Performed system performance analysis, upgrades, and security patching.
- Supported data collection automation to increase operational efficiency.
- Provided technical consultation and on-site support for client installations.
- Managed software licensing, upgrades, and hardware maintenance.
Education
Bachelor of Science (B.Sc.) - Electrical Engineering
University of Ilorin
Kwara State, NigeriaAdvanced Level Certificate (A/L) - undefined
Oyo State College of Arts and Science
Ile-IfeOrdinary Level Certificate (O/L) - undefined
Akinorun Grammar School
Ikirun, Osun StateSkills
- Network Infrastructure Administration
- Microsoft Office 365 & Azure AD Administration
- Systems Installation & Maintenance
- Routing and Switching Protocols (LAN/WAN)
- Troubleshooting & Technical Support
- Hardware and Software Management
- Customer Relationship Management
- IT Process Improvement & Documentation
Certification
Microsoft Certified Professional (MCP) – 2000
Languages
English: Fluent
Additional information
- Nationality: Nigerian
- Willing to Relocate: Yes
- Work Eligibility: Open to Luxembourg relocation sponsorship
Timeline
Network System Administrator
Sigma Coatings Nigeria Ltd.
2016.01 - 2026.04
Senior Systems and Network Engineer
Wizcount Computer Technologies Ltd.
2006.01 - 2016.01
Systems Engineer
Arit of Africa Nigeria Ltd.
1993.01 - 2005.01
Advanced Level Certificate (A/L) - undefined
Oyo State College of Arts and Science
Ordinary Level Certificate (O/L) - undefined
Akinorun Grammar School
Bachelor of Science (B.Sc.) - Electrical Engineering
University of Ilorin