Israel Nduka
@israelnduka
Experienced IT manager specializing in infrastructure, security, and network operations.
NigeriaWhat I'm looking for
I am an IT professional with extensive hands-on experience in IT infrastructure, information security, and network operations, having progressed from network administration to senior IT support and IT management roles. I design scalable LAN/WAN topologies, implement cloud migrations, and manage Microsoft 365, Azure AD, Intune, and endpoint security tools.
My work history includes managing networks of 500+ endpoints, deploying Cisco/Huawei/MikroTik devices, administering Windows Server environments (AD DS, DNS, DHCP, Group Policy), and using monitoring and ITSM tools such as PRTG, ManageEngine, Teramind, ServiceNow, and Jira for incident response and change management. I have led infrastructure projects, reduced connectivity issues, and enforced data security and compliance practices.
I hold formal training and certifications in cybersecurity, CCNA, CompTIA A+ (in view), CISA (Udemy), IoT, and web technologies (HTML/CSS, JavaScript). I am a team player, customer-focused, and committed to applying best practices to improve efficiency, reduce costs, and strengthen organizational security posture.
Experience
Work history, roles, and key accomplishments
IT Manager
Vetrinox Capital Limited
Jan 2025 - Present (1 year)
Assessed and redesigned IT infrastructure, implemented scalable LAN/WAN topology and cloud migration plans, and deployed Cisco/Huawei/MikroTik devices and Palo Alto/Sophos security to improve connectivity and security posture.
Senior IT Support Engineer
Digibay Limited
Mar 2022 - Dec 2024 (2 years 9 months)
Managed LAN/WAN infrastructure, Active Directory onboarding, VOIP/SIP telephony and endpoint protection while enforcing data protection standards and improving network availability and compliance.
IT / Network Supervisor
Transsion Holdings
Jul 2018 - Mar 2022 (3 years 8 months)
Oversaw network of 500+ clients, managed backups, hardware procurement, software patching and security controls, and led projects to reduce downtime and strengthen infrastructure resilience.
Network Administrator
Datcomm Nigeria Limited
Aug 2013 - Jun 2018 (4 years 10 months)
Implemented LAN/WAN elements, maintained and secured network infrastructure, analyzed systems for upgrades and supported installations including PABX and IP camera systems.
IT Personnel
Domino Stores / Ozone-Silverbird
Jan 2012 - Jul 2013 (1 year 6 months)
Maintained network documentation and performed diagnostics, installations and advanced troubleshooting for office devices and voice/data wiring infrastructure.
Education
Degrees, certifications, and relevant coursework
LULagos State University
Bachelor of Science, Computer Science
2010 - 2016
Completed a Bachelor of Science in Computer Science at Lagos State University from 2010 to 2016.
OUOlabisi Onabanjo University
Higher Diploma, Computer Engineering
2010 - 2012
Completed a Higher Diploma in Computer Engineering at Olabisi Onabanjo University from 2010 to 2012.
OUOlabisi Onabanjo University
Diploma, Computer Engineering
2008 - 2010
Completed a Diploma in Computer Engineering at Olabisi Onabanjo University from 2008 to 2010.
Saint Finbarr's College Akoka
SSCE, Secondary Education
1998 - 2004
Completed secondary education (SSCE/WAEC) at Saint Finbarr's College Akoka from 1998 to 2004.
Rehoboth Nursery/Primary School
F.S.L.C, Primary Education
1992 - 1998
Attended Rehoboth Nursery/Primary School and completed primary education (F.S.L.C) from 1992 to 1998.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Job categories
Skills
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