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IT System Administrator

Teknowledge
Lagos, Lagos State
Full time
20 hours ago
Overview:
We’re seeking an IT System Administrator with the experience needed to install, manage, and maintain computers, servers, telephones, and network systems to ensure the stable operations of TEK’s IT assets. The individual will also ensure the integrity and stability of Voice, Data as well as the VPN connection of internal network and partner’s access. This person shall analyze and resolve hardware and software problems and troubleshoot network performance issues while maintaining a high level of information security.

At TeKnowledge, your work makes an impact from day one. We partner with organizations to deliver AI-First Expert Technology Services that drive meaningful impact in AI, Customer Experience, and Cybersecurity. We turn complexity into clarity and potential into progress—in a place where people lead and tech empowers.
You’ll be part of a diverse and inclusive team where trust, teamwork, and shared success fuel everything we do. We push boundaries, using advanced technologies to solve complex challenges for clients around the world.
Here, your work drives real change, and your ideas help shape the future of technology. We invest in you with top-tier training, mentorship, and career development—ensuring you stay ahead in an ever-evolving world.

Why You’ll Enjoy It Here:
  • Be Part of Something Big – A growing company where your contributions matter.
  • Make an Immediate Impact – Support groundbreaking technologies with real-world results.
  • Work on Cutting-Edge Tech – AI, cybersecurity, and next-gen digital solutions.
  • Thrive in an Inclusive Team – A culture built on trust, collaboration, and respect.
  • We Care – Integrity, empathy, and purpose guide every decision.
We’re looking for innovators, problem-solvers, and experts ready to drive change and grow with us.

We Are TeKnowledge. Where People Lead and Tech Empowers.
Responsibilities:
  • Monitor, maintain, and manage all servers, IPBX and network devices at a site to keep them running properly, coordinating with System Admins at other sites to resolve problems.
  • Monitor and Utilize Internet Links and SIP providers.
  • Follow Change control management while implementing system changes, upgrades, and updates.
  • Responsible for creating and deleting telephone agents and ACD groups.
  • Responsible in managing Backup/ Restore file sharing, SharePoint, and database systems.
  • Ensure all IT Global policies/ standards and procedures are in place and document new standards/procedures which are particularly applied to your site.
  • Conduct Daily/ Weekly and Monthly System Health checklist, maintaining safety standards in the working environment that comply with TEK and partner’s HSSE standard.
  • Ensure all Security ERs/ patches/ hotfixes for servers, ensuring they are protected by the latest anti-virus software alongside general readiness for viruses or internet attacks.
  • Capacity planning for system upgrades.
  • Fully understand Disaster Recovery Plan (DRP) for business continuity. Make sure the compliant with TEK’s global DRP. Join the project team for DR Exercise.
  • Technical Representative at your site for solving Crisis problems, providing support for other teams, and managing LAB and testing environments.
Qualifications:
  • MCSA, CCNA, or ITIL certification or higher is advantage but is not required.
  • Must have completed the compulsory 1-year NYSC or have an exemption certificate.
  • At least 3 years of experience in a similar role including ITIL v3 or ISO20000 experience.
Should possess 4-6 of the following types of experience:
  • General knowledge of server and client systems hardware.
  • Virtualization – general knowledge/concept, basic experience in provisioning/administration with any vendor hypervisor (VMware ESX, Microsoft HyperV, Citrix Xen, etc.)
  • Server OS: Windows 2008 (R2), 2012 (R2).
  • Client OS: Windows 7, 8, or 10.
  • Networking: general knowledge of devices, LAN/WAN concepts, data transmission, routing, protocol stack, DNS, DHCP, load balancing, and firewalls.
  • Active Directory – concept, topology, general admin tasks.
  • PowerShell – administration, scripting.
  • O365 / Messaging applications.
  • Exchange, Lync, Sharepoint (or alternatives from other vendors).
  • Mobile Device Management.
  • Additional knowledge in cloud technologies, backup software.
  • Strong technical skills with IPBX (VoIP), Server technology, and Virtualization.
  • Strong in IT Service Management for Incident, Change and Configuration Management.
  • Process-oriented team player capable of being self-managed with excellent crisis management and troubleshooting skills.
  • Professional fluency in English is essential, both written and spoken.
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