Team Lead, IT Support & Application at Layer3

Layer3 is a network and enterprise solutions provider. We combine our knowledge of world-class technology solutions, in addition to our partnership with some of the global technology providers to design, implement and support our clients’ business transformation ambitions. This includes the innovation of the data centre, software, server & storage systems, mobile device management, security & network infrastructure solutions and access solutions including broadband and VPN services. These solutions are all backed by our world-class support.

At Layer3, the success of our customers is always paramount in our minds and our culture drives us to work closely with them to truly understand their business and ICT needs. We continuously build strategic partnerships with global technology leaders that enable us deploy solutions that minimize risks, maximize flexibility and optimize the use of capital with results that exceed our customers’ expectations.

We run a 24/7 network management and support center which allows us provide round the clock remote monitoring and support services for our customers’ IT and network infrastructure as well as our expansive metro fiber network infrastructure guaranteeing optimal performance and quick fault resolutions.

Layer3 started operations in 2005 with headquarters in Abuja, Nigeria. It owns and operates metropolitan fiber networks in Lagos and Abuja and has a world-class network operations and management center in Abuja. In 2013, it recieved the Tony Elumelu Foundation and AllWorld Networks Nigeria50 award. The Nigeria50 award is a ranking of the fastest and most dynamic non-listed companies in Nigeria. Layer3 ranked 17th of the 50 companies awarded.

Layer3 provides professional services in several African countries with a large pool of some of the most technically certified and experienced experts within the region.About the Role

The Team Lead, IT Support & Application is responsible for leading the end-to-end operational efficiency, reliability, and security of the organization’s on-premises infrastructure, applications, and end-user technologies.
The role ensures the seamless functioning of datacenter operations, virtualization platforms, cloud services, cybersecurity controls, DevOps/MLOps workflows, and service support systems, all in alignment with organizational strategic goals and compliance standards.

Key Responsibilities

Lead the design, deployment, optimization, and maintenance of Layer3’s on-premises infrastructure.
Implement and manage the Proxmox VE virtualization environment, including clustering, workload migrations, VM lifecycle, and enterprise backups via PBS.
Administer Microsoft 365 services: SharePoint, Exchange Online, Purview, Admin Center, OneDrive, and Teams.
Drive organization-wide VAPT remediation and security hardening across infrastructure and applications.
As the custodian of all organizations Applications, the incumbent will be responsible for deploying SentinelOne, BitLocker, Cloudflare WAF, other endpoint security controls and applications.
Coordinate and manage the software development for both DevOp and MLOps programs for the organization.
Support backend engineering for Layer3Pay, mobile API integrations, and SMS automation systems.
Lead the implementation and enhancement of Zabbix, Wazuh, Prometheus, Grafana, and SNMP templates for system monitoring and accountability.
 Develop custom monitoring templates promote monitoring system usability and contextualization.
Oversee centralized IT support operations using a SharePoint-based ticketing system, ensuring SLA compliance and workflow automation.
Lead intra-unit service desk optimization, escalation workflows, asset inventory modernization, and hardware lifecycle management for Application and ITSupport services and products.
Train and mentor engineers in virtualization, Proxmox, Python, Power BI, networking, and engineering best practices.
Participate in corporate committees including Risk Assessment, Project Steering Committee, and R&D initiatives.

Requirements

Experience: Minimum of 5 years of relevant experience in IT Support & Applications or a related role. 
Technical Skills: Proficiency in Windows, macOS, and Linux Operating Systems; knowledge of network protocols and configurations. 
Relevant certifications (e.g., ITIL, Vmware, Comptia, MSCDBA etc) are a plus.
Experience in designing, developing, and managing cloud-based infrastructure and applications.

Technical Skills:

Infrastructure & Virtualization Architecture
SAN/NAS Storage Engineering
PowerBI, Python, PowerApps and SharePoint Site
Cloud Services (O365, Azure or AWS, Linux VMs,)
Cybersecurity Hardening & Endpoint Protection
ITSM, SLA Management & Service Desk Operations
Backup / DR / BCP Engineering
Application Support (Odoo, QuickBooks, Custom Apps)
DevOps  & MLOps (CI/CD, GitHub, Automation)
Network Monitoring (Zabbix, Wazuh, Prometheus, Grafana)
Leadership, Training & Team Development
Cost Optimization & Strategic Planning