IT Network Engineer at Ascentech Services Limited

Ascentech Services Limited is a full-fledged Human Resource Solution Provider incorporated in 2013 with its Head Office in Lagos, Nigeria. We are committed to forging long-term partnerships with our clients by creating and delivering robust and flexible services that address the changing needs of their business.

We are recruiting to fill the position below:

Job Title: IT Network Engineer

Location: Lagos
Employment Type: Full-time
Department: Information Technology / IT Infrastructure
Reports To: IT Manager / Head of Infrastructure

About the Role

• We are seeking a skilled and proactive IT Engineer with 3–5 years of hands-on experience in network administration and systems management.
• The successful candidate will be responsible for designing, implementing, securing, and maintaining the organization’s IT infrastructure to ensure high availability, optimal performance, and business continuity across all systems and networks.
• The ideal candidate should possess strong troubleshooting abilities, enterprise infrastructure experience, and a solid understanding of networking, virtualization, security, and cloud technologies.
• You will collaborate with internal teams and external vendors to support day-to-day IT operations while driving infrastructure improvements aligned with organizational objectives.

Key Responsibilities
Network Administration:

• Design, configure, and maintain LAN/WAN infrastructure, VPNs, firewalls, switches, and routing environments.
• Monitor network performance and troubleshoot connectivity or latency issues to minimize downtime.
• Manage enterprise networking devices including routers, switches, wireless controllers, and load balancers (Cisco, Juniper, Fortinet, or equivalent).
• Implement and enforce network security policies, ACLs, VLAN segmentation, and access controls.
• Conduct routine network audits, firmware upgrades, capacity planning, and infrastructure documentation updates.
• Ensure secure and reliable remote connectivity for hybrid or distributed work environments.

Systems Administration:

• Install, configure, and maintain Windows Server and Linux-based operating systems.
• Administer Active Directory, Group Policy, DNS, DHCP, file/print services, and user access management.
• Manage virtualization platforms such as VMware vSphere, Hyper-V, or Proxmox.
• Oversee backup, recovery, and disaster recovery processes to ensure data integrity and business continuity.
• Perform system patching, monitoring, optimization, and performance tuning.
• Support server migrations, upgrades, and infrastructure expansion projects.

IT Operations & Technical Support:

• Provide Tier 2/3 support for escalated infrastructure incidents and technical service requests.
• Manage IT assets, hardware inventory, software licensing, and lifecycle tracking.
• Develop and maintain technical documentation, network diagrams, SOPs, and operational runbooks.
• Coordinate with vendors and service providers regarding procurement, maintenance, SLAs, and renewals.
• Participate in IT project implementation, change management activities, and periodic on-call support rotations.
• Support end-user productivity and ensure timely resolution of infrastructure-related issues.

Security & Compliance:

• Implement and manage endpoint protection, SIEM platforms, IDS/IPS solutions, and security monitoring tools.
• Conduct vulnerability assessments and remediate identified infrastructure risks.
• Ensure compliance with internal security standards and relevant frameworks such as ISO 27001, NDPR, or GDPR.
• Support incident response activities including root cause analysis and post-incident reporting.
• Maintain secure access controls, authentication policies, and data protection measures.

Qualifications & Requirements
Education:

• Bachelor’s degree in Computer Science, Information Technology, Electrical Engineering, or a related discipline.
• Relevant professional certifications combined with strong practical experience may be considered in place of formal education.

Experience:

• 3–5 years’ experience in IT infrastructure, systems administration, or network engineering roles.
• Proven experience managing enterprise-level servers, networks, and virtualization environments.
• Experience supporting multi-site or 100+ user environments is an added advantage.

Technical Skills:
Networking:

• Strong understanding of TCP/IP, VLANs, BGP, OSPF, MPLS, SD-WAN, QoS, and VPN technologies (IPSec/SSL).

Systems Administration:

• Windows Server 2016/2019/2022
• Active Directory & Group Policy
• Linux administration (Ubuntu/RHEL)
• PowerShell and Bash scripting

Virtualization:

• VMware ESXi/vCenter
• Microsoft Hyper-V
• Other enterprise hypervisor platforms

Cloud Technologies (Desirable):

• AWS, Microsoft Azure, or Google Cloud Platform
• Hybrid cloud networking and infrastructure integration

Monitoring & Security Tools:

• PRTG, SolarWinds, Nagios, Zabbix, or equivalent monitoring solutions
• SIEM and endpoint security platforms

Storage & Backup:

• SAN/NAS administration
• RAID configuration
• Backup solutions such as Veeam or Backup Exec

Preferred Certifications:

• CompTIA Network+ or Security+
• Cisco CCNA or CCNP
• Microsoft Azure Administrator Associate, MCSA, or MCSE
• VMware VCP-DCV
• ITIL Foundation Certification
• Certifications in progress will also be considered.

Core Competencies:

• Strong analytical and troubleshooting skills
• Excellent communication and stakeholder management abilities
• High attention to detail and documentation standards
• Ability to manage multiple priorities in fast-paced environments
• Strong teamwork and collaboration skills
• Proactive mindset with commitment to continuous learning and improvement.

What We Offer

• Competitive salary and performance-based incentives
• Structured career development and growth opportunities
• Professional training and certification support
• Health insurance and pension benefits
• Paid leave and employee wellness support
• Exposure to enterprise-grade technologies and infrastructure projects
• Collaborative and innovation-driven work environment.

Application Closing Date
27th May, 2026.

How to Apply
Interested and qualified candidates should send in their CVs to: cv@ascentech.com.ng using "IT NETWORK ENGINEER" using the job title as the suubject of the mail.