Technology Systems & Infrastructure Engineer

Job Summary

We are seeking an experienced Technology Systems & Infrastructure Engineer to design, deploy, manage, and maintain enterprise IT and Operational Technology (OT) infrastructure across corporate and project environments.

The successful candidate will provide technical leadership in infrastructure deployment, industrial networking, server administration, virtualization, cybersecurity, and systems integration, with particular emphasis on Industrial Operations Control Centre (IOCC) projects and AVEVA System Platform implementations.

The role requires strong hands on technical expertise, project execution capabilities, and the ability to coordinate infrastructure implementation from planning and installation through commissioning, testing, and client handover.

Key Responsibilities

IT Infrastructure & Systems Administration

Design, deploy, and maintain enterprise IT infrastructure, servers, storage, and business critical systems.

Administer Windows Server, Linux, Active Directory, Group Policies, DNS, DHCP, and Microsoft 365.

Manage virtualization platforms, including VMware ESXi and Hyper V.

Implement backup, disaster recovery, and business continuity solutions.

Industrial Systems & AVEVA Platform

Deploy, configure, upgrade, and integrate AVEVA System Platform solutions within IOCC environments.

Support integration with SCADA, PLCs, HMIs, OPC servers, and industrial communication gateways.

Configure application servers, historian servers, engineering workstations, and operator stations.

Troubleshoot industrial systems and integration issues to ensure availability and optimal performance.

Network Infrastructure & Communications

Configure and maintain Cisco switches, routers, firewalls, wireless networks, and VPN solutions.

Design and manage secure LAN, WAN, VLAN, and industrial network architectures.

Coordinate structured cabling, fibre connectivity, rack installations, and network commissioning.

Monitor network performance and implement high availability and redundancy solutions.

Cybersecurity & Information Protection

Implement and monitor infrastructure security controls, endpoint protection, and firewall configurations.

Conduct vulnerability assessments, access reviews, and security incident investigations.

Enforce cybersecurity policies and support compliance with applicable industry standards.

Project Implementation & Systems Integration

Coordinate infrastructure deployment from technical planning through installation, testing, and commissioning.

Supervise the installation of servers, networking equipment, video walls, operator consoles, and workstations.

Coordinate Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), and client demonstrations.

Ensure project deliverables meet approved specifications, schedules, budgets, and quality requirements.

Prepare technical documentation and support client handover.

Technical Support & Vendor Management

Provide Level 2 and Level 3 technical support for infrastructure and systems related incidents.

Coordinate OEMs, contractors, vendors, and system integrators to resolve technical issues.

Support technology procurement, licensing, preventive maintenance, and IT asset management.

Maintain infrastructure records, network diagrams, operating procedures, and implementation reports.

Technical Leadership & Stakeholder Management

Provide technical guidance to junior engineers and technical support personnel.

Collaborate with Project Managers, Automation Engineers, clients, and other stakeholders.

Provide technical recommendations for infrastructure upgrades, capacity planning, and technology improvement.

Ensure compliance with company policies, project specifications, and client requirements.

Qualifications and Requirements

Bachelor's Degree in Computer Science, Information Technology, Computer Engineering, Electrical/Electronics Engineering, or a related discipline.

Minimum of 5-8 years of relevant progressive experience in systems administration, enterprise infrastructure, network engineering, or industrial IT.

Proven hands on experience with Windows Server, Linux, Active Directory, VMware, Microsoft 365, and enterprise networking.

Demonstrable experience in Engineering, Oil & Gas, EPC, Industrial Automation, Manufacturing, Utilities, or critical infrastructure environments.

Strong knowledge of cybersecurity, virtualization, storage, backup, and disaster recovery.

Experience managing vendors and delivering infrastructure implementation projects.

Experience with AVEVA System Platform, SCADA, Industrial Control Systems (ICS), or Operational Technology (OT) is a strong advantage.

Relevant certifications such as CCNA, CCNP, Microsoft, VMware VCP, Azure Administrator, ITIL, or cybersecurity certifications are desirable.

Excellent troubleshooting, analytical, documentation, communication, and project coordination skills.

Core Competencies

Enterprise IT Infrastructure Management

Windows and Linux Server Administration

Network Engineering and Cisco Infrastructure

VMware and Virtualization Technologies

Microsoft 365 and Identity Management

AVEVA Systems, SCADA and OT Infrastructure

Cybersecurity and Information Protection

Backup, Disaster Recovery and Business Continuity

Systems Integration and Project Delivery

Technical Leadership and Vendor Management

Minimum qualifications

BA/BSc/HND

How to apply

Interested and qualified candidates should send their CV to: hr@limeswood.com.ng

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