UNIX / LINUX Management-SME

Job Description

• Install, configure, and administer UNIX/Linux servers e.g., RHEL, Oracle Linux, Solaris/AIX as applicable for project environments.
• Provision and standardize server builds including OS installation, baseline configuration, and environment hardening.
• Manage user/group administration, sudo policies, PAM controls, and implement least privilege access.
• Configure and maintain storage and filesystems LVM, multipath, NFS, including mount strategy, performance and resilience.
• Set up and validate network configuration IP, routing, DNS, NTP, firewall rules, ensuring connectivity to application and database tiers.
• Implement system security controls: patching cadence, CIS-like hardening, SSH policies, audit logging, endpoint protection integration.
• Automate repetitive admin tasks using shell scripting and tools such as Ansible or similar automation framework.
• Configure and manage services and daemon lifecycle systemd/init, log rotation, and basic observability integration.
• Perform performance monitoring and tuning CPU, RAM, disk IO, network, and assist in root cause analysis of incidents.
• Support middleware/application installation prerequisites packages, kernel params, ulimits, file descriptors, shared libraries.
• Coordinate with storage/network/security teams for firewall approvals, VLANs, load balancers, certificates, and access pathways.
• Ensure adherence to change management: raise RFCs, implement approved changes, and document build and configuration decisions.
• Participate in implementation milestones: readiness checks, deployment support, cutover execution, and hypercare.
• Prepare and maintain technical documentation: build guides, hardening evidence, support runbooks, and handover packs.

Typical deliverables

• Standard server build template, hardening evidence, patching report, access matrix, configuration baseline, cutover checklist, support runbook.

Requirement

• Minimum of 5 years post-NYSC professional experience
• Experience in OLVM Cluster Development
• Hands-on experience with setup and deployment of OLVM clusters
• Experience working on OLVM Cluster Development projects VGC