Linux Openshift

Recruiter

A 1L Realization (Pty) Ltd

Job Ref

JHB000956/Tshid

Date posted

Thursday, June 11, 2026

Location

Johannesburg, South Africa

SUMMARY

Our client in the Telecommunications & Networking sector is looking for a Linux OpenShift contract for 6 to 12 months.

POSITION INFO

Requirement Specification

• Maintain stable, secure, and high-performing Linux platforms that support [apps/services].
• Deliver automation and engineering improvements, including Infrastructure as Code (IaC), CI/CD, and scripting, to reduce manual effort and minimise incidents.
• Strengthen the compliance posture through effective patching, hardening, and logging aligned with [standards].
• Provide development and operational support for Linux-based services, platforms, and supporting tools.

Linux Engineering

• Build, configure, and administer Linux servers across development, test, OpenShift and production environments.
• Manage the full operating system lifecycle, including provisioning, patching, upgrades, kernel tuning, and repository management.
• Administer storage and file systems, including LVM, multipath, RAID, NFS/SMB, mounts, and quotas.
• Manage identity and access controls, including LDAP/AD integration, sudo policies, PAM, and SSH hardening.
• Configure and troubleshoot networking components such as bonding, VLANs, routing, and firewall rules using iptables or nftables.
• Provide L3 Linux administration with OpenShift monitoring capability aligned operational and audit requirements.
• Linux Administration (RHEL): build, patch, upgrade, troubleshoot
• OpenShift Monitoring agent setup, alert tuning, incident integration
• Migrate environments from VMWare to OpenShift

Security and Compliance

• Apply CIS/STIG hardening baselines where appropriate.
• Manage vulnerability remediation, EDR integration, auditing, and log forwarding through tools such as syslog, journal, or rsyslog.
• Support certificate management, key rotation, and the secure handling of secrets through Vault or equivalent key management solutions.

Operations and Reliability

• Maintain monitoring and alerting capabilities using tools.
• Provide L2/L3 incident and problem support, including triage, root-cause analysis, and corrective actions.
• Support DR and BCP readiness through backup integration, restore testing, and maintenance of operational runbooks.