Senior Linux Engineer at Apex Group

Key duties and responsibilities

• Design, build, maintain, and support enterprise Linux server platforms across production, development, and test environments.
• Provide advanced troubleshooting and root-cause analysis for complex Linux operating system, performance, networking, storage, and application hosting issues.
• Develop and maintain Bash scripts to automate system administration, health checks, patching, reporting, deployment, and operational tasks.
• Implement and support orchestration and configuration management solutions such as Ansible, Puppet, Chef, SaltStack, or similar tooling.
• Standardise Linux server builds, baseline configurations, patching processes, access controls, monitoring, and operational runbooks.
• Lead Linux platform lifecycle activities, including provisioning, upgrades, migrations, capacity planning, decommissioning, and vulnerability remediation.
• Collaborate with infrastructure, cloud, security, network, database, application, and service management teams to deliver reliable and secure Linux services.
• Act as a senior escalation point during critical incidents, high-priority service issues, and complex operational investigations.
• Maintain and improve monitoring, alerting, logging, and observability for Linux platforms using enterprise monitoring and log analytics tools.
• Ensure Linux environments comply with organisational security, audit, regulatory, and operational standards, including hardening and access management requirements.
• Create and maintain technical documentation, standard operating procedures, automation documentation, and knowledge base articles.
• Identify opportunities to reduce manual effort, improve service reliability, and increase repeatability through automation and orchestration.
• Support infrastructure projects, cloud migration initiatives, disaster recovery planning, backup validation, and platform resilience improvements.

Experience and skills

• Proven experience as a Senior Linux Engineer, Linux Systems Engineer, Linux Administrator, or similar infrastructure engineering role.
• Strong hands-on experience with enterprise Linux distributions such as Red Hat Enterprise Linux, Oracle Linux, Ubuntu Server, Debian, or SUSE Linux.
• Bash scripting skills, including automation of administrative tasks, log parsing, scheduled jobs, reporting, validation checks, and repeatable operational workflows.
• Experience with orchestration and configuration management tools such as Ansible, Puppet, Chef, SaltStack, Terraform, or similar automation platforms.
• Strong understanding of Linux networking, DNS, SSH, firewalls, package management, storage, filesystems, systemd, cron, logging, and kernel-level troubleshooting.
• Experience with security hardening, vulnerability remediation, patch management, privileged access controls, and audit/compliance requirements.
• Experience supporting Linux workloads in virtualised, cloud, or hybrid environments, including Azure,OCI,AWS etc.
• Good understanding of monitoring, alerting, backup, disaster recovery, capacity management, and incident/problem management processes.
• Familiarity with container platforms and orchestration technologies such as Docker, Kubernetes, OpenShift, or similar would be advantageous.
• Excellent analytical, troubleshooting, documentation, stakeholder management, and communication skills.
• Relevant certifications such as RHCSA, RHCE, Linux+, LPIC, LFCS, LFCE, or cloud/platform engineering certifications would be advantageous.