Senior Unix Engineer

The Apex Group was established in Bermuda in 2003 and is now one of the world’s largest fund administration and middle office solutions providers.

Our business is unique in its ability to reach globally, service locally and provide cross-jurisdictional services. With our clients at the heart of everything we do, our hard-working team has successfully delivered on an unprecedented growth and transformation journey, and we are now represented by over circa 13,000 employees across 112 offices worldwide.Your career with us should reflect your energy and passion.

That’s why, at Apex Group, we will do more than simply ‘empower’ you. We will work to supercharge your unique skills and experience.

Take the lead and we’ll give you the support you need to be at the top of your game. And we offer you the freedom to be a positive disrupter and turn big ideas into bold, industry-changing realities.

For our business, for clients, and for you

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.

Disclaimer: Unsolicited CVs sent to Apex (Talent Acquisition Team or Hiring Managers) by recruitment agencies will not be accepted for this position. Apex operates a direct sourcing model and where agency assistance is required, the Talent Acquisition team will engage directly with our exclusive recruitment partners.