At Xtremax, you will work on the infrastructure that keeps critical business applications and data available, secure, and recoverable. As a Unix/Linux & Backup Administrator, you will be responsible for administering enterprise Linux environments and backup infrastructure across on-premises and cloud platforms.
You will work hands-on with Red Hat Enterprise Linux, enterprise backup environments, server provisioning, security hardening, automation, monitoring, and disaster recovery. The role provides opportunities to solve complex infrastructure issues, improve operational resilience, and collaborate closely with application, database, network, cloud, and cybersecurity teams.
This is a practical infrastructure engineering role for someone who enjoys keeping systems reliable while continuously improving how they are managed, secured, monitored, and recovered.
Responsibilities
Install, configure, administer, troubleshoot, and maintain Unix/Linux servers, particularly Red Hat Enterprise Linux environments
Provision, maintain, and decommission servers across development, testing, and production environments
Perform OS hardening, security patching, vulnerability remediation, and configuration compliance checks
Monitor system availability, capacity, logs, and performance, and resolve infrastructure incidents promptly
Administer user accounts, privileged access, file systems, storage, permissions, system services, and scheduled jobs
Manage enterprise backup infrastructure, including backup policies, schedules, retention requirements, and storage capacity
Monitor backup jobs, investigate failures, resolve exceptions, and support system, application, database, and file-level backup and recovery requirements
Conduct restoration tests and disaster recovery exercises to validate system and data recoverability
Develop and maintain shell scripts, Ansible playbooks, and automated workflows for provisioning, patching, backup monitoring, recovery validation, compliance checks, and reporting
Maintain accurate CMDB records, SOPs, technical documentation, operational runbooks, and recovery procedures while working with infrastructure and application teams on technical changes
Requirements
Degree or Diploma in Computer Science, Information Technology, Engineering, or a related discipline
Relevant experience administering enterprise Unix/Linux and backup environments
Strong hands-on knowledge of Red Hat Enterprise Linux, including system services, storage, file systems, networking, permissions, package management, logging, security, and troubleshooting
Experience with enterprise backup technologies, including configuration, monitoring, troubleshooting, restoration, and disaster recovery testing
Good understanding of backup retention, encryption, access control, off-site protection, and recovery requirements
Experience in server provisioning, patching, performance monitoring, vulnerability remediation, and disaster recovery
Working knowledge of shell scripting and automation tools such as Ansible
Strong analytical, documentation, communication, and stakeholder-management skills
Ability to participate in incident response, planned maintenance, and operational support outside normal working hours when required
Preferred
Familiarity with virtualisation and cloud infrastructure
Exposure to storage technologies, Infrastructure as Code, ITSM, CMDB, and observability tools
Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE)
Relevant enterprise backup technology certification
Relevant Ansible, cloud, virtualisation, or IT service management certification
Benefits
By submitting your resume/CV, you consent and agree to allow the information provided to be used and processed by or on behalf of Xtremax Pte Ltd for purposes related to your registration of interest in current or future employment with us and for the processing of your application for employment.
You also represent to us that you have obtained the consent of your…