Unix Engineer - Part-Time

Key Responsibilities

·       Demonstrate strong expertise in RHEL system administration, including installation, configuration, hardening, and lifecycle management of Linux servers to ensure security, performance, andhigh availability.

·       Design, implement, and manage Linux clustering solutions, including Pacemaker clusters and IBM GPFS (Spectrum Scale) for high availability, scalability, and performance in on‑premises environments.

·       Monitor, troubleshoot, and optimize Linux infrastructure, covering compute, storage (including GPFS),networking, and security components.

·       Leverage operational experience to design and implement infrastructure improvements that enhance system security, stability, performance, and operational efficiency.

·       Develop, maintain, and continuously improve configuration management solutions using Ansible to automate provisioning, configuration, patching, and standard operational tasks.

·       Design, implement, and maintain automation playbooks and scripts using Ansible to streamline repetitive tasks, deployments, cluster operations, and configuration management.

·       Work closely with application, middleware, and storage teams to ensure seamless integration of Linux systems and GPFS storage with business applications and services.

·       Ensure Linux systems and clustering environments comply with internal security policies, industry standards, and regulatory requirements.

·       Proactively monitor system and cluster performance and conduct capacity planning to anticipate resource needs and ensure optimal performance.

·       Troubleshoot complex system, cluster, and storage incidents, manage escalations, and coordinate with vendors(including Red Hat and IBM) for advanced support as required.

·       Plan and execute scheduled preventive maintenance, including OS patching, upgrades, cluster maintenance, and system hardening activities.

·       Perform system and performance tuning, optimization, and capacity planning across standalone and clustered Linux environments.

·       Fulfil service requests and change requests in line with established ITSM and change management processes.

·       Manage and support VMware virtualized environments hosting Linux workloads.

·       Collaborate with cross‑functional teams and external vendors to support operational activities and project deliverables.

·       Provide day‑to‑day Linux system administration and operations support, including participation in 24x7 standby/on‑call rotation.

·       Provide technical input, design reviews, and advisory support for infrastructure and application projects.

·      Maintain accurate and up‑to‑date system, cluster, and configuration documentation.

Required Experience & Skills

·       5+ years of relevant working experience as a Unix administrator in on premise setup.

·       Strong technical knowledge and experience in administration and maintenance of Linux.

·       Excellent communication and stakeholder management skills.

·       Strong background in Unix technologies including High Availability and virtualization.

·       Storage admin/SAN technology from system perspective.

·       Familiarity with ITSM, ITIL, or other relevant frameworks is a plus.

·       Proven ability to identify and improve performance measurement and reporting processes in a large organization.

·       Experience of working collaboratively with multi-disciplinary teams with a delivery focus in both project and operational environments

·       Excellent spoken and written Business English skills and the ability to write clear and concise text for different audiences.

·       Ability to handle confidential information with tact and sensitivity.

A flexible approach to adapt to changing deadlines.

Thanks,

Saghana Sithara

BusinessManager, Recruitment| Quess Selection & Services, Singapore

EA LicenseNumber: 23C2060 Registration ID is R1550224

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