Senior Linux Engineer: Enterprise Systems & 24x7 Ops

Lenovo PCCW Solutions Limited; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

Lenovo PCCW Solutions Limited in Singapore seeks a skilled Linux professional with 3+ years of experience to support and manage enterprise Linux environments on physical servers and hypervisors. You will collaborate with the NOC team, network engineers, and DBAs to meet SLA requirements.

Responsibilities include server optimization, 24x7 on-call rotation, problem resolution with vendors, root-cause analysis, storage provisioning, security patches, and backup/DR operations.

Qualifications

• Minimum 3 years of Linux server administration experience, including installation, configuration, and troubleshooting.
• Experience with RHEL-based environments and related tools (Satellite or equivalent).
• Strong focus on OS hardening, CIS benchmarks, and security patching.
• Familiarity with LDAP and Kerberos for identity management.
• Experience with performance tuning, storage allocation, and LUN management.
• Experience supporting enterprise backup/DR strategies and disaster recovery.
• Ability to coordinate with NOC, network engineers, DBAs, and vendors.

Responsibilities

• Administer and optimize server performance.
• Perform 24 x 7 on-call stand-by on a rotating basis for critical systems.
• Coordinate with vendors and support teams on issues and upgrades.
• Perform root cause analysis and implement corrective actions.
• Provide technical assistance for applications and hardware issues.
• Manage storage provisioning and expansion.
• Apply security patches and OS updates in a timely manner.
• Handle user administration tasks.
• Support backup and disaster recovery operations.
• Provision and manage LUNs using enterprise storage.

Skills

Linux Administration

RHEL Administration

Security Patch Management

LDAP & Kerberos

Performance Tuning

Storage Management

On-Call Rotation

Vendor Coordination

Wintel Experience

OS Hardening (CIS)

Job description

Lenovo PCCW Solutions Limited in Singapore seeks a skilled Linux professional with 3+ years of experience to support and manage enterprise Linux environments on physical servers and hypervisors. You will collaborate with the NOC team, network engineers, and DBAs to meet SLA requirements.

Responsibilities include server optimization, 24x7 on-call rotation, problem resolution with vendors, root-cause analysis, storage provisioning, security patches, and backup/DR operations.