Infrastructure Engineer (RHEL)

Manpower Singapore; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading consultancy in Singapore is looking for a Linux Infrastructure Engineer who will manage enterprise-scale infrastructure in a 24x7 production environment. Candidates must have 5-7 years of experience in infrastructure support and operating system administration, along with proficiency in Linux administration and shell scripting. The role includes operational responsibilities, security compliance, and collaborating with various teams to ensure system availability and performance.

Qualifications

• 5‑7 years of experience in infrastructure support and operating system administration.
• Minimum 3 years of hands‑on experience supporting production applications.
• Proficiency in shell scripting is mandatory.

Responsibilities

• Operate in a 24x7 shift‑based environment to support critical systems.
• Monitor system performance and availability to ensure optimal functionality.
• Collaborate with infrastructure and application teams on projects.

Skills

Linux administration

Shell scripting

Infrastructure monitoring

Communication skills

Incident management

Education

Degree in Information Technology or related field

Tools

RHEL 7/8/9

Zabbix

Job description

About the Role

We are seeking an experienced Linux Infrastructure Engineer to support and manage enterprise-scale infrastructure in a 24x7 production environment. This role plays a critical part in ensuring system availability, performance, and security, while partnering closely with application and infrastructure teams to support BAU operations, projects, and incident management.

You will act as a Subject Matter Expert (SME) for Linux administration and automation, contributing to infrastructure design reviews, production onboarding, and security compliance initiatives.

Key Responsibilities

Infrastructure Management

• Operate in a 24x7 shift‑based environment to support critical systems
• Monitor system performance and availability to ensure optimal functionality
• Perform routine system maintenance and Linux administration tasks
• Execute Linux OS patching and administrative activities for projects and BAU
• Maintain system security to ensure continuous availability of Linux servers
• Collaborate with infrastructure and application teams from requirements gathering through implementation
• Review and analyse infrastructure architecture, identifying gaps and improvement opportunities
• Provide guidance to application teams on troubleshooting infrastructure‑related issues
• Act as SME for Linux administration and automation

Operations & Process

• Prepare technical project and implementation plans for new BAU initiatives
• Collaborate with application and infrastructure teams to design technical solutions and enhancements
• Participate in incident management calls and contribute to root cause analysis (RCA)
• Provide L2 support for incidents and security‑related events
• Drive onboarding of new applications into the production environment

Security & Compliance

• Assist in deploying, maintaining, and enhancing infrastructure security in line with internal security directives
• Implement administrative, preventive, detective, and reactive controls, including:
• Change and configuration management
• Patch management
• Anti‑virus and system scans
• Security incident response

Requirements

• Degree in Information Technology or any related field
• 5‑7 years of experience in infrastructure support and operating system administration
• Minimum 3 years of hands‑on experience supporting production applications
• Hands‑on experience with RHEL 7/8/9 (patching, administration, troubleshooting)
• Proficiency in shell scripting
• Experience with monitoring tools (e.g. Zabbix) is good to have
• Excellent written and verbal communication skills
• Ability to lead discussions, drive meetings, and coordinate across multiple stakeholders