Linux Platform Engineer (Contract)

ICON OUTSOURCING; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

ICON OUTSOURCING is seeking an experienced Linux Systems Engineer in Singapore to install, secure, and optimize Linux environments (RHEL-based) across development, testing, and production. You will automate with Ansible, Bash, and Python, and support high-availability and disaster-recovery setups.

You will manage incident responses at Level 3, implement container workflows with Docker/Kubernetes, and ensure compliance with CIS, PCI-DSS, and MAS TRM guidelines.

Qualifications

• Degree in computer science/information technology.
• Minimum 4 years of IT Infrastructure Engineer experience supporting critical systems.
• Experience automating infrastructure with Ansible and shell scripting.
• Strong hands-on Linux (RHEL) skills: LVM, networking, kernel tuning.
• Experience with configuration management tools (Ansible preferred).
• Proficiency in Bash and familiarity with Python.
• Experience in large-scale production environments.
• Familiarity with containers (Docker/Kubernetes) is a plus.
• Understanding of security hardening and compliance standards.
• RHCSA/RHCE certification highly desirable.
• Ability to provide 24x7 on-call support.
• Strong knowledge of banking sector requirements.
• Experience with MAS TRM Guidelines and PCI-DSS is a plus.

Responsibilities

• Install, configure, harden, patch, and maintain Linux systems (RHEL-based).
• Perform OS tuning, performance optimisation, and capacity planning.
• Ensure system security compliance (CIS benchmarks, patching, remediation).
• Manage Linux systems across development, testing, production environments.
• Provide Level 3 support for Linux incidents and issues.
• Support high availability and disaster recovery configurations.
• Develop and maintain automation using Ansible, Bash, and Python.
• Automate provisioning, patching, and configuration management workflows.
• Work with BigFix for endpoint management and compliance reporting.
• Improve system efficiency via infrastructure-as-code practices.
• Monitor system health, logs, and performance with enterprise tools.
• Troubleshoot bottlenecks, kernel issues, and dependencies.
• Ensure high system availability and uptime.
• Work with Zabbix for monitoring and alerting.
• Support physical server infrastructure; coordinate with vendors.
• Maintain documentation of configurations, runbooks, and procedures.
• Ensure compliance with internal policies and security standards.

Skills

Problem solving

Communication

Independence

Documentation

Analytical thinking

Time management

Teamwork

Education

Degree in computer science / information technology

RHCSA/RHCE certification desirable

ITIL certification an added advantage

Tools

Ansible

Docker

Kubernetes

Zabbix

BigFix

Job description

Key Responsibilities:

Linux System Administration:

• Install, Configure, Harden, Patch, and maintain Linux systems (primarily RHEL-based distributions)
• Perform OS tuning, performance optimisation, and capacity planning
• Ensure system security compliance (CIS benchmarks, patching, vulnerability remediation)

Infrastructure Operations:

• Manage Linux systems across development, testing, and production environments
• Provide Level 3 support for Linux-related incidents and issues
• Support high availability and disaster recovery configurations

Automation & DevOps:

• Develop and maintain automation using Ansible, Bash, and Python
• Automate provisioning, patching, and configuration management workflows
• Working knowledge of BigFix for endpoint management, patch deployment, software distribution and compliance reporting.
• Continuously improving system efficiency through infrastructure-as-code practices

System Monitoring & Reliability:

• Monitor system health, logs, and performance using enterprise monitoring tools
• Troubleshoot system bottlenecks, kernel issues, and application dependencies
• Ensure high system availability and uptime
• Working knowledge of Zabbix for infrastructure monitoring, alert management, and performance monitoring.

Hardware & Platform Support:

• Support physical server infrastructure, including installation and maintenance
• Coordinate with vendors and internal teams for hardware-related issues

Documentation & Compliance:

• Maintain documentation of system configurations, procedures, and runbooks
• Ensure compliance with internal policies, security standards, and audit requirements

Requirements:

• Degree in computer science/information technology
• Minimum 4 years of experience in IT Infrastructure Engineer role supportingcritical system
• Experienced in developing infrastructure automation using Ansible and shell scripting.
• Strong hands-on expertise in RHEL / Linux (LVM, Networking, Kernel tuning)
• Experience with configuration management tools (Ansible preferred)
• Proficiency in shell scripting (Bash) and familiarity with Python
• Experience working in large-scale production environments
• Familiarity with containers (Docker/Kubernetes) is a plus
• Understanding of security hardening and compliance standards
• Red Hat certification (RHCSA/RHCE) is highly desirable
• Ability to provide 24x7 support and handle standby/on-call support whenever needed.
• Strong working knowledge of the banking environment.
• Experience with MAS TRM Guidelines and PCI-DSS security compliance requirements will be an added advantage.

Soft Skills:

• Strong problem-solving skills and the ability to troubleshoot complex issues.
• Excellent communication and collaboration skills.
• Ability to work independently and as part of a team.
• Detail-orientated with strong documentation skills.
• Self-motivated and possesses strong analytical skills, sharp and meticulous.
• Strong interpersonal skills and good time management skills.
• ITIL certification is an added advantage