Cloud Linux Engineer

PCCW SOLUTIONS INSYS PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

PCCW Solutions Insys PTE. LTD. is seeking a seasoned Linux/Unix Administrator to manage enterprise Linux servers, implement CIS security hardening, and support DevOps deployments.

The role requires 5+ years of Linux experience, strong knowledge of Kubernetes, Docker, Ansible, and cloud infrastructure automation. You will collaborate with development teams on access control matrices and incident response. The candidate should be proficient in Terraform/CloudFormation, CI/CD pipelines, and

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Cloud Engineer possess at least one of the following certifications (or equivalent):
• Hands-on experience with at least Azure cloud platform.

Responsibilities

• Manage Linux servers in an enterprise systems environment.
• Perform Linux/UNIX security hardening in accordance with CIS guidance.
• Provide technical guidance on Linux/UNIX security matters.
• Handle L2-level incidents, service requests, and escalations related to cloud infrastructure.

Skills

Linux administration

Kubernetes

Docker

Ansible

Cloud platforms (AWS/Azure)

Terraform/CloudFormation

CI/CD pipelines

Networking (TCP/IP, DNS, SSH)

Scripting

Security hardening (CIS)

Access control / SUDO

Incident management

Monitoring (Datadog/Prometheus/ELK)

Storage (LVM/RAID)

Education

Bachelor's degree in Computer Science / Information Technology

Tools

Datadog

Splunk

Prometheus

ELK stack

CloudWatch

Azure Monitor

Terraform

CloudFormation

ARM templates

Jenkins

GitHub Actions

Azure DevOps

Job description

• Linux System Administration experience minimum 5 years.
• 3 Year work exp in WOG.
• Manage Linux servers in an enterprise systems environment.
• Responsible for Linux/UNIX security hardening in accordance with the CIS guidance.
• Perform Linux/UNIX server takeover process and security hardening compliance verification processes.
• Good Knowledge in Kubernaties, dockers and containers.
• Good understanding/Execution knowledge in ansible playbooks.
• Provide technical expertise in the area of Linux/UNIX security matters and work closely with Application Development team to establish and develop application access control matrix.
• Granting and assignment of access privileges based on the approved access control matrix for Linux/UNIX platform.
• Provide appropriate technical guidance and advisory on Linux/UNIX platform security matters.
• Implementation and administration of System Access Control using SUDO on Linux/UNIX platform.
• Minimum 3 years’ Experience in Cloud and WOG environment.
• Strong knowledge of Linux system administration
• Experience with Linux distributions (RHEL, Ubuntu, CentOS)
• Shell scripting and automation
• Networking concepts (TCP/IP, DNS, SSH, NFS)
• System monitoring and troubleshooting
• Storage management (LVM, RAID)
• Handle L2-level incidents, service requests, and escalations related to cloud infrastructure (e.g., AWS, Azure).
• Monitor cloud environments for health, performance, and security using tools like CloudWatch, Azure Monitor.
• Implement infrastructure changes based on change management policies.
• Participate in cloud resource provisioning and automation using IaC tools like Terraform, CloudFormation, or ARM templates.
• Apply patches, updates, and upgrades to cloud systems and services as needed.
• Maintain documentation for standard operating procedures and troubleshooting steps.
• Support DevOps and development teams during deployments and incident investigations.
• Assist in cost optimization efforts by analyzing cloud usage and suggesting improvements.

JobRequirements:

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Cloud Engineer possess at least one of the following certifications (or equivalent):

(A)Microsoft Certified Solution Expert Cloud Platform and Infra;

• Hands-on experience with at least Azure cloud platform .
• Familiarity with infrastructure as code (Terraform, CloudFormation, etc.).
• Experience with CI/CD pipelines and automation (e.g., Jenkins, GitHub Actions, Azure DevOps).
• Good understanding of networking, virtualization, DNS, and firewalls.
• Proficient in using monitoring/logging tools (e.g., Datadog, Splunk, Prometheus, ELK stack).
• Strong troubleshooting and problem-solving skills.