System Administrator (Prometheus, Grafana, OpenStack, Linux Administration, Azure)

EXASOFT PTE. LTD.; Singapore; On-site; SGD 80,000 - 110,000; Full time

Job summary

A tech solutions company in Singapore is seeking an experienced professional with a minimum of 12 years in Linux Administration, DevOps, and Cloud Operations. The ideal candidate will manage Linux systems, design cloud infrastructures, and automate processes in a dynamic environment. Strong expertise in tools such as AWS, Ansible, and various monitoring solutions is essential for this role, which promises a competitive package and impactful contributions in the tech landscape.

Qualifications

• 12 years of strong background in Linux Administration, DevOps, and Cloud Operations.
• Proficient in AWS, Azure, OpenStack, and related virtualization technologies.
• Experienced in Ansible, Puppet, and Shell scripting for deployment and automation.
• Hands-on experience managing CI/CD pipelines with GitLab and Git.
• Expertise in monitoring and logging tools like Nagios, Prometheus, Grafana, ELK, and Netcool.
• Skilled in database management including PostgreSQL and MySQL.

Responsibilities

• Administer and support Linux systems across multiple platforms.
• Design and manage cloud infrastructures ensuring high availability.
• Manage deployments across cloud and on-premise environments using automation.
• Implement and maintain Kubernetes and KVM for workload orchestration.
• Develop and manage CI/CD pipelines to support integration and delivery.
• Lead migration of monitoring solutions for better observability.
• Monitor infrastructure health using various tools.

Skills

Linux Administration

DevOps Practices

Cloud Operations

Automation with Ansible

CI/CD Pipelines

Database Management

Ansible

Puppet

Shell Scripting

CI/CD Pipelines

Tools

AWS

Azure

OpenStack

Ansible

GitLab

Git

Prometheus

Grafana

Elastic Stack (ELK)

PostgreSQL

MySQL

Job description

Responsibilities

• Administer and support Linux systems across RedHat, Ubuntu, CentOS, and Debian platforms.
• Design, deploy, and manage AWS, Azure, and OpenStack infrastructures, ensuring high availability and scalability.
• Manage deployments across AWS and on-prem environments using Ansible for automation and consistency.
• Implement and maintain Kubernetes and KVM virtualization environments for workload orchestration and resource optimization.
• Develop and manage CI/CD pipelines using GitLab and Git, supporting continuous integration and delivery processes.
• Automate configuration management using Ansible, Puppet, and custom Shell scripts.
• Lead the migration of monitoring solutions from Nagios to advanced platforms and Netcool, improving observability and alerting.
• Monitor infrastructure health using Prometheus, Grafana, and Elastic Stack (ELK).
• Support RHEL upgrades, system patching, and troubleshooting activities to ensure operational stability.
• Administer and tune PostgreSQL and MySQL databases, ensuring performance and reliability.
• Collaborate with cross-functional teams to resolve production issues and streamline DevOps practices.

Requirements

• Experienced professional with 12 years of strong background in Linux Administration, DevOps, and Cloud Operations.
• Proficient in AWS, Azure, OpenStack, and related virtualization technologies.
• Experienced in Ansible, Puppet, and Shell scripting for deployment and automation.
• Hands‑on experience managing CI/CD pipelines with GitLab and Git.
• Expertise in monitoring and logging tools — Nagios, Prometheus, Grafana, Elastic Stack (ELK), and Netcool.
• Skilled in database management (PostgreSQL, MySQL) and system troubleshooting.
• Familiar with RHEL upgrades, patching, and lifecycle management.