System Administrator

5 days ago


Singapore EXASOFT CONSULTING PTE. LTD. Full time

**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.


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