Engineer Unix/Linux Systems

2 weeks ago

Singapore Singtel Full time

Engineer Unix/Linux systems:

Date:2 May 2024

Location:
Singapore, Singapore

Company:
Singtel Group

Be a part of something BIG
This role will work with a team of motivated, articulate, and knowledgeable IT professionals.

The primary task will be focusing on improving the stability and performance of the system, maintaining and improving the security posture of the systems, continuous monitoring of system health, and troubleshooting issues that arise.


He/She must be familiar with Linux operating systems and software, able to provide sound proofs-of-concepts, willing to perform cross-functional duties as necessary to aid the team and have a proven history of creating tools and automating routine IT/Business tasks.

He/She must also have experience in automation and configuration tool, such as Puppet, Ansible and Satellite

Make an Impact by:

Incident Management
Primarily responsible for Level 2/ level 3 Technical Support, Systems Management, Administration and Project Support for Linux platform.


Participate in 24/7 on-call rotation in support of our NOC, which includes being available to assist with issues when not on call.

Assist and respond promptly to incident, investigate & provide temporary &/or permanent resolution of incidents escalated.

Performance and Capacity Management
Installation, configuration and upgrade of Linux systems management software.

Proactively monitor the Linux systems to ensure secure services with minimum downtime.

Perform capacity planning, ensure high resiliency and optimal performance involving the associated hardware resources allocated to the operating system.

Responsible for providing trend analysis to management team to enable them to make informed decisions regarding resource management.

Change Management
Ensure that change management process is properly followed.

Plan and co-ordinate system changes. Present to CAB (change approval board) for changes that going into production for approval of change.

Manage changes through change request process & provide status reports to the relevant parties. (Service Now)

Operations and Support Management


Install and maintain security patches on the operational and development system, which includes but is not limited to, Red Hat Linux, Oracle Linux, Suse Linux, Apache Tomcat.

Monitors systems through multiple monitoring tools to proactively address system issues before they have the potential to cause outages ranging from file system clean
- up to replacement of various hardware such as power supplies, fans, boards, disks, DIMM's and other hardware components on x86 systems.


Perform daily backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary.

Perform regular file archival and purge as necessary.

Create, change, and delete user accounts per request as necessary.

Automate BAU tasks via shell scripting or tools, such as Ansible.

Write technical documents to include process, technical engineering and configuration documents as needed.

All other Linux administration responsibilities as assigned.

Provisioning of servers and services
Maintain our Linux infrastructure standard operating environment, including configurations and security management.

Highly proficient in provisioning of Linux VMs or Unix LPARs, LDOMs, OS installation, configuration and fine tuning.

Project manage operation projects related to Linux/Unix.

Vendor management
Work together with Infrastructure Manage Service vendor for RCA/PCA and adhere to Service Level Agreements.

Automation
Manage, Puppet infrastructure and implement change to automate configuration management and automation through Puppet.

Skills for Success:

  • Minimum bachelor's degree in computer science or equivalent.
  • Minimum 8 year of experience in Unix/Linux support
  • Overall, 812 years of experience in IT Infrastructure Support
  • Extensive experience in managing Unix/Linux platform not limited to Red hat Linux, Oracle Linux, AIX and Solaris.
  • Mandatory to have good experience in RedHat Linux systems including patching and Maintenance tasks.
  • Implementation of hardening as per CIS Benchmarks.
  • Thorough understanding of entire infrastructure including storage & cloud
  • Good Process knowledge & have managed Critical live Unix/Linux systems
  • Red Hat Linux 7/8/9 Certifications
  • Configuration Management tools Certifications (eg puppet)
  • Automation tools like Ansible
  • Cloud Certifications preferably Azure
  • ITIL Certified
  • AIX certification

Rewards that Go Beyond:

  • Full suite of health and wellness benefits
  • Ongoing training and development programs
  • Internal mobility opportunities
**We are committed to a safe and healthy environment for our employees & customers and will require all prospective employees to be fully vaccinated.

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