Unix L3

KRIS INFOTECH PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

KRIS INFOTECH PTE. LTD.

in Singapore is seeking an experienced infrastructure engineer to install, configure, and harden UNIX/Linux servers, build development, test, UAT and production environments, and ensure robust, scalable platforms. You will collaborate with application, database, network, cloud and security teams, participate in planning and deployment activities, and develop automation scripts for provisioning and operations.

Qualifications

• Experience with Linux administration on RHEL/Oracle Linux.
• Ability to build UNIX server environments and perform security hardening.
• Scripting in Shell and Python for automation tasks.
• Experience with clustering/HA solutions and virtualization.
• Familiarity with cloud platforms and storage concepts.

Responsibilities

• Infrastructure Build & Implementation: Install, configure, and harden UNIX/Linux servers and build multi-environment setups.
• Project Support: Collaborate with application, database, network, cloud, and security teams through planning and deployment activities.
• Automation & Standardization: Develop scripts for provisioning and implement Infrastructure-as-Code practices.
• Security & Compliance: Apply OS hardening, patches, and ensure regulatory standards compliance.
• Documentation & Knowledge Transfer: Create build docs, SOPs, runbooks, and transfer knowledge to ops teams.
• Key Deliverables: Server builds, security hardening, automation scripts, deployment support, DR documentation.

Skills

Linux Admin

Unix Server Build

Security Hardening

Shell Scripting

Python Automation

Tools

VCS FSS / Veritas Cluster

VMware

AWS

Azure

SAN/NAS

Job description

Infrastructure Build & Implementation:

• Install, configure, and harden UNIX/Linux servers.
• Build project environments (Development, Test, UAT, Production).
• Configure storage, networking, security, and system services.

Project Support:

• Collaborate with application, database, network, cloud, and security teams.
• Participate in project planning, design reviews, and deployment activities.
• Ensure infrastructure readiness for application onboarding and releases.

Automation & Standardization:

• Develop automation scripts for server provisioning and operational tasks.
• Implement configuration management and Infrastructure-as-Code practices.
• Standardize server builds and deployment procedures.

Security & Compliance:

• Implement OS hardening and security best practices.
• Apply patches and remediate vulnerabilities.
• Ensure compliance with organizational and regulatory standards.

Documentation & Knowledge Transfer:

• Create and maintain build documents, SOPs, and operational runbooks.
• Provide knowledge transfer to operations and support teams.
• Maintain project-related technical documentation.

Key Deliverables:

• UNIX/Linux Server Build and Configuration.
• Security Hardening Compliance.
• Automation Scripts and Playbooks.
• Deployment and Cutover Support.
• Capacity and Performance Reports.
• Disaster Recovery Documentation.
• Technical Design Documents (TDD).
• Operational Runbooks and Knowledge Articles.

Requirements:

• Primary Skills :
  • Linux Administration (RHEL / Oracle Linux).
  • UNIX Server Build, Configuration & Security Hardening.
  • Shell Scripting / Python Automation.
• Secondary Skills :
  • High Availability & Clustering (VCS FSS / Veritas Cluster).
  • Cloud & Virtualization (AWS, Azure, VMware).
  • Storage Administration (SAN/NAS, LVM).
• Expected Skills:
  • Linux (RHEL, Oracle Linux).
  • VCS FSS, High Availability and Clustering Solutions.
  • Shell Scripting, Python, VMware, AWS, Azure.
  • Storage (SAN/NAS, LVM).
  • IBM MQ Added advantage.