Job Description – Senior DevOps & Linux Infrastructure Engineer

Overview

We are seeking an experienced Senior DevOps & Linux Infrastructure Engineer to join our infrastructure team. The successful candidate will be responsible for designing, implementing, automating, and maintaining enterprise Linux and cloud infrastructure while ensuring high availability, security, and operational excellence across production environments.

This role requires strong expertise in Linux administration, AWS Cloud, DevOps practices, CI/CD automation, containerization, and enterprise infrastructure support.

Key Responsibilities

Design, deploy, and maintain highly available Linux-based infrastructure across production and non-production environments.
Build, manage, and optimize AWS cloud infrastructure including EC2, VPC, Security Groups, NACLs, EFS, FSx, CloudWatch, Auto Scaling, ELB, and SSM.
Implement and maintain CI/CD pipelines using Jenkins integrated with Git and other DevOps tools.
Deploy and manage containerized applications using Docker, Kubernetes, and OpenShift.
Automate infrastructure provisioning and configuration management using Ansible, Chef, Shell scripting, and Python.
Perform operating system installation, patch management, upgrades, vulnerability remediation, and performance tuning.
Configure and administer Linux (RHEL), Solaris, and Unix environments.
Monitor system health, availability, and performance using Splunk, CloudWatch, and enterprise monitoring solutions.
Support infrastructure migration projects including cloud migration, server consolidation, virtualization, and data centre migration.
Configure and maintain enterprise backup and disaster recovery solutions including Veritas NetBackup.
Implement security best practices including privileged access management, server hardening, and network security configurations.
Perform troubleshooting and root cause analysis for production incidents and drive permanent resolutions.
Develop technical documentation, operational procedures, and Standard Operating Procedures (SOPs).
Participate in disaster recovery exercises and business continuity planning.
Work closely with application, network, security, and project teams to deliver infrastructure solutions.
Provide technical leadership and mentor junior engineers where required.

Requirements

Experience

Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline.
Minimum 8–15 years of experience in Linux Systems Administration, DevOps, or Infrastructure Engineering.
Experience supporting mission-critical enterprise production environments.

Technical Skills

Operating Systems

Red Hat Enterprise Linux (RHEL)
Solaris
Unix
AIX (preferred)

Cloud Platforms

Amazon Web Services (AWS)
OpenShift (preferred)
Pivotal Cloud Foundry (PCF) (preferred)

DevOps & Automation

Jenkins
Git
Bitbucket
Ansible
Chef
Docker
Kubernetes
YAML
Shell Scripting
Python

AWS Services

EC2
VPC
Security Groups
Network ACLs
CloudWatch
Auto Scaling
EFS
FSx
SSM
Elastic Load Balancer (ELB)

Monitoring

Splunk
CloudWatch
Enterprise Monitoring Tools

Infrastructure

VMware
KVM Virtualization
Veritas Cluster
Veritas NetBackup
Network Infrastructure
Disaster Recovery
Backup & Restore

Preferred Skills

Experience with enterprise banking, telecommunications, or large-scale production environments.
Knowledge of Infrastructure as Code (IaC).
Experience with change management and ITIL processes.
Strong troubleshooting and analytical skills.
Excellent communication and stakeholder management skills.

Certifications

AWS Certified Solutions Architect / SysOps Administrator
Red Hat Certified System Administrator (RHCSA) or RHCE
Certified Kubernetes Administrator (CKA)
Splunk Certifications
Ansible Certification
Sun Certified Solaris Administrator

Key Competencies

Linux Infrastructure Administration
AWS Cloud Engineering
DevOps & Automation
CI/CD Pipeline Development
Infrastructure Monitoring
Production Support
Incident & Problem Management
Disaster Recovery
Infrastructure Security
Performance Optimization
Technical Leadership
Cross-functional Collaboration

If you believe you fit the requirements for the role, please submit your application below or drop us an email directly quoting the job title.

Due to an anticipated high volume of applicants, we regret that only shortlisted candidates will be notified. The information provided is for recruitment purposes only.

Know someone who would be a great fit for this role? Refer them to us and get rewarded.

Cornerstone Global Partners (EA License Number:19C9859) is an affirmative equal-opportunity employer and recruitment firm. We evaluate qualified applicants without regard to race, colour, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.

Eugene Then
eugene.then@cornerstoneglobalpartners.com

EA Registration Number: R22104742.

Cornerstone Global Partners Pte Ltd (EA License:19C9859)