Cloud Linux Engineer (Level 2)

About the role

Multi-Cloud Linux Operations - Provide L2 operational supportfor Linux distributions (RHEL 7/8/9, CentOS, Ubuntu, Amazon Linux 2/2023) inon-premises and multi-cloud environments - Support cloud operationspredominantly on Amazon Web Services, Microsoft Azure and Google Cloud Platform - Hands-on experience with cloudservices including: EC2, S3, IAM, EBS, CloudWatch, Systems Manager (SSM), AWSBackup, Security Groups, VPC, Lambda, ECS, EKS, Azure Virtual Machines, AzureKubernetes Service (AKS), Azure Storage, Azure Monitor, Azure Automation, AzureBackup, Compute Engine, Google Kubernetes Engine (GKE), Cloud Storage, CloudMonitoring, Cloud IAM - Manage and support Linux systemservices, systemd, networking, firewalls (iptables/firewalld), SELinux/AppArmor - Monitor and maintain Linuxworkload performance, availability, and ensure cloud security baseline acrosscloud platforms - Participate in 24/7 shiftrotation to provide round-the-clock operational support Operating System Patch Management - Perform comprehensive OSpatching for Linux environments using YUM/DNF, APT, AWS Systems Manager, andAzure Update Management - Execute monthly and quarterlypatch cycles with coordination and approval workflows - Maintain kernel patching andupdates while ensuring system stability and uptime - Deep expertise in LinuxOperating System patching, including pre-patch validation, deployment, andpost-patch verification - Basic knowledge of WindowsServer patching using WSUS and cloud-native tools - Track patch compliance andgenerate reports for audit and compliance purposes - Coordinate patch windows andcommunicate with stakeholders Application Deployment & Troubleshooting - Deploy and configureapplications on Linux operating systems - Troubleshoot application issuesat the OS level, including permissions, services, dependencies, and performance - Support application teams withOS-level diagnostics and resolution - Perform application loganalysis using tools like grep, awk, sed, and centralized logging platforms - Configure and manage webservers (Apache, Nginx) and application servers (Tomcat, JBoss) - Collaborate with developmentteams to resolve infrastructure-related application problems ITIL & Service Management - Resolve incidents and servicerequests related to Linux systems via ITSM platforms - Follow ITIL processes forIncident, Problem, Change, and Request Management - Create and update tickets withdetailed documentation and resolution steps - Escalate complex issues toLevel 3 engineers and track resolution progress - Participate in Change AdvisoryBoard (CAB) reviews and change implementations - Maintain SLAs and ensure timelyticket resolution Security & Compliance - Execute CIS (Center forInternet Security) security remediations and hardening baselines for Linuxsystems - Implement and review IAMpermissions using IAM Access Analyzer, Azure RBAC, and GCP IAM with leastprivilege model - Perform VulnerabilityManagement System (VMS) remediation based on scan findings - Execute Cloudscaperecommendations in collaboration with InfoSec teams - Work on Security threatdetection tools and perform remediation - Configure and maintainSELinux/AppArmor security policies - Implement SSH hardening, sudopolicies, and access controls - Support security compliancescanning and remediation activities - Maintain securityconfigurations and monitor for security alerts - Implement and maintain SSL/TLScertificate management and renewal processes Container & DevSecOps - Demonstrate working knowledgeof container technologies (Docker, Kubernetes, ECS, EKS, AKS, GKE) - Support containerized Linuxapplications and microservices architectures - Familiarity with DevSecOpspractices and tools used in Singapore Government technology stack (SHIP-HATS) - Understand CI/CD pipelineconcepts and security integration - Basic knowledge of containerorchestration and pod management Automation & Scripting - Develop and maintain Bash/Shellscripts for routine tasks, automation, and remediation - Proficiency in Python scriptingfor automation and system administration tasks - Utilize AWS CLI, Azure CLI, andgcloud CLI for cloud operations - Create and execute SSMDocuments and Azure Automation Runbooks for automated remediation - Experience with configurationmanagement tools (Ansible preferred) - Automate repetitive operationaltasks to improve efficiency Backup & Disaster Recovery - Implement and maintain backupand recovery strategies for Linux servers in cloud environments - Perform backup validations andparticipate in disaster recovery testing - Experience with backup tools(rsync, tar, AWS Backup, Azure Backup, snapshots) - Support business continuityplanning activities - Document and test recoveryprocedures Documentation & Knowledge Management - Create and maintain technicaldocumentation, knowledge articles, and standard operating procedures (SOPs) - Document troubleshooting steps,configurations, and remediation procedures

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