Linux Administrator

The Linux Administrator is responsible for the reliability, security, and performance of Linux-based systems supporting on-premises and AWS EC2 environments. The role exists to operate, migrate, optimize and support RHEL workloads as they transition from on-prem infrastructure into AWS, ensuring service continuity, security compliance, and cost-effective cloud operations. Success is measured by system stability, successful migration outcomes, automation maturity, and operational efficiency. RESPONSIBILITIES & DUTIES - Administer, configure, and maintain Linux servers (RHEL, Amazon Linux, Ubuntu) across on-premises and AWS EC2 environments, ensuring availability, performance, and security. - Support and execute on-premises to AWS EC2 lift-and-shift migration activities, including system assessment, AMI creation, cutover planning, post-migration validation, and issue remediation. -Manage AWS EC2 infrastructure including instance provisioning, right-sizing, AMIs, EBS volumes, security groups, IAM role integration, and lifecycle management. -Implement automation and configuration management using tools such as Ansible, shell scripting, or Terraform to reduce manual effort and configuration drift. -Monitor system health, troubleshoot incidents, perform root-cause analysis, and participate in on-call rotation to meet SLAs during steady-state and migration phases. -Apply OS hardening, patching, vulnerability remediation, and support compliance and security standards across hybrid environments . POSITION REQUIREMENTS Required -Bachelor’s degree in Computer Science, Information Technology, or equivalent practical experience -5+ years of experience as a Linux Systems Administrator in enterprise environments -2+ years of hands-on experience administering AWS EC2 in production -Strong experience administering RHEL in on-prem and/or cloud environments -Experience supporting business-critical systems during infrastructure changes or migrations Preferred -Experience with large-scale on-prem to AWS migration initiatives -Experience in hybrid infrastructure environments -AWS Certified SysOps Administrator- Associate or higher or equivalent certification (preferred, not required) -Experience with Infrastructure-as-Code (IaC)(Terraform, Ansible, CloudFormation) · Experience with scripting/automation in Bash, Python, or PowerShell Technical Skills -Advanced Linux system administration, troubleshooting, and performance tuning -AWS EC2, EBS, AMIs, security groups, and IAM role integration -Lift-and-shift migration concepts, system validation, and post-migration support -Automation and scripting (Bash, Ansible, Terraform preferred) -OS hardening, patch management, and vulnerability remediation Physical Abilities / Demands -Ability to support after-hours maintenance windows and possible on-call rotations -Ability to work extended periods at a computer and respond to incidents as required KNOWLEDGE & COMPETENCIES - Ability to make operational and technical decisions related to system configuration, migration readiness, troubleshooting, and cloud resource optimization -Capable to plan and execute work independently, coordinate with network, cloud, application, and security teams, and escalates risks appropriately, providing technical guidance to peers or project teams. -Must be able to troubleshoot both routine operational issues and complex migration-related problems involving OS behavior, cloud infrastructure, and application dependencies. Requiring disciplined troubleshooting, adaptability, and a bias toward automation and long-term operational improvement rather than one-off fixes. Offer -Seguro de gastos medicos mayores familiar, Seguro de vida, fondo de ahorro, vales de despensa, vales de restaurante, bono anual, apoyo deportivo, prima vacacional del 100%, 15 días de vacaciones, 30 días de aguinaldo y estacionamiento.