Linux Admin

Lead migration of Unix/Linux servers from on-premises data centers to AWS EC2.

• Perform OS provisioning, configuration, patching and version upgrades on AWS-hosted instances.

• Implement OS hardening, security controls and compliance standards across environments.

• Support application deployments and troubleshoot OS-level issues for Java and .NET workloads.

• Coordinate with cloud, database and middleware teams during migration and cutover activities.

• Ensure system availability, performance and stability during migration and steady-state operations.

• Automate routine administration tasks using scripting and configuration best practices.

• Maintain system documentation, runbooks and operational procedures.

Must Have Technical/Functional Skills Strong hands-on experience administering Unix/Linux systems, primarily RHEL 7, RHEL 8 and RHEL 9.

• In-depth knowledge of Linux OS installation, configuration, patching, upgrades and lifecycle management.

• Proven experience in OS hardening, security baselines, user management and access controls.

• Experience supporting enterprise applications running on Java and .NET platforms.

• Exposure to Data Center Exit or on-premises to public cloud migration programs.

• Good understanding of system performance tuning, troubleshooting and capacity planning.

• Knowledge of scripting (Shell, Bash) for automation and operational efficiency.

• Ability to work with database, middleware (TIBCO) and infrastructure teams.

7+ years of overall Unix/Linux administration experience with at least 2-3 years on AWS.

• Hands-on experience running Linux workloads on AWS EC2.

• Understanding of AWS services such as EC2, EBS, VPC, IAM and CloudWatch.

• Experience supporting hybrid environments during transition from on-premises to cloud.

• Familiarity with automation, Infrastructure as Code or configuration management tools is an advantage.

• Exposure to DevOps practices and CI/CD pipelines impacting OS-level operations.

• Experience working in large, mission-critical enterprise migration programs.

• AWS or Linux certifications are preferred.