Senior Linux Administrator
Job details
Position Senior Linux Administrator. Job Summary We are seeking a highly skilled and experienced Linux Administrator to join our team. The ideal candidate will have a strong background in Linux system administration, virtualization using KVM, high-performance computing, and cloud computing platforms such as AWS and Azure. As a Linux Administrator, you will be responsible for managing and maintaining our Linux-based systems, virtualization infrastructure, and cloud resources to ensure high availability, security, and performance. Key Responsibilities
- Linux System Administration:
- Install, configure, and maintain Linux servers (Red Hat, CentOS, Ubuntu, etc.).
- Perform system upgrades, patches, and security hardening.
- Monitor system performance and troubleshoot issues.
- Manage user accounts, permissions, and file systems.
- Implement and maintain backup and disaster recovery solutions (Veeam Backup Tool Experience is a plus).
- Virtualization (KVM):
- Set up and manage virtual machines using KVM (Kernel-based Virtual Machine).
- Allocate resources, configure networking, and optimize VM performance.
- Troubleshoot virtualization-related issues and ensure high availability.
- Good understanding of Oracle Linux Virtualization Manager.
- Good understanding of Hard Partitioning with Oracle Linux KVM.
- Hands-on experience in Virtual CPU pinning to optimize the usage of Oracle DB and WebLogic licenses.
- High Performance Computing:
- Experience with HPC scheduling software.
- Experience with the installation and systems administration of high-performance compute (HPC) systems including Linux clusters and parallel data storage systems.
- Experience with a range of programming languages relevant for systems administration and HPC.
- Cloud Computing (AWS and Azure):
- Deploy and manage cloud instances and services on AWS and Azure.
- Monitor and optimize cloud resources for cost efficiency.
- Implement security best practices for cloud environments.
- Manage cloud-based databases, storage, and networking components.
- Automation and Scripting:
- Develop and maintain automation scripts (Bash, Python, etc.) for routine tasks.
- Implement Infrastructure as Code (IaC) using tools like Terraform or Ansible.
- Security and Compliance:
- Implement security policies, access controls, and firewall rules.
- Perform regular security audits and vulnerability assessments.
- Ensure compliance with industry standards and regulations.
- Collaboration and Documentation:
- Collaborate with cross-functional teams to support application deployments.
- Maintain comprehensive documentation of system configurations and procedures.
- Provide training and guidance to team members as needed.
- Ability to write relevant components of a proposal document (e.g., Prepare RFP, Answer specific RFP questions).
- Implement and document processes and procedures to ensure compliance with standard business practices.
- Troubleshooting and Support:
- Provide support for critical systems and respond to incidents promptly.
- Troubleshoot and resolve system and network issues.
- Participate in On-Call rotation schedules.
- Good knowledge of ITIL concepts, Incident, Change, and Problem Management processes and ticketing tools (Knowledge in Service Now tool is a plus).
- Bachelor’s degree in computer science, Information Technology, or related field (or equivalent experience).
- Proven experience as a Linux Administrator with at least 5 years of experience.
- Strong expertise in virtualization technologies, specifically KVM.
- Strong expertise in HPC.
- Hands-on experience with AWS and Azure cloud platforms.
- Proficiency in scripting and automation.
- Knowledge of networking protocols and security best practices.
- Excellent problem-solving and communication skills.
- Relevant certifications (e.g., RHCE, AWS Certified SysOps Administrator, Azure Administrator) is a plus.
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