Senior Linux Administrator

TOP Skills - 10 years+, Senior Linux Admin (Ubunto or RHEL), AWS, VMWare, Splunk/Cloudwatch, Puppet, Clustering, DEGREE/ Certs strongly desired Linux System Administration

• Perform routine patching to assigned systems.
• Respond to incident and request tickets raised in the service management system within required SLAs.
• Provision and maintain Linux infrastructure on-premise and in Amazon Web Services (AWS) Cloud.
• Build and maintain system monitoring tools such as BigFix, Nagios, Spunk, Nessus, CloudWatch etc.
• Ensure systems are backed up nightly or as defined in the backup and restoration policy.
• Implement new storage and file system requests from customers.
• Maintain a High-Performance Compute cluster comprised of Linux servers.
• Act in the event of system failure, due to an error, to restore the operation of software systems.
• In conjunction with the Storage team, ensure efficient use of NetApp storage resources.
• Update documentation using local standards to ensure systems are accurately reflected in documentation.
• Maintain overall industry knowledge on latest trends, technology, etc.

Server Operating System Administration

• Build Linux operating system servers.
• Build Linux virtual machines on the VMWare platform.
• Build EC2 machines in AWS Cloud.
• Implement security benchmarks such as DISA STIGs or CIS Benchmarks.
• Define and maintain system configurations using tools such as Puppet.
• Monitor system vulnerabilities using Nessus and Splunk dashboards.
• Patch and upgrade Linux servers.
• Perform in-place migration upgrades of VMs and physical hardware.

Basic Qualifications

• 10 or more years' experience as a Linux System Administrator.
• Successful applicants are expected to have a bachelor's in Computer Science, Data Science, Mathematics, Statistics, Economics, or a related field and a minimum of 5 years of related experience or a master's degree and a minimum of 4 years of related experience.
• Expert knowledge of Ubuntu Linux Operating system. Certifications such as Ubuntu or Red Hat Certified System Administrator is preferred.
• Networking fundamentals (TCP/IP configuration on servers).
• Experience with implementing Kerberos.
• Experience with Puppet configuration management tool to be able to create and modify Puppet modules and code.
• Proficiency in one or more scripting languages such as bash, perl, python etc.
• Experience with configuring directory services (Active Directory, LDAP).
• Experience with using tools such as BigFix, SCCM, Splunk.
• Experience with configuring and maintaining infrastructure in the Cloud - AWS EC2, EBS, EFS, RDS, FSx etc.
• Experience with infrastructure as code tools such as terraform.
• Experience with Netapp storage is preferred.
• Experience with High Performance Computing is preferred.
• Experience with Splunk is preferred.
• Knowledge of ITIL practices is preferred.
• Familiarity with ServiceNow platform is preferred.
• 2 or more years of experience in a Continuous Integration/Continuous Delivery (CI/CD) environment.
• Experience with planning and executing successful migrations or upgrades of operating systems between major versions (Linux, Network, Storage, RDBMS, and/or Windows).
• Experience maintaining technical documentation using C4 Model nomenclature and diagrams or similar.
• Experience working in an economic research or academic environment preferred. 3B Staffing LLC