Sr Linux System Administrator

VSG Business Solutions • Owings Mills, MD

21h • Hybrid

About The Position

The Sr Linux System Administrator supports critical infrastructure and high-availability systems in a large enterprise environment. The role guides NFS storage migrations for Unit Systems – EPS Stabilization and supports Linux, VMware, cloud, and server infrastructure. The position works onsite Tuesday, Wednesday, and Thursday, with a hybrid work setup. It includes 24/7 support, participation in an on-call rotation, and after-hours maintenance and deployments. The administrator works under the supervision of Team Leads and/or a Manager.

Requirements

• Senior-level Unix/Linux expertise.
• A bachelor's degree in Computer Science or a related field and 5–7 years of relevant experience in IT infrastructure support, application support, cloud computing, or disaster/recovery; alternatively, 6–9 years of relevant work experience.
• Demonstrated proficiency in at least one operational domain, such as storage, compute, database, collaboration, application support, cloud hosting, or related technologies.
• Ability to lift up to 25 pounds to rack servers, with assistance or server lifts as needed.
• Ability to travel domestically.
• Availability for 24/7 on-call rotational duties.

Nice To Haves

• Experience in a Fortune 200–500 enterprise environment; non-government backgrounds preferred.
• Experience in Fortune 500 financial services or large-volume system administration strongly preferred.
• Experience administering physical and virtual on-premises servers, Microsoft Azure, and Oracle Cloud Infrastructure.
• Experience with Oracle Enterprise Linux, Solaris, or Exadata hardware.
• Experience with a scripting language such as Python or Shell.
• Zerto experience.
• Certifications such as Azure Administrator, Oracle Cloud Administrator, VMware, or Red Hat Enterprise Linux Server.
• Demonstrated knowledge of current VMware hypervisor technology.
• Working-level knowledge of backups, RAID, SAN, and NAS storage.
• Excellent written and verbal communication skills, including the ability to explain highly technical information in non-technical terms.
• Ability to make well-thought-out decisions on complex or ambiguous issues.
• Understanding of change management principles for sustaining high availability and preventing change-related incidents caused by human performance factors.
• Ability to take direction from Team Leads and the Manager.

Responsibilities

• Manage Red Hat 6, 7, 8, and 9 servers from hardware and operating-system perspectives.
• Guide NFS storage migrations and coordinate migrations with approximately 200 application teams.
• Discuss technical migration options with application teams and complete data migrations according to schedule.
• Manage VMware vSphere hypervisor support in a highly available virtualized environment.
• Configure and maintain server processes, configurations, backups, platform health, and performance.
• Plan and implement Linux security patching, infrastructure changes, and production releases.
• Automate processes, track issues, document changes, and maintain accurate CMDB and server inventory records.
• Provide 24/7 support, participate in an on-call rotation, and perform after-hours maintenance and deployments.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior