Systems Administrator

Systems Administrator

Location: Owings Mills, MD

Onsite Flexibility: Hybrid

Contract Details

• Position Type: Contract
• Contract Duration: 12 months
• Pay Rate: $65.00-$70.00 / Hour (USD)
• Work Authorization: Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Job Summary

We are seeking a Senior Linux Administrator to manage and optimize enterprise operating system environments across on-premises and cloud platforms. This role is responsible for the design, administration, automation, and lifecycle management of Linux and VMware infrastructure supporting mission-critical workloads across multiple data centers and cloud environments. The ideal candidate brings strong technical expertise, operational discipline, and the ability to collaborate across teams to ensure high availability, performance, and security.

Key Responsibilities

• Design, implement, and support enterprise Red Hat Enterprise Linux (RHEL) solutions across physical and VMware environments.
• Manage provisioning and lifecycle operations, including LUN/volume allocation, host mapping, masking, and expansion.
• Manage and optimize advanced NAS platforms and file services using NFS (v3/v4) and autofs within Kerberos-enabled enterprise environments.
• Monitor and optimize Linux system performance, availability, and capacity using modern toolsets like Prometheus and Grafana .
• Execute Business-As-Usual (BAU) changes in strict alignment with enterprise change, incident, and service management processes.
• Support disaster recovery operations, including automated system replication, failover testing, and rapid incident response.
• Perform RHEL updates, firmware upgrades, and maintenance via Red Hat Satellite in accordance with strict compliance and lifecycle standards.
• Ensure strict compliance with security requirements, including OS hardening, SELinux configuration, vulnerability remediation, and audit support.
• Maintain comprehensive technical documentation, system runbooks, and CMDB/inventory records.
• Provide OS-level capacity planning, performance forecasting, and resource utilization reporting.
• Collaborate closely with dedicated storage, virtualization (VMware), backup, and cloud teams.
• Lead Linux operating system upgrades, server migrations, and infrastructure modernization initiatives.
• Participate in the team on-call rotation and provide Tier-3 technical support for critical incidents.

Required Skills

• Strong hands-on experience managing and configuring RHEL workloads within VMware vSphere and cloud environments.
• Solid understanding of Linux networking, multipathing, NFS, autofs, and connecting Linux hosts to SAN/NAS backends.
• Direct experience engineering and maintaining system configurations using Puppet and Ansible .
• Strong proficiency in Shell scripting and Ansible to automate routine administrative tasks.
• Familiarity with backup and disaster recovery concepts.
• Operational experience working within ITIL frameworks (change management, incident management, ServiceNow).
• Strong verbal and written communication skills with a proven ability to collaborate across infrastructure silos.

Preferred Skills

• Red Hat Certifications: Red Hat Certified Engineer (RHCE) or Red Hat Certified Architect (RHCA).
• VMware Certifications: VMware Certified Professional (VCP).
• Cloud Infrastructure: Experience integrating or migrating on-premises Linux workloads with cloud platforms (e.g., AWS).
• Large-Scale Operations: Proven experience operating in large, highly regulated enterprise data center environments.

Required Experience

• 7 years of enterprise Linux administration (specifically RHEL) experience.

Benefits

• Medical, Vision, and Dental Insurance Plans
• 401k Retirement Fund

About the Client

This client is a financial services and asset management organization operating in the Maryland region, with a strong emphasis on technology and data roles supporting fixed income and portfolio management operations. The firm employs senior infrastructure engineers, systems administrators, business systems analysts, and data professionals who collaborate across global teams to deliver enterprise-scale cloud infrastructure and data analytics solutions. The organization values diverse, inclusive workplaces and offers competitive contract engagements in the Owings Mills/Baltimore area.

About GTT

GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. We highly value diverse and inclusive workplaces and support Fortune 500 organizations across banking, financial services, technology, life sciences, biotech, utilities, and retail sectors throughout the U.S. and Canada.

Job Number: 26-08319