Senior System Administrator - Enterprise IT & Security

Columbia Technology Partners; Maryland; On-site; USD 130,000 - 175,000; Full time

Benefits offered by this job

Medical plans

Vision & Dental

401k

Paid PTO

Career growth assistance

Life insurance

Profit sharing bonus

Referral bonus program

Job summary

Columbia Technology Partners is seeking System Administrators to support the implementation, maintenance, troubleshooting, and optimization of mission‑critical IT systems and infrastructure. The ideal candidate will provide operational support across servers, storage, networks, operating systems, and end‑user environments while ensuring system reliability, performance, and security.

Opportunities exist for experienced admins supporting enterprise environments ranging from hands‑on operational

Qualifications

• Bachelor's degree in a technical discipline from an accredited college or university.
• Five additional years of System Administrator experience may be substituted in lieu of a bachelor's degree.
• Level 2: Ten (10) years of System Administrator experience supporting programs and contracts of similar scope, type, and complexity.
• Level 3: Fifteen (15) years of System Administrator experience supporting programs and contracts of similar scope, type, and complexity.

Responsibilities

• Provide implementation, troubleshooting, and maintenance support for IT systems and infrastructure.
• Manage the day‑to‑day operation, configuration, and monitoring of IT systems.
• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support for hardware, software, network, storage, and operating system issues.
• Assist users with system access, functionality, and technical support requests.
• Support client, server, storage, network, and mobile device environments.
• Configure, manage, and maintain UNIX, Windows, or other applicable operating systems.
• Install, upgrade, and troubleshoot operating system software and network components.
• Analyze and resolve system issues while maintaining system integrity and performance.
• Support ticket escalation processes and communicate status updates to management and customers.
• Perform system capacity analysis, resource planning, and operational optimization.
• Provide detailed technical analysis and recommendations for escalated issues.
• Support dispatch operations and remain engaged through problem resolution.
• In addition to the responsibilities above, Level 3 candidates will:
• Support the design and integration of systems, mission architectures, and associated hardware solutions.
• Apply knowledge of system administration interdependencies within Service‑Oriented Architecture (SOA) environments.
• Analyze and resolve complex server, application, software integration, and infrastructure issues.
• Provide advanced technical expertise for enterprise system administration and operational support activities.

Education

Bachelor's degree in a technical discipline

Five (5) years of System Administrator experience substituted for Bachelor's

Level 2: Ten (10) years of System Administrator experience

Level 3: Fifteen (15) years of System Administrator experience

Job description

Columbia Technology Partners is seeking System Administrators to support the implementation, maintenance, troubleshooting, and optimization of mission‑critical IT systems and infrastructure. The ideal candidate will provide operational support across servers, storage, networks, operating systems, and end‑user environments while ensuring system reliability, performance, and security.

Opportunities exist for experienced admins supporting enterprise environments ranging from hands‑on operational