Unix/Linux System Administrator

Unix/Linux System Administrator for a long-term Public Sector IT consulting engagement.

Experience: 4+ years



Location: NYC hybrid (3 days) - local NY/NJ only

Key Responsibilities

• Design, configure, implement, and maintain UNIX/Linux infrastructure environments.
• Develop system design specifications that meet infrastructure, operational, security, and availability requirements.
• Prepare general and detailed infrastructure designs, evaluating alternative approaches where appropriate.
• Develop specifications for servers, operating systems, storage, networks, security systems, databases, and communication systems.
• Create structured diagrams and technical documentation for infrastructure, network, storage, and security environments.
• Compile, maintain, and document system configurations, including servers, operating systems, monitoring tools, utilities, and communication systems.
• Develop and maintain operational, installation, configuration, and support procedures.
• Establish guidelines and upgrade procedures for operating systems, hardware, network systems, security systems, and client-server environments.
• Design, test, and maintain highly available and resilient enterprise infrastructure environments.
• Support infrastructure enhancements, upgrades, changes, and implementation activities in collaboration with technical teams.
• Design and maintain system monitoring, audit trails, logging, and security mechanisms.
• Provide technical assistance and escalation support for complex infrastructure, system, database, and IT issues.
• Troubleshoot and resolve system performance, availability, configuration, and integration issues.
• Perform infrastructure testing, evaluation, and validation to ensure operational readiness.
• Implement, configure, and maintain SAN storage and SAN Fabric environments across multiple storage platforms.
• Collaborate with infrastructure engineers, system administrators, developers, support teams, and other stakeholders.
• Maintain accurate technical, operational, and user documentation.

Required Qualifications

• 4+ years of professional experience in infrastructure administration, systems administration, or a related IT field.
• Strong hands-on experience building, configuring, and supporting highly available and scalable infrastructure environments.
• Strong experience managing and maintaining UNIX/Linux operating systems.
• Experience supporting Linux server and containerized environments.
• Experience with infrastructure design, configuration management, and enterprise systems support.
• Experience designing or supporting three-tier infrastructure architectures.
• Experience with SAN storage and SAN Fabric switches across multiple storage platforms.
• Experience developing and maintaining technical, operational, installation, and user documentation.
• Understanding of infrastructure availability, resiliency, monitoring, security, and performance requirements.
• Strong troubleshooting, analytical, communication, and technical documentation skills.