Senior 24x7 Mission-Critical Systems Engineer

Maximus; Northern (KY); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Maximus is seeking an experienced onsite Senior IT Infrastructure Engineer to provide 24x7x365 expert-level support for mission-critical systems in a national security environment.

The role requires hands-on fault isolation, rapid outage response, disaster recovery execution, and collaboration with cross-functional teams to maintain uninterrupted services and audit-ready documentation.

U.S. citizenship or national status and ability to obtain a Public Trust are required.

Qualifications

• Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field (or equivalent experience).
• 10+ years of experience in data center operations, systems engineering, or infrastructure support in onsite, mission-critical environments.
• Ability to obtain and maintain a Public Trust is required. Active Public Trust and/or DHS Suitability is preferred. U.S. citizenship or U.S. national status required.
• Demonstrated experience supporting enterprise data center operations and infrastructure environments.
• Proven ability to perform advanced troubleshooting and restoration of hardware, server, storage, and network systems.

Responsibilities

• Serve as the onsite senior technical authority providing continuous 24x7x365 expert-level support.
• Perform hands-on fault isolation, troubleshooting, and restoration of critical infrastructure systems, including servers, storage, networking, and power/connectivity components.
• Execute rapid response actions during high-severity outages, including isolated troubleshooting in degraded environments.
• Coordinate with incident management, network, and remote engineering teams to restore enterprise services.
• Support disaster recovery procedures, including failover operations and DR testing.
• Monitor system health to proactively identify risks and prevent outages.
• Provide onsite support for high-risk changes and infrastructure upgrades.
• Coordinate with carriers, vendors, and stakeholders to support operations and restoration.
• Maintain documentation, runbooks, and operational procedures for auditability.
• Support SLA adherence by ensuring rapid response and proper communication during incidents.

Skills

Public Trust clearance

10+ years of experience

Onsite, mission-critical operations

Troubleshooting and fault isolation

Disaster recovery planning

Documentation and runbooks

Education

Bachelor's degree in IT / CS / Engineering

Tools

VMware

Hyper-V

Job description

Maximus is seeking an experienced onsite Senior IT Infrastructure Engineer to provide 24x7x365 expert-level support for mission-critical systems in a national security environment.

The role requires hands-on fault isolation, rapid outage response, disaster recovery execution, and collaboration with cross-functional teams to maintain uninterrupted services and audit-ready documentation.

U.S. citizenship or national status and ability to obtain a Public Trust are required.