Senior Onsite Systems Engineer – 24/7 Critical Infra

Maximus; Bay St. Louis (MS); On-site; USD 100,000 - 140,000; Full time

Job summary

Maximus is seeking an onsite senior technical authority to provide 24x7x365 expert-level support for critical infrastructure, coordinating with incident management and engineering teams to restore services and maintain operational continuity.

You will perform fault isolation, troubleshooting, and restoration of servers, storage, networking, and power components while supporting disaster recovery activities and maintaining thorough documentation for auditability.

Qualifications

• Minimum requirements include ability to obtain and maintain Public Trust; U.S. citizenship or national status required.
• Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience).
• 10+ years of experience in data center operations, systems engineering, or infrastructure support in onsite, mission-critical environments.
• Experience supporting enterprise data center operations and infrastructure environments.
• Proven ability to perform advanced troubleshooting and restoration of hardware, servers, storage, and network systems.
• Experience supporting 24x7x365 mission-critical operations with strict SLA requirements.
• Strong understanding of data center components including compute, storage, networking, and power systems.
• Experience coordinating with incident management and cross-functional engineering teams.
• Hands-on troubleshooting in onsite, high-pressure environments during major outages.
• Disaster recovery planning, testing and execution experience.
• Ability to maintain technical documentation and runbooks.

Responsibilities

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

Skills

Onsite troubleshooting

24x7x365 support

Stakeholder coordination

Disaster recovery planning

Documentation & runbooks

Education

Bachelor’s degree in IT/CS/Engineering

Tools

VMware

Hyper-V

ITIL

Job description

Maximus is seeking an onsite senior technical authority to provide 24x7x365 expert-level support for critical infrastructure, coordinating with incident management and engineering teams to restore services and maintain operational continuity.

You will perform fault isolation, troubleshooting, and restoration of servers, storage, networking, and power components while supporting disaster recovery activities and maintaining thorough documentation for auditability.