Description At Credence, we support mission-critical federal missions through technology, partnership, and trust. We provide solutions across cloud modernization, cybersecurity, enterprise infrastructure, and advanced technology for defense and health organizations. Credence is a privately held company recognized as a top place to work and listed on the Inc. 5000 Fastest-Growing Private Companies list for more than a decade. We believe in servant leadership and focus on the success of our clients, employees, and partners. Position Summary Credence is seeking an Operations Support Engineer / Systems Administrator to support systems engineering and hosting operations for federal customers. The primary responsibility of this position is to support recurring system patching requirements, including scheduled nightly patching activities outside normal business hours. The selected candidate will execute and monitor existing AWX/Ansible patching automation, validate results, troubleshoot failures, and coordinate remediation activities across Linux and Windows environments. The role will also support system administration, configuration management, vulnerability remediation, monitoring, troubleshooting, documentation, and other operational activities required to maintain secure and reliable hosting environments. Responsibilities Responsibilities include, but are not limited to: Execute and monitor scheduled patching jobs through AWX/Ansible. Support scheduled nightly patching activities outside normal business hours, including patch preparation, execution, post-patch validation, and troubleshooting. Review AWX job results, investigate failed or incomplete patching runs, resolve issues, and coordinate re-execution when necessary. Review patching requirements, repository content, maintenance schedules, and approved change requests before patch execution. Validate system health, services, connectivity, and application availability after patching activities. Troubleshoot patching failures, package conflicts, repository issues, dependency problems, service failures, and unexpected system behavior. Monitor patching progress and provide status updates, completion reports, and exception information. Identify systems that cannot be patched and document the reason, impact, risk, and required remediation. Support Linux and Windows server administration, configuration, hardening, maintenance, and troubleshooting. Assist with vulnerability remediation and compliance-related system maintenance activities. Support server provisioning, operating system upgrades, configuration changes, system retirement, and technical refresh activities. Troubleshoot operating system, storage, networking, authentication, permissions, certificates, services, and application dependencies. Coordinate with Systems Engineering, Platform Engineering, application teams, cybersecurity personnel, and customer stakeholders to resolve technical issues. Assist with maintaining AWX job templates, inventories, variables, credentials, procedures, and related documentation. Use existing automation and develop scripts or process improvements to improve patching efficiency, validation, reporting, and operational support. Maintain accurate system records, patching documentation, procedures, runbooks, and operational reports. Follow approved change-management, incident-management, security, and configuration-management processes. Participate in scheduled maintenance activities, incident response, and other operational support activities as required. Participate in a rotating on-call schedule, if assigned.