Systems Administrator

C5MI is not your typical consulting firm. We are a high-performance team of SAP and supply chain experts who solve complex, mission critical challenges for organizations that cannot afford failure. We hire consultants who thrive in complexity, move fast, take ownership, and deliver under pressure. At C5MI, you will not be siloed or stuck in theory. You will be hands on, client facing, and directly influencing outcomes that matter. Our culture rewards initiative, accountability, and continuous growth. This is a place where your expertise is valued, your work is meaningful, and your performance truly matters. If you’re energized by learning through real-world challenges, collaborating with top-tier talent, and expanding your capabilities every day, C5MI is where strong consultants level up. Note: This position is contingent upon contract award. Applicants must be a U.S. Citizen with an active Secret clearance for this role. Position Summary: The Systems Administrator (Windows / Unix-RHEL) is responsible for the installation, configuration, administration, maintenance, and support of Windows Server and Red Hat Enterprise Linux (RHEL) environments supporting the Navy ERP+ program. This role ensures the stability, security, performance, and availability of enterprise infrastructure supporting mission-critical SAP and non-SAP applications. The Systems Administrator provides operational support for development, test, training, and production environments, performs system monitoring and maintenance activities, and supports modernization initiatives. This position works closely with Basis, Database, Security, Integration, Development, Cloud, and Infrastructure teams to ensure reliable operation of Navy ERP+ systems and services. Due to the nature of the Navy ERP+ environment, this position requires adherence to DoD cybersecurity requirements, configuration management controls, and government compliance standards. Essential Functions and Responsibilities: Server Administration and Operations Install, configure, administer, and maintain Windows Server and Red Hat Enterprise Linux (RHEL) operating systems. Manage physical, virtual, and cloud-hosted server environments supporting Navy ERP+ applications and services. Perform routine system administration activities including patching, upgrades, account management, and system maintenance. Monitor server health, availability, capacity, and performance to ensure operational stability. Troubleshoot and resolve operating system, hardware, storage, and infrastructure issues. Infrastructure Support Support enterprise application environments including SAP, web servers, middleware, file transfer services, and supporting technologies. Configure and maintain server resources, storage allocations, file systems, and operating system services. Support load balancing, clustering, high availability, and disaster recovery configurations where applicable. Coordinate infrastructure activities with network, cloud, database, and application support teams. Security and Compliance Implement and maintain operating system security controls in accordance with DoD cybersecurity requirements. Apply Security Technical Implementation Guides (STIGs), security patches, and vulnerability remediation activities. Support RMF compliance activities, audits, vulnerability assessments, and security reviews. Assist with implementation of security directives, IAVAs, CTOs, and other government-mandated security requirements. Maintain system hardening standards and security documentation. Performance Monitoring and Optimization Monitor system utilization, performance, and capacity trends. Analyze system performance metrics and recommend improvements to optimize operations. Support proactive monitoring and automated alerting solutions. Perform root cause analysis and corrective actions for recurring infrastructure issues. Backup, Recovery, and Continuity Operations Support backup, recovery, and disaster recovery processes. Participate in Continuity of Operations (COOP) planning, testing, and execution activities. Assist with recovery testing and validation of critical infrastructure services. Maintain recovery documentation and operational procedures. Change Management and Modernization Support Support infrastructure upgrades, migrations, refreshes, and modernization initiatives. Participate in configuration management and change control processes. Prepare and maintain technical documentation, implementation plans, and operational procedures. Support transition activities associated with Navy ERP+ modernization efforts. Cross-Functional Collaboration Coordinate with SAP Basis, Database Administration, Security, Integration, and Development teams to resolve complex technical issues. Support system deployment activities and operational readiness efforts. Provide technical recommendations for infrastructure improvements and modernization initiatives. Assist project teams with infrastructure planning and implementation activities. Required Qualifications: Active DoD security clearance with T5 investigation. Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience). 5+ years of experience administering enterprise Windows Server environments. 5+ years of experience administering Red Hat Enterprise Linux (RHEL) environments. Experience supporting enterprise applications in production environments. Experience with virtualization technologies such as VMware or equivalent platforms. Experience performing operating system patching, upgrades, troubleshooting, and performance tuning. Strong understanding of server hardware, storage, networking, and infrastructure concepts. Experience supporting security compliance requirements and vulnerability remediation efforts. Strong analytical, troubleshooting, and problem-solving skills. Desired/Preferred Qualifications Experience supporting SAP landscapes including SAP ERP, SAP S/4HANA, or related enterprise applications. Experience supporting cloud environments such as AWS GovCloud, Azure Government, or hybrid cloud architectures. Experience with automation and scripting technologies such as PowerShell, Bash, Python, or Ansible. Familiarity with DevSecOps and Infrastructure as Code concepts. Experience supporting DoD, Navy, or other federal government environments. Red Hat, Microsoft, VMware, or equivalent technical certifications. We anticipate this job posting will be posted until 07/30/2026. Benefits: C5MI offers a market competitive suite of benefits including medical, dental, vision, life, and long-term disability coverage, a 401(k) plan, bonus opportunities, paid holidays, and paid time off. See more information on our benefits here: C5MI Benefits Our employees are key to our success, so we strive to be more than just a team; we’re a community built upon a set of Core Values that guide our every action: Challenge – We believe in challenging the present – it’s the only way to shape the future. We must be exceptional communicators and collaborators while always learning. We also understand that speaking your mind requires equal parts brain (what to say), thoughtfulness (when to say it), and caring (how it’s said). Incremental won’t win. Have Fun – We are on a journey, together. Take care of your family, take care of yourself, and take care of each other. Live your happiness. Stay human, take care of each other and invest in your community. Life isn’t all about work. Live your happiness. Be healthy. All In – You can’t fake passion – show your energy. Own it – take charge and lead. Our team is made up of top quartile talent and we never accept second best. Accountability, trust, and integrity create an environment to realize the team’s true potential. Never Forget the Customer – We have walked a mile in your shoes. Experience matters. We drive innovation to generate business value. Be true – no BS. GSD (Get Stuff Done) – We take initiative and never make excuses. We act with urgency, and we delivery high quality outcomes with extreme velocity. We embrace process discipline, drive continuous improvement, and stay audit ready. We relentlessly execute and plan for tomorrow by creating sustainable outcomes. That is how we win! Empower – Our people are the foundation for our success. We recognize their value, and support them by fostering a culture of collaboration and innovation. We recognize individual strengths, build confidence through action, and invest in personal development. How to Apply: To apply for this position, use the application link provided in this job posting and complete the application and submit a resume. If the position requires a specific certification, please be sure to upload a copy of your certification when you apply. If you would like to be considered for employment opportunities with C5MI and have accommodation needs such as for a disability or religious observance, please call us toll free at 1 (904) 431-7922 or send us an email here or speak with your recruiter. C5MI is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, pregnancy-related conditions, and lactation), gender identity or expression (including transgender status), sexual orientation, marital status, military service and veteran status, physical or mental disability, genetic information, or any other characteristic protected by applicable federal, state, or local laws and ordinances.