Job description

About Us: PMAT is an innovative small business founded with a passion for developing forward-leaning solutions from exceptional people that increase the mission's capability. We focus on designing and building impactful digital solutions that utilize modern cloud, data, and software concepts. Our passion is working on complex and progressive challenges such as edge platform computing, containerizing legacy platforms, distributed data platforms, or heterogeneous data analysis. We recruit, retain, and foster a team motivated to pursue passions, investigate new ways of doing things, and embody an innovative and entrepreneurial spirit. We believe in being curious about every element of a problem and experiment relentlessly. We foster continuous learning in an environment that encourages positive collaboration and expands our capabilities. We tap into collective intelligence, acknowledging that the most brilliant people may not be in the room. Above all else, we believe that delivering and demonstrating is more potent than a sheet of paper. We are passionate about mission-centric design and delivering effective capabilities to and for the warfighter. Whether you’re an experienced engineer or just beginning your career, you’ll work alongside experts who are committed to solving mission-critical problems. If you’re passionate about using your skills to make a real difference, apply today and become part of a team that’s shaping the future of defense technology! About the role: We are seeking a highly skilled and motivated Senior System Administrator to join the PMAT Information Technology team. The ideal candidate will have a deep understanding of, and hands-on experience with managing Windows and Linux-based systems and network equipment. This candidate will be integral to ensure the stability, security, and performance of our servers and systems, and play a critical role in supporting our organization's IT operations and business objectives. Candidate will have a thorough understanding of how to assess and remediate vulnerabilities, apply necessary patches, and continuously monitor systems to uphold the highest standards of security and compliance within a government or defense-related IT environment. Responsibilities: • Manage and maintain Windows, Linux, and ESXi servers, VPNs, hardware and software, including installation, configuration, and ongoing updates • Implementing and managing backup and recovery procedures to protect data and ensure system availability. • Managing network infrastructure, including routers, firewalls, and other network devices. • Implement and maintain security hardening compliance across various systems and network infrastructure • Develop and maintain backup and recovery plans to ensure data integrity and availability • Provide support to end-users, including resolving system-related issues and answering technical queries • Assessment and remediation of vulnerabilities according to cyber security guidelines • Ensuring the security of systems and networks, including implementing security measures, managing user access, and monitoring threats. • Monitor and track and corporate infrastructure products (hardware and software) for license tracking and End of Life planning • Research and Investigate exploits and vulnerabilities and implement recommended remediations • Apply security patches and updates in a timely manner to keep systems secure and up to date • Installing software updates and upgrades, testing new software, and ensuring compatibility with existing systems. • Monitor server performance, troubleshoot issues, and optimize system performance • Develop and maintain backup and recovery plans to ensure data integrity and availability • Maintain detailed documentation of system configurations, procedures, and troubleshooting steps • Provide support to end-users, including resolving system-related issues and answering technical queries • Monitoring system performance, identifying bottlenecks, and implementing improvements to optimize system efficiency. Required Skills and Experience: • At least 8 to 10 years of related work experience in a Network or System Administrator position. Prefer candidates to have had supervisory experience managing teams of other network and system administrators. • Exceptional time management skills with a strong ability to multi-task • Deep knowledge and proven experience administering Windows and Linux operating systems (e.g., Red Hat, CentOS, Rocky Linux) • Strong knowledge of Cybersecurity Maturity Model Certification (CMMC) compliance standards, DISA STIG guidelines, and Operating System and Network hardening • Proficiency in shell scripting and automation tools (e.g., Bash, Python, Ansible). • Strong understanding of networking concepts and protocols (TCP/IP, DNS, DHCP). • Experience with virtualization and containerization technologies (e.g., VMware, Docker). • Familiarity with security assessment tools and vulnerability scanning tools • Familiarity with Amazon Web Services or other Cloud technologies (GCC High, Microsoft 365, Azure, Intune, etc) • Must possess CompTIA Security+ certification Education and Certification Requirements: • Bachelor’s degree in information technology, or a related field (or equivalent work experience) Citizenship and Clearance requirements: • US Citizenship required • SECRET or higher security clearance Location: Onsite in San Diego, CA Work Environment: PMAT offices as needed. In some cases, work in a government facility may be required. Travel may be required for customer engagement, team coordination, and potentially for business development. PMAT is an equal-opportunity employer. We believe in hiring a diverse workforce and sustaining an inclusive, people-first culture. We are committed to non-discrimination on any protected basis, such as disability and veteran status, or any other basis covered under applicable law. #CJ

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