Cyber Infrastructure Support Engineer with Security Clearance

We are seeking an experienced and proactive Cyber Infrastructure Support Engineer to provide enterprise-level support across system administration, virtualization, network operations, and cybersecurity compliance. This position is part of a high-performing team responsible for maintaining core IT infrastructure, enabling secure and efficient operations across mission-critical environments. This role involves hands-on management of systems and networks, ensuring identity and access controls, supporting information system security accreditation, and developing automation to enhance system performance and reliability. Ideal candidates will bring a blend of technical expertise, security awareness, and the ability to thrive in complex enterprise environments. Primary Responsibilities: Administer and support enterprise Windows Server and Active Directory environments. Manage and maintain VMware vSphere 7 infrastructure. Operate Cisco-based network systems and provide troubleshooting and optimization support. Oversee physical infrastructure and hardware lifecycle, including Dell servers and SAN storage platforms. Support system identity, authentication, and access management functions. Participate in the preparation, maintenance, and submission of documentation required to achieve and maintain system authorization. Apply automation to improve system deployment, monitoring, and maintenance. Evaluate and document technical and security controls in alignment with NIST 800-53. Utilize GRC tools (e.g., RiskVision, Xacta, JCAM) to support ongoing risk and compliance tracking. Collaborate with cybersecurity professionals to maintain compliance with federal regulations and internal security policies. Contingent upon funding and selection At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our "Family of Professionals." Learn about our employee-centric culture and benefits here . Required Experience Required Qualifications: One of the following combinations of education/experience: Bachelors degree or higher in related field and 4-9 years of experience in enterprise infrastructure support, systems administration, or a related role OR High school diploma and 12-17 years of experience in enterprise infrastructure support, systems administration, or a related role. Strong technical background in: Microsoft Windows Server and Active Directory NIST 800 series publications and FISMA-related compliance activities Practical experience supporting security authorization or accreditation activities. Understanding of enterprise system and network architectures. Ability to document technical processes and communicate effectively with both technical and non-technical stakeholders. Active TS/SCI clearance; US Citizenship required; Preferred Qualifications: Experience with: VMware vSphere 7 administration Cisco network systems Dell server hardware and SAN storage management Automation and scripting for system tasks GRC tools such as RiskVision, Xacta, or JCAM Familiarity with the ATO lifecycle, including control implementation and evidence generation. Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.