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 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.