IT Operations Manager ​/ Information Systems Security Manager with Security Clearance

Position Summary

Yorktown Systems Group (YSG) is seeking an experienced IT Operations Manager / Information Systems Security Manager (ISSM) to lead the day-to-day management of the company’s information technology operations and cybersecurity program. Reporting to the Director of Corporate Enterprise Assurance, this position is responsible for planning, implementing, securing, and maintaining YSG's enterprise technology environment in support of Department of Defense (DoD) customers and corporate operations.

The IT Operations Manager/ISSM oversees enterprise IT infrastructure, cloud services, cybersecurity compliance, end-user support, vendor relationships, technology projects, and the annual IT budget. Serving as the organization's Information Systems Security Manager (ISSM), this individual will ensure compliance with applicable cybersecurity requirements while delivering secure, reliable, and scalable technology solutions that enable business growth and operational excellence. This position is ideal for a hands-on technology leader who enjoys balancing strategic planning with day-to-day operational execution in a dynamic government contracting environment.

Yorktown Systems Group is a growing, employee-focused government contractor dedicated to delivering innovative solutions that support the Department of Defense and national security missions. Our culture values collaboration, accountability, continuous improvement, and exceptional customer service. As the IT Operations Manager/ISSM, you will play a critical role in protecting the company’s information assets while helping shape the future of YSG's technology environment.

You'll work closely with executive leadership to modernize IT infrastructure, strengthen cybersecurity, implement emerging technologies, and ensure compliance with evolving government requirements. This role offers the opportunity to make a meaningful impact on both corporate operations and mission success.

Lead the daily operation, administration, and maintenance of the company’s enterprise IT environment.

Supervise, mentor, and develop IT personnel while fostering a collaborative, service-oriented culture.

Manage enterprise infrastructure, including cloud services, servers, storage, networking, endpoint devices, collaboration platforms, and communications systems.

Ensure the availability, reliability, performance, and scalability of enterprise systems.

Oversee IT service delivery and end-user support to ensure timely resolution of technical issues.

Maintain hardware, software, licensing, and technology asset inventories throughout their lifecycle.

• Manage and continuously improve YSG's cybersecurity program.
• Maintain compliance with CMMC Level 2 and applicable Department of Defense cybersecurity requirements.
• Implement and maintain security controls aligned with NIST SP 800-171 and other applicable cybersecurity frameworks.
• Maintain System Security Plans (SSPs), Plans of Action & Milestones (POA&Ms), security policies, procedures, and supporting documentation.
• Conduct security risk assessments and coordinate vulnerability management activities.
• Lead cybersecurity incident response, investigations, corrective actions, and reporting.
• Manage user access, privileged accounts, authentication, and least-privilege enforcement.
• Coordinate security awareness training and promote cybersecurity best practices throughout the organization.
• Support internal audits, customer assessments, and cybersecurity compliance reviews.

• Manage and continuously improve:
  Microsoft 365 Microsoft Azure Microsoft Entra  Intune Windows Server Virtualization platforms Enterprise networking Endpoint management Identity and access management Backup and disaster recovery solutions Collaboration and communication platforms.
• Ensure systems remain secure, resilient, and aligned with business and contractual requirements.

• Collaborate with the Director of Corporate Enterprise Assurance and executive leadership to develop and implement the organization’s technology…