Senior Systems Administrator

Helping our clients achieve their goals starts with attracting and obtaining top talent. We look for highly innovative and bright individuals; give them the tools they need, then give them the freedom to do what they do best. We empower our employees to make the best of their opportunities in a rewarding and challenging environment.

We have a passion for excellence. Our employees thrive on making a difference and generating results for our clients in a flexible environment that offers support and camaraderie. No matter where you are located throughout the globe, DPRA offers vast learning opportunities and a flexible work style to help our staff manage responsibilities and add balance to their lives.

Along with a flexible workplace, DPRA offers a Total Rewards program that provides its employees with not only a competitive salary, but also covers a wide variety of benefits and programs! If you are looking for a challenging position in an innovative company, then this is the position for you.

Currently, DPRA is searching for a Senior Systems Administrator in our Knoxville, Tennessee office location. This full-time position will oversee the administration, maintenance and security of a distributed IT infrastructure supporting multiple Microsoft 365 tenants and a geographically dispersed workforce.  This role is reponsible for managing both on-site and remote environments across multiple locations and time zones, ensuring operational continuity, regulatory compliance, and enterprise-level security standards.  The ideal candidate is a highly analytical, service-oriented IT professional with deep Microsoft 365 expertise and experience operating within regulated environments such as CMMC and NIST 800-171.      

• Microsoft 365 Administration
  • Administer multiple Microsoft 365 tenants, including Exchange Online, SharePoint Online, Microsoft Teams, Entra ID (Azure AD), Conditional Access Policies; and Multi-Factor Authentication (MFA)
  • Manage identity governance, security policies, and tenant configurations
  • Perform log reviews and monitor system activity to ensure compliance and security integrity
• Infrastructure & Systems Management
  • Administer physical and virtual servers across distributed environments
  • Manage network infrastructure including firewalls, switches, and remote office connectivity
  • Oversee patch management, vulnerability remediation, and endpoint protection
  • Provide Tier 2/3 escalation support
  • Support and manage Remote Monitoring & Management (RMM) tools
  • Administer VoIP systems
• ​​​​​​​Security & Compliance
  • ​​​​​​​Ensure compliance with CMMC Level 1 (or higher), NIST 800-171, and NIST 800-53 (as applicable)
  • Conduct internal system compliance reviews and assessments
  • Develop and maintain technical documentation and Standard Operating Procedures (SOPs)
  • Participate in IT Change Boards and change management processes
  • Support audit readiness initiatives
• ​​​​​​​​​​​​​​​​​​​​​Physical Security Systems
  • ​​​​​​​Oversee IP-based camera systems
  • Administer badge readers and access-control systems
  • Ensure physical security systems integration with cybersecurity policies
• ​​​​​​​​​​​​​​​​​​​​​Collaboration & Strategic Support
  • ​​​​​​​Work closely with development teams and systems engineers to support development, testing and deployment
  • Participate in disaster recovery planning and business continuity strategies
  • Assist with vendor management and contract negotiations​​​​​​

Required Qualifications:

• U.S. citizenship required, with the ability to obtain and maintain a DoW security clearance (active clearance preferred).
• Bachelor’s degree in IT Security, Computer Science, Information Systems Technology, or a related discipline, or equivalent professional experience. 
• Minimum of seven years of IT Administration experience, including at least three years in a regulated environment (CMMC level 1 or higher, NIST 800-171, NIST 800-53) .
• Exceptional written and verbal communications skills. 
• Strong service orientation and the ability to work independently.
• Advanced analytical and problem-solving abilities. 
• Excellent organizational, time management and customer service skills.
• Experience in participating in IT Change Boards and conducting system compliance assessments. 
• Experience drafting SOPs to support IT consistency and audit readiness.
• Networking – 3+ years of experience with firewalls, switches, and physical security hardware.
• Prior experience with vendor management, contract negotiations, disaster recovery planning, and business continuity strategies.   
• At least three years of Microsoft 365 Administration experience.

• CompTIA Security + (Active or ability to obtain)
• Microsoft 365 Certified Administrator
• CCNA Certification