Senior Systems Engineer (TS/SCI)

Company: Summit 7 Systems
Location: Gainesville
Posted on: April 1, 2026

Job Description:

Position Title: Senior Systems Engineer (TS/SCI ) Position Type: Full-Time / Exempt Clearance: Top Secret/SCI with CI Polygraph Location: Gainesville, VA (20155) SOC Code: 15-1299.08 Salary*: $150,000-190,000 Job Overview We are seeking an experienced Senior Systems Engineer to join our Cleared IT Support Team. This role is pivotal in managing and optimizing advanced IT infrastructure while leading technical initiatives to support organizational goals. The Senior Systems Engineer will collaborate with network engineers, security teams, and IT specialists to ensure the secure and efficient operation of multi-user computer networks, including WANs and standalone systems. The ideal candidate will guide the team in addressing technical challenges, implementing cutting-edge solutions, and driving process improvements. This position involves overseeing server infrastructure, managing complex networking environments, optimizing system performance, and ensuring compliance with security standards. While interaction with end users may be required, this role emphasizes infrastructure-level expertise and leadership. Key Responsibilities Lead the engineering and optimization of Windows Server and Active Directory environments, including DNS, DHCP, and group policy configuration. Assist with leading Linux (RedHat or other) engineering/administration. Oversee and maintain enterprise virtualization environments (e.g., VMware, Hyper-V). Manage advanced networking configurations, including LAN/WAN, VLANs, and troubleshooting network connectivity issues. Implement, monitor, and remediate vulnerabilities using tools like ACAS, EVSS (Nessus), and HBSS. Manage enterprise backup and disaster recovery strategies to ensure business continuity. Configure and maintain Microsoft Exchange Server and related services. Develop and enforce security best practices, including compliance with IAVM/STIG requirements in collaboration with ISSOs. Automate routine tasks using PowerShell and other scripting languages to improve efficiency. Lead technical projects, such as system migrations, upgrades, and deployments, ensuring minimal disruption and optimal performance. Provide mentorship and guidance to junior systems Engineers and other IT staff. Stay current with industry trends, emerging technologies, and best practices to recommend and implement innovative solutions. Additional responsibilities include, but are not limited to: Fast turnaround of escalated requests Ability to work in a team and communicate effectively Responsible for entering all time and expenses as they occur Continuous education, expansion, and refinement of technical knowledge, and credibility through industry standard certifications Interpret and discuss information with others and regularly provide and recommend actions involving complex issues Demonstrate professional attitude with clients and team members and enhance relationships. Other duties as assigned Requirements for Position Associate or bachelor's degree in computer science or related degree OR at least five (5) years of IT or related experience. Special preference for senior systems engineering support. Top Secret/SCI with CI Polygraph CompTIA Security Certification Microsoft Windows Server 2016 Engineering/Administration Experience Microsoft Active Directory Engineering/Administration Experience Microsoft Windows 10 Engineering/Administration Experience Basic Linux (RedHat or other) Engineering/Administration Experience Strong troubleshooting skills for a wide range of difficult information technology issues Excellent customer service skills Ability to work independently and a strong desire for personal and professional development Ability to identify and evaluate trends in industry best practices and policies Hands on experience with Network troubleshooting, Microsoft Domain Services (DNS, DHCP, etc.) troubleshooting, Microsoft Active Directory troubleshooting Backup and Storage Engineering Preferred Education, Experience, & Skills Experience with VMWare Experience with Microsoft Exchange Experience with Host-based Security Services (HBSS) Experience with Assured Compliance Assessment Solution (ACAS) Advanced experience with Linux (Red Hat or others) Experience with Storage Technologies Experience with LAN/WAN, switching technologies Experience working with Intelligence Community accredited systems Experience working with DCSA/DoD accredited systems Work Conditions Work is typically performed in an office environment. Must be able to remain in a stationary position for extended periods of time. The person in this position may need to occasionally move about inside the office to access file cabinets, office machinery, etc. Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer. May occasionally need to position self to maintain computers, including under the desks and in the server closet. The person in this position frequently communicates with employees and clients. Must be able to exchange accurate information in these solutions. Summit 7 Systems, LLC is an equal opportunity/ affirmative action employer and an alcohol and drug free workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. Summit 7 Systems requires background investigations. Any offer of employment is contingent upon the results of a reference/background check. We are a drug and alcohol-free workplace and require pre-employment drug sc reening.

Keywords: Summit 7 Systems, Columbia , Senior Systems Engineer (TS/SCI), IT / Software / Systems , Gainesville, Maryland