System Engineer - Senior with Security Clearance

Full Visibility LLC | Full time System Engineer - Senior Winchester, United States | Posted on 07/24/2026 Job Information * Industry IT Services * Date Opened 07/24/2026 * Job Type Full time * City Winchester * State/Province Winchester, VA * Country United States * Zip/Postal Code 20001 About Us Full Visibility LLC is a federally certified Small Business that delivers innovative technical solutions to address the nation’s most critical and sensitive missions. Founded in 2006, our extensive technical capabilities and expertise support federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering. With offices in the National Capital Region, Quantico, VA, and Huntsville, AL -- we deliver critical technical solutions to various federal government agencies and departments.  Job Description Full Visibility is seeking a System Engineer Senior-level located in Winchester, VA and is a Hybrid Role. Candidate must possess an active Top Secret/SCI Eligibility Clearance.  Individuals selected for this position will be subject to Counterintelligence (CI) Polygraph examinations based on their assignment after their start date and must be able to obtain and maintain any required CI Polygraph eligibility throughout the duration of their employment.  The System Engineer Senior will supervise, coordinate and/or perform additions and changes to network hardware and operating systems, and attached devices, including investigation, analysis, recommendation, configuration, installation, and testing of new network hardware and software. Provide direct support in the day-to-day operations on network hardware and operating systems including the evaluation of system utilization, monitoring response time, and primary support for detection and correction of operational problems. Troubleshoot at the physical level of the network, working with network measurement hardware and software, as well as physical checking and testing of hardware devices at the logical level working with communication protocols. Participate in planning design, technical review and implementation for new network infrastructure hardware and network operating systems for voice and data communication networks. Perform systems management and integration functions. Exhibiting proficiency with virtualization technologies and network administration. Maintain network infrastructure standards including network communication protocols such as TCP/IP. Provide technical consultation, training, and support to IT staff as designated by the government. Diagnose and resolve complex communication problems. Perform systems management and integration functions. Responsible for design, deployment, evaluating, testing, certification, patching, addressing interoperability issues, not only of the base storage & backup system, but for all features, components, and application dependencies. Ensures systems are current with approved patches and assist with certification and system accreditation tasks, compose SOPs, and Quick Reference guides for users. Requirements * Active TS/SCI Eligibility  * Minimum of eight (8) years of System Engineer experience. * Configure, install, maintain, and troubleshoot network hardware, operating systems, and connected devices.  * Monitor system and network performance and resolve complex technical issues. * Support network infrastructure design, deployment, integration, and administration.  * Manage virtualization, storage, backups, patching, testing, and system accreditation activities.  * Develop technical documentation and provide technical support and training. * Current SAFe Software Engineer (ASE) Certification. This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: local market conditions, and candidate qualifications, such as skills, education, and experience. A reasonable salary range for this position is $115-165kk.  
 
#CJ Benefits About Full Visibility  Full Visibility LLC is a federally certified Small Business that delivers innovative technical solutions to address the nation’s most critical and sensitive missions. Founded in 2006, our extensive technical capabilities and expertise support federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering.  Our technologists are recognized as industry leaders with demonstrated expertise in innovating and transforming our client environments in support of national security and law enforcement. Headquartered in Tysons, VA – with locations in Chantilly, VA, Quantico, VA, and Huntsville, AL – we have specialized experience supporting sensitive missions and an understanding of the niche skillsets required to overcome challenges in these environments. Our clients benefit from an enthusiastic and reliable team of talent with high employee morale and retention based on our FULL EMPLOYEE approach where each employee’s professional and personal well-being is considered. Our focus on employee development, success, and morale is demonstrated by our consecutive top ranking as the Best Place to Work by the Washington Business Journal as a thirteen-time honoree. Full Visibility has also been included on the Inc. 5000 Fastest-Growing Private Companies in America list eight times since 2014.  Full Visibility currently has over 20 active contracts with 100 billable staff supporting 21 clients in the Intelligence and Law Enforcement communities. As part of our commitment to partnerships, we are teammates with 13 prime contract holders. Additionally, Full Visibility holds contracts on several vehicles, such as GSA Multiple Award Schedule (MAS), DISA SETI, DIA SITE III, HCaTS, as well as several classified vehicles. Our portfolio includes experience serving the Department of Defense, Department of Homeland Security, Department of Justice, and Department of Veterans Affairs, as well as commercial clients.  Contact  for any questions or concerns related to this position or our company.  To review our company benefit offerings please visit https://www.fullvisibility.com/benefits.  Attachments * * Benefits_2026.pdf * View * Download Full Visibility LLC is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran status, disability or genetic information or any other reason prohibited by law in employment.