Systems Engineer SME (TS/SCI with Poly Required)

Systems Engineer SME (TS/SCI with Poly Required) Job Category: IT Infrastructure and Operations Requisition Number: SYSTE002097 Posted: May 7, 2026 Employment Type: Full-Time Work Location: On-site Salary Range: $164,382.40 USD to $274,518.40 USD Locations Herndon Herndon, VA, USA Description GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leveraging the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry. As a SME Systems Engineer, a typical day will include the following duties and skills: Required Skills Demonstrated experience with in-depth knowledge of customer crypto devices such as the E-100, FLEX, Micro, Nano, TL-10G, TL-1g, and next generation crypto devices, including their configuration, operation, and maintenance. Demonstrated experience designing, implementing, and troubleshooting complex cryptographic systems. Demonstrated experience with technical knowledge of cryptographic principles, protocols, and technologies, including those related to customer crypto devices. Demonstrated experience troubleshooting complex technical issues related to customer crypto devices and developing effective solutions. Demonstrated experience with cryptographic protocols and standards, such as those related to encryption, decryption, and key management. Demonstrated experience providing technical guidance and support to stakeholders, including written training documentation. Demonstrated experience working collaboratively with cross‑functional teams, including engineers, technicians, and other stakeholders, to achieve project goals and objectives. Demonstrated experience with GEM crypto manager(s) software. Demonstrated experience providing technical guidance and support to stakeholders, including actively training personnel. Desired Skills Demonstrated experience with cloud computing platforms such as AWS, Azure, and Google Cloud. Demonstrated experience and knowledge of DevOps practices and tools. Demonstrated experience with technical knowledge of cryptographic principles, protocols, and technologies, including those related to customer crypto devices. Demonstrated experience and familiarity with customer networks and devices, including both new and legacy systems, to ensure seamless integration and support. Demonstrated experience with troubleshooting and problem‑solving skills to troubleshoot complex technical issues related to customer crypto devices and develop effective solutions. Demonstrated experience with agile project management methodologies to work effectively in a team environment. Demonstrated experience with effective communication skills, both written and verbal, to effectively convey complex technical information to various stakeholders, including technical and non‑technical personnel. Demonstrated experience and ability to work in a matrix environment. This includes being able to navigate multiple stakeholders, priorities, and timelines. A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Qualifications Education Preferred: Bachelor of Science or better in Engineering or related field. Experience 15 years: Demonstrated related work experience. Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor. #J-18808-Ljbffr GCI