Job Description Insight Global is seeking an experienced Principal Systems Engineer to support a DoD program at Langley AFB. This role is critical to advancing the modernization, integration, and sustainment of customer IT and network infrastructure in support of C4ISR mission objectives. The ideal candidate brings deep systems engineering expertise, a strong understanding of Air Force C4ISR enterprise systems. You’ll serve as a technical advisor, driving architecture decisions and guiding system modernization efforts across the full lifecycle. We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/. Skills and Requirements TS/SCI 8 Years of System Engineering Experience supporting AF C4ISR enterprise systems Bachelors Degree in Engineering or IT (additional years of exp can substitute) Network engineering fundamentals (OSI model, protocols, data rates, circuit ordering) Open Architecture migration strategies