Senior Principal Systems Engineer Subject Matter Expert; SME Security Clearance

Position: Senior Principal Systems Engineer Subject Matter Expert (SME) with Security Clearance
Position Description & Qualifications Serco-North America is seeking a Senior Principal Systems Engineer Subject Matter Expert (SME) with extensive experience in SATCOM enterprise leadership, systems engineering, and DoD portfolio integration to support the evolving needs of the Department of Defense (DoD) Wideband MILSATCOM enterprise. This role will be responsible for assisting in strategic technical guidance and analytical expertise in the acquisition, modernization, and lifecycle management of a diverse portfolio of Wideband ground systems and facilities, ensuring global mission readiness and operational excellence.

Daily work is performed as an integrated member of the Space and Ground Systems (SGS) portfolio team, across Wideband SATCOM ground systems including CNPS, WSTARS, WRMS, PCMS and others to enable sustained delivery of critical SATCOM capabilities to DoD stakeholders. In this role, you will:
* Lead high‑visibility and mission‑critical aspects of SGS client programs, applying SATCOM and Wideband enterprise experience to guide decision‑making and program execution.
* Provide strategic advice, technical assessments, and portfolio‑level guidance to program leads and project teams, leveraging deep knowledge of the Wideband SATCOM architecture, enterprise integration, and modernization planning.
* Develop innovative, data‑driven recommendations to optimize portfolio management practices, enterprise sustainment, and system‑of‑systems integration while ensuring program objectives are aligned with DoD governance and long‑term capability roadmaps.
* Support enterprise‑wide improvement initiatives across the portfolio.
* Supervise, plan, and lead analytical studies, technical reviews, and data‑driven surveys to support investment decisions, acquisition planning, and capability prioritization.
* Serve as a senior liaison across stakeholders within the Wideband and other SATCOM enterprises. To be successful in this role, you will have:
* Active DoD Top Secret clearance.
* A Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM).
* A minimum of 15+ years of related experience, including demonstrated expertise in SATCOM operations, wideband mission systems, enterprise integration, and technical program leadership.
* Proven experience in strategy formulation, execution oversight, and DoD resource planning, including alignment of requirements, budgets, and acquisition activities.
* Expert understanding of DoD policies, procedures, and decision‑making frameworks, with the ability to develop pragmatic, innovative solutions.
* Demonstrated ability to translate complex operational, technical, and organizational factors into actionable recommendations for enterprise‑level decision‑making.
* Ability to travel 25%. Additional desired experience and skills:
* Master's Degree in Science, Technology, Engineering, or Mathematics (STEM) discipline from an accredited university.
* Extensive knowledge in the Wideband MILSATCOM Enterprise.
* Experience with DoD acquisitions processes.
* Experience with DoD SATCOM acquisition, prioritization, and spectrum management processes.
* Experience with SATCOM Planning and Link Budget Analysis.
* Experience with ITU guidelines.
* Experience with in OSD, Joint Staff, Service Staff, or senior headquarters environments, with a history of cross-agency SATCOM coordination, multinational engagement, and enterprise modernization.
* Deep knowledge of DoD organizational roles, operational structures, and governance frameworks. Company Overview Serco Inc. (Serco) is the Americas division of Serco Group, plc. In North America, Serco's 9,000+ employees strive to make an impact every day across 100+ sites in the areas of Defense, Citizen Services, and Transportation. We help our clients deliver vital services more efficiently while increasing the satisfaction of their end customers.

Serco serves every branch of the U.S. military, numerous U.S. Federal civilian agencies, the Intelligence Community, the Canadian government, state, provincial and local governments, and commercial clients. While your place may look a little different depending on your role, we…