Telesat is seeking a highly experienced Senior UT System Engineering Specialist to provide technical leadership for User Terminal systems engineering activities supporting secure communications programs and advanced connectivity applications. This senior individual-contributor role will guide operational concept development, system requirements, User Terminal architecture, and verification strategy for demanding government, enterprise, and partner use cases. The successful candidate will work across internal engineering teams, customers, suppliers, and partners to translate operational needs into practical terminal solutions for fixed, mobile, airborne, maritime, portable, and autonomous platform applications.