Vantor is seeking a Sr. Payload Systems Engineer to join our Engineering & Architecture team in the Aerospace & Defense sector. In this role, you will lead end-to-end payload system design, integration, and performance analysis for advanced mission solutions. Responsibilities include requirements development, systems modeling, trade studies, and collaborating with cross-functional teams to ensure mission readiness and compliance. You will mentor junior engineers, drive technical innovation, and support proposals. Vantor offers a culture of innovation, diversity, and continuous learning, with opportunities to influence next-generation payload architectures.