The Sr. Specialist, Information Security Systems Engineer is responsible for applying current systems security engineering methods, practices and technologies to the architecture, design, development, evaluation and integration of systems and networks to maintain system security. The ISSE will work closely with Government customers to ensure that the security protection needs, concerns and requirements are defined and implemented with appropriate fidelity and rigor, early and in a sustainable manner throughout the life cycle of system that will allow for the security assessment and authorization of the system of interest.