ECS is seeking a Security Engineer to work Remotely. The Security Engineer will play a critical role in supporting the modernization of federal information technology systems while ensuring the highest standards of cybersecurity and compliance. This position requires an experienced professional who can navigate complex federal security requirements, implement robust security controls, and support the transformation of legacy systems to modern, cloud-enabled architectures. The Security Engineer will work closely with cross-functional teams including system architects, developers, operations staff, and federal stakeholders to embed security throughout the modernization lifecycle. This role demands expertise in both traditional federal security frameworks and emerging technologies, with a focus on enabling secure digital transformation while maintaining compliance with federal regulations and standards. The successful candidate will contribute to reducing cybersecurity risks while accelerating the delivery of modernized IT capabilities to support critical government missions.