*E01 Cyber Security Engineer IV

Start Date: Immediate JHNA, CTSi, and EXPANSIA have come together to form a Defense Technology platform named Aether Aerospace focused on delivering high-impact technologies, technology-enabled services and advanced manufacturing solutions to the U.S. Department of Defense and related national security customers. Backed by Falfurrias Management Partners, the platform brings together deep domain expertise across Army, Navy, and Air Force and Space Force programs, digital engineering, systems integration, and specialized manufacturing capabilities. The combined organization operates as a multi-entity aerospace and defense technology and tech-enabled services and manufacturing enterprise positioned for scalable growth, operational excellence, and long-term value creation. OVERVIEW Full-time/Permanent Employee Location: Remote As a Cyber Security Engineer IV, you will be an emerging authority in Microsoft Defender security technologies, applying deep technical expertise to design, implement, and optimize advanced endpoint and cloud security solutions. You will lead the deployment and integration of Microsoft Defender for Endpoint, Cloud, and Servers to protect enterprise information systems, network infrastructure, and critical data assets while ensuring compliance with industry and regulatory standards. This role requires significant autonomy in defining security objectives, engineering scalable security architectures, and leading incident response and threat mitigation efforts. You will collaborate closely with IT leadership and stakeholders to conduct security assessments, strengthen access controls, and continuously enhance the organization’s security posture through Microsoft’s integrated security ecosystem. The proposed salary range for this position is $128,899 - $133,000. There are a host of factors that can influence final salary including, but not limited to, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, geographic location, education, and certifications. Our employees value the flexibility EXPANSIA allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our unique mix of benefits options is designed to support and protect employees and their families. Employment benefits include health and wellness programs, income protection, paid leave and retirement and savings.