ENSCO, Inc. is seeking an Engineer (Level 4) to provide mid-level security engineering support to the Federal Aviation Administration (FAA) Air Traffic Organization (ATO) NAS Enterprise Services Group (AJW-17). This position will perform complex engineering tasks to develop, integrate, and maintain systems and networks that support FAA communications and safeguard the operational integrity of the National Airspace System (NAS). The selected candidate will conduct requirements analysis, assist with system design, and participate in integration activities across the system development lifecycle. Responsibilities include contributing to performance assessments, preparing and reviewing engineering documentation, and ensuring work aligns with FAA standards and cybersecurity policies. The role will also help implement configuration management processes, support system testing and evaluation, and provide technical input during technical interchange meetings. Additional duties include working with senior engineers to troubleshoot technical issues, contributing to the development of transition and implementation plans for new or upgraded systems, and collaborating with cross-functional teams to incorporate emerging technologies into NAS operations.