Emerald Technical Solutions is seeking a highly skilled Senior Cyber Security Engineer to provide subject matter expertise (SME) in cybersecurity for the Joint Technical Coordinating Group for Munitions Effectiveness (JTCG/ME) Program Office at Aberdeen Proving Ground (APG), MD. The Senior Engineer will serve in a dual ISSM/ISSO capacity, supporting the secure development, deployment, and sustainment of JTCG/ME products. This role requires advanced knowledge of DoD Risk Management Framework (RMF), DevSecOps practices, and cybersecurity policy execution in direct support of Army missions.