Required Skills:- Strong technical background in systems engineering, including system thinking, architecture development, functional decomposition, and allocation of requirements- Experience developing and managing performance, functional, and interface requirements using system-modeling tools- Ability to think critically and capture concepts in technical presentations and discussions- Experience developing and coordinating changes to system specifications, including functional, interface, and performance requirements- Ability to develop and coordinate technical products, including technical briefings and Change Notices (CNs)- Strong written and verbal communication skills- Strong communication and presentation skills for conveying technical concepts and approaches to customers and stakeholders- Ability to work independently and within a small team environment- Ability to work in close coordination with the customerRequired Qualifications:- Bachelor's, Master's, or PhD in Engineering, Mathematics, Physics, or a related technical discipline- Experience with systems engineering and system requirements development- Strong prior experience with MSOSA (Cameo) and DOORS- Experience with MDA mission areas, including areas such as Aegis Weapon Systems, Ground-based Midcourse Defense (GMD), Glide Phase Intercept (GPI), Hypersonic and Ballistic Tracking Space Sensor (HBTSS), Fire Control, C2BMC, MDS sensors (EO/IR/RF), Integrated Air and Missile Defense Battle Command System (IBCS), Space-Based Interceptor (SBI), Next-Generation Interceptor (NGI), Overhead Persistent Infrared (OPIR) systems, Cruise Missile Defense, or Air Defense- Active Secret-level DoD security clearancePreferred Qualifications:- Experience modeling or simulating missile defense applications or similar domains, including air combat, air defense, intercept of ballistic targets, intercept of non-ballistic targets, space vehicles, or sub-orbital mechanics- Knowledge of ballistic and advanced threat systems, including aero-maneuvering, hypersonic, hyper-glide, and countermeasure systems- Modeling and analysis experience with missile defense system elements and technologies- Experience with systems such as Aegis Weapons Systems, Ground-based Midcourse Defense (GMD), Glide Phase Intercept (GPI), Hypersonic and Ballistic Tracking Space Sensor (HBTSS), Fire Control, C2BMC, MDS sensors (EO/IR/RF), kill vehicles, interceptors, countermeasures, Air Defense systems, Cloud Based Command and Control (CBC2), and Integrated Air and Missile Defense Battle Command System (IBCS)- Systems engineering experience with large, complex systemsAbout DESEFor the past 43 years, DESE has provided industry-leading technical and engineering solutions in the fields of Defense, Energy, Space, and Environment. DESE Research, Inc. seeks a Systems Engineer – Responsible Systems Engineer (Mid-Level) to join an exciting team supporting the Missile Defense Agency (MDA) in System Design and Requirements activities for the Missile Defense System (MDS).This position is on-site in Huntsville, AL.The candidate will join the System Engineering & Integration Team (SE&IT) and serve as a Responsible Systems Engineer (RSE), leading cross-functional systems engineering teams in the development of system-level technical solutions for MDA.