Aggregate of 5 years software development experience in one or more of the following areas: Developing 3GPP network functions, network interfaces, and/or service-based interfaces, such as: User Plane Function (UPF), Access and Mobility Management Function (AMF), and/or Session Management Function (SMF), N4 and/or N11 network interfaces, and/or. AST’s work environment is passionate, highly collaborative and provides engineers with the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation’s finest service members all while embracing integrity, innovation, and work-life balance.