This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal/ Sr. Principal Electronics Engineer – Mission Processing based in United States. This role offers the opportunity to contribute to advanced mission-processing and electronics systems supporting complex aerospace and defense platforms. You will work across requirements, architectures, hardware and software integration, testing, and system certification. The position combines hands-on engineering with technical coordination across internal teams, suppliers, and strategic program partners. You will help shape mission-processing architectures involving computers, networks, communications, data storage, displays, and related technologies. The environment is highly collaborative, technically challenging, and focused on delivering reliable systems for mission-critical applications. You will also evaluate emerging technologies, conduct trade studies, and contribute to model-based and digital engineering practices. This is an on-site opportunity in Melbourne, Florida, with a 9/80 schedule that provides every other Friday off.