Principal Radio Frequency Engineer (EWS111)

Research Innovations•Aberdeen Proving Ground, MD

1d•Onsite

About The Position

Research Innovations, Inc. (RII) is breaking through the big, slow status quo with transformative technology that fundamentally improves the world. We build advanced software solutions for government and military missions, applying agile development and user-centered design to solve complex, mission-critical problems. We are seeking a highly driven Principal RF Engineer to join our EW/SIGINT team supporting Defense and Intelligence Community missions. In this role, you will solve complex, mission-critical challenges and develop advanced RF collection capabilities that enable real-time situational awareness in dynamic operational environments. You will support and sustain deployed operational systems, ensuring performance, reliability, and mission effectiveness in real-world conditions, while contributing to systems that discover, analyze, and exploit signals across full-spectrum operationsâdelivering precise, actionable intelligence when it matters most.

Requirements

6+ years of hands-on experience designing, building, and testing RF signal collection systems
3+ years of experience in SIGINT or related fields (DoD, IC, or defense contractors)
Strong understanding of RF fundamentals, including signal propagation, antenna theory, and link budget analysis
Experience working in Agile environments, including use of tools such as Jira and Confluence
Proficiency with Microsoft Office tools, including Project and Visio
Demonstrated ability to build strong relationships with technical teams and mission stakeholders
Proven track record of delivering solutions in fast-paced, mission-driven environments

Nice To Haves

Experience with modeling and simulation tools such as MATLAB or STK
Familiarity with requirements management tools such as DOORS Next Gen
Experience supporting rapid prototyping or Quick Reaction Capability (QRC) programs
Prior work in field testing or deployed RF/SIGINT systems

Responsibilities

Support Army DEVCOM Quick Reaction Capability (QRC) initiatives onsite at APG
Design and optimize RF systems, including antenna selection, placement, and integration
Perform link budget analysis and signal propagation modeling to ensure system performance across operational environments
Develop and prototype solutions in both Systems Integration Laboratory (SIL) and field environments
Translate emerging mission requirements into technical concepts and rapid implementation plans
Design, develop, and document RF components, subassemblies, and system-level architectures
Review engineering designs, drawings, and technical documentation; provide actionable recommendations
Resolve engineering change requests from customers, manufacturers, and suppliers
Conduct reliability analysis and safety engineering assessments for RF systems
Collaborate across multidisciplinary teams to deliver mission-ready capabilities under tight timelines