Hiring: Principal Radio Frequency Engineer Company: Research Innovations Incorporated Location: Aberdeen Proving Ground, MD Job Posted Time: 2026-09-10 13:39:50 Employment Type: Full-time About the job Qualifications: •: Top Secret / With SCI eligibility Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!