Given only a newly encountered drone/controller pair and complex-IQ recordings, this engineer will independently frame the problem, generate and rank hypotheses, design the experiment campaign, characterize the waveform, develop the algorithms, implement them in production C++, and validate performance against real-world RF data - without needing the approach handed to them. Our line-of-bearing capability needs a strong technical owner, and this engineer will drive its improvement: antenna-array signal processing, bearing estimation, array calibration, and the practical realities of DF performance in the field - mutual coupling, multipath, platform effects, and coherent multichannel capture.