My research focuses on the formation of massive stars, combining radio and infrared tracers to probe their environments and early evolutionary processes. A key aspect is the study of 6.7 GHz Class II methanol masers as probes of high-mass young stellar objects (HMYSOs), with emphasis on episodic accretion events traced through maser flares and complemented by near-infrared imaging and spectroscopy that reveal accretion-driven outbursts and their impact on surrounding cavities. I also investigate the occurrence and statistical properties of low-luminosity masers, infrared bubbles as tracers of stellar feedback, and the radio properties of ~1600 YSOs in the VLA Orion Large Survey (VOLS), using stacking techniques to constrain the faint end of the YSO radio population. Together, these studies aim to link maser activity, feedback, and faint radio emission to the broader picture of high-mass star formation and disk evolution.