As one of the many mathematicians working at JIGSO, we specialize in providing solid, data-driven sentiment analysis tailored for airline crew operations. By applying mathematical rigor to structured scores and open feedback through JIGSO for Airline Crew (JfAC), we convert qualitative crew responses into actionable intelligence. Working alongside schedulers, the tool pinpoints exact roster friction points and highlights true scheduling preferences. This data-backed approach bridges the gap between complex schedule planning and real human sentiment, empowering airlines to continuously improve roster quality, elevate crew engagement, and boost retention.