  This paper explores the intricate challenge of understanding and measuring
software engineer behavior. More specifically, we revolve around a central
question: How can we enhance our understanding of software engineer behavior?
Grounded in the nuanced complexities addressed within Behavioral Software
Engineering (BSE), we advocate for holistic methods that integrate quantitative
measures, such as psychometric instruments, and qualitative data from diverse
sources. Furthermore, we delve into the relevance of this challenge within
national and international contexts, highlighting the increasing interest in
understanding software engineer behavior. Real-world initiatives and academic
endeavors are also examined to underscore the potential for advancing this
research agenda and, consequently, refining software engineering practices
based on behavioral aspects. Lastly, this paper addresses different ways to
evaluate the progress of this challenge by leveraging methodological skills
derived from behavioral sciences, ultimately contributing to a deeper
understanding of software engineer behavior and software engineering practices.
