In the ever-evolving world of software development, one thing remains constant: the need for effective communication and collaboration. Having spent years as both a Software Engineer and an Engineering Manager, I’ve come to understand that assumptions can be a double-edged sword in this field. While assumptions can sometimes save time, they often lead to misunderstandings, bottlenecks, and, ultimately, suboptimal software. In this article, we’ll explore two common challenges stemming from the tendency of Engineers to work in isolation and make assumptions, and we’ll provide practical solutions to address them. These challenges not only impact the quality of the code but also the overall efficiency and harmony within development teams.