From Amazon, Microsoft, Meta, Twitter, and other large tech companies, distribution of employees across various roles is depicted in the Sankey diagram. Amazon and Microsoft have a concentration of employees in Software Engineering and HR & Talent Sourcing due to their bulk operations. On the contrary, Meta and Twitter are more evenly populated across roles such as Program Management, Data Analysis, and Marketing. The diagram demonstrates the predominance of technical roles across the companies; however, it also reflects the prominence of non-technical functions like Customer Success and Communications.