Each business has its own preferred stack and it is beneficial for candidates to distinguish on their CVs the depth of experience they have with each tool, framework or language. Distinguishing what role you played in a team is important when talking about software engineering or development as well as laying out the remit of a role, the challenge and what you achieved, including the impact on the business. Not everyone reading your CV may be technical, in larger businesses internal talent teams and HR will often shortlist CVs so make sure you talk about achievements and project goals in addition to mentioning the architecture, tools and libraries used.