Initially, the requirement was to only focus on the UI of the product. However, I knew that as a UX designer, my job is to advocate for the users and to coordinate the whole balanced team to come up with the best product designs.
After consulting my design manager and other senior designers for advice, I set up a meeting to explain the user-centered design process I hoped to follow. I proposed a timeline to make sure that the product can still be built within the time constraints, and explained why adding activities like interviews, brainstorming sessions, and user feedback would help the team fail fast and eventually build a better product that people would love using.
From this experience, I learned about how to advocate for design when necessary. It is important not to blindly stick to a "process", but to understand why different design activities help us build better products, and to convey the value of those activities to stakeholders and other team members.