How do you make architectural decisions in a full-stack project?

Short answer: I start by aligning with business goals—whether it's scalability, speed to market, or maintainability.

Explain a bit more

Then, I evaluate the tech stack, team skillsets, and existing infrastructure. For example, in one project, I chose a microservices-based backend using .NET Core with a React frontend. We used API gateways to separate concerns and ensure scalability. I involve senior devs in early discussions, create a proof of concept if needed, and always document the rationale for future reference.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.