How to Interview an Architect: Key Question Types and Evaluation Strategies

When interviewing an architect, the questions you ask reveal which qualities the team leader values most in the candidate.

The author likens technology practice to martial arts, distinguishing between "techniques" (specific methods) and "principles" (the underlying mindset). Over twelve years of coding, the focus shifts from remembering techniques to mastering problem‑solving principles, which is what should be evaluated.

Question Types:

1. Technical‑detail questions about the current technology domain.

2. Algorithm and data‑structure questions.

3. Design‑thinking questions.

Technical‑detail questions help gauge how well an architect understands the nuances of a specific field, which influences design decisions. For example, asking how to clear all subviews of a view can reveal whether the candidate knows methods like makeObjectsPerformSelector or prefers manual loops, but the real purpose is to see if they understand the underlying APIs rather than just memorizing them.

Effective technical questions should probe deeper understanding rather than simple "know/don't know" facts, distinguishing candidates who grasp concepts from those who merely recall syntax.

Algorithm and data‑structure questions are often reserved for junior or entry‑level interviews, but they remain important for architects because choosing the right data structure or algorithm directly impacts the elegance and reliability of an architecture. The focus should be on how the candidate selects appropriate structures and balances time‑space trade‑offs, not just on solving a white‑board puzzle.

Design‑thinking questions explore how a candidate would approach real‑world architectural problems, such as designing a network layer for an app, planning SQLite migration strategies, or applying decoupling techniques. The interview should assess the candidate’s thought process, long‑term planning, and ability to produce clean, maintainable APIs.

The article emphasizes that a good architect is distinguished by deep technical understanding and the ability to design robust, extensible solutions, whereas a senior engineer may excel at implementation without the same level of strategic insight.

In summary, interviewing architects requires thoughtful, pragmatic questions that evaluate both knowledge depth and conceptual thinking, enabling interviewers to identify candidates who can truly drive architectural excellence.