Question 1

Explain a recent project you built from scratch. What technical decisions did you make?

Accepted Answer

Walk through your architecture choices, tech stack selection, and trade-offs you considered.

Question 2

Walk us through how you would design a scalable system for Sanctuary Computer.

Accepted Answer

Start with requirements, then discuss high-level architecture, data flow, and trade-offs. Mention specific technologies you'd choose and why.

Question 3

Describe a time you had to optimize a slow feature or query.

Accepted Answer

Walk through your profiling process, the bottleneck you found, and the improvement you achieved with numbers.

Question 4

Tell me about a time you had to learn a new technology quickly to deliver a project.

Accepted Answer

Emphasize your learning process, resources you used, and how you applied the new knowledge effectively.

Question 5

How do you approach system design for complex, large-scale applications?

Accepted Answer

Discuss your design process, trade-offs you consider, and how you communicate decisions to the team.

Question 6

Describe your experience leading technical initiatives across teams.

Accepted Answer

Share examples of driving alignment, managing dependencies, and delivering results.

Question 7

What are the pros and cons of GraphQL vs REST?

Accepted Answer

Discuss over-fetching, under-fetching, schema definition, N+1 problems, and caching challenges.

Question 8

How do you optimize slow database queries?

Accepted Answer

Discuss query plans, indexing strategies, denormalization, and caching approaches.

Question 9

Tell me about a time you had to meet a tight deadline. How did you manage it?

Accepted Answer

Focus on prioritization, communication, and what you delivered despite the constraints.

Question 10

Describe a situation where you received critical feedback. How did you respond?

Accepted Answer

Show you're open to feedback, reflect on it constructively, and take action to improve.

Senior Frontend Developer at Sanctuary Computer

10 Interview Questions for This Role