20 Questions

Questions to Ask a Full Stack Developer

Essential technical and cultural questions to identify skilled full stack developers who can handle both frontend and backend challenges.

1

Can you walk me through a recent project where you handled both frontend and backend?

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Why this works

Reveals hands-on experience, technical breadth, and ability to articulate complex work across the stack.

2

How do you decide between building a monolithic application versus microservices?

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Why this works

Shows architectural thinking, understanding of trade-offs, and ability to match solutions to business needs.

3

What's your approach to managing state in modern web applications?

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Why this works

Tests frontend expertise and familiarity with state management patterns like Redux, Context API, or Zustand.

4

How do you handle database schema design and migrations?

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Why this works

Assesses backend database skills, planning ability, and understanding of data modeling best practices.

5

What's your strategy for securing API endpoints?

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Why this works

Reveals security awareness, knowledge of authentication/authorization, and practical implementation experience.

6

How do you optimize application performance across the entire stack?

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Why this works

Shows problem-solving approach, performance tuning skills, and ability to diagnose bottlenecks anywhere.

7

What testing strategies do you use for frontend versus backend code?

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Why this works

Demonstrates testing maturity, quality mindset, and understanding of different testing approaches by layer.

8

How do you stay current with rapidly changing web technologies?

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Why this works

Reveals learning habits, passion for technology, and commitment to professional growth.

9

Can you explain your preferred development workflow from local to production?

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Why this works

Shows DevOps awareness, deployment experience, and understanding of CI/CD pipelines.

10

What's your experience with containerization and orchestration tools?

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Why this works

Tests modern infrastructure knowledge including Docker, Kubernetes, and cloud deployment patterns.

11

How do you approach responsive design and cross-browser compatibility?

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Why this works

Assesses frontend skills, attention to user experience, and practical CSS/layout expertise.

12

What's your process for debugging production issues?

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Why this works

Reveals troubleshooting methodology, monitoring tools knowledge, and ability to handle pressure.

13

How do you balance code quality with delivery speed?

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Why this works

Shows pragmatic thinking, understanding of technical debt, and ability to make business-aligned decisions.

14

What's your experience with cloud platforms like AWS, Azure, or GCP?

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Why this works

Tests cloud infrastructure knowledge, deployment experience, and familiarity with modern hosting.

15

How do you handle version control and branching strategies?

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Why this works

Assesses collaboration skills, Git proficiency, and understanding of team workflow patterns.

16

What's your approach to API design and documentation?

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Why this works

Reveals backend design thinking, communication skills, and consideration for API consumers.

17

How do you ensure accessibility in your frontend work?

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Why this works

Shows awareness of inclusive design, WCAG standards, and commitment to building for all users.

18

What's the biggest technical challenge you've solved recently?

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Why this works

Reveals problem-solving ability, technical depth, and how they handle difficult situations.

19

How do you approach code reviews with team members?

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Why this works

Assesses collaboration style, communication skills, and ability to give/receive constructive feedback.

20

What questions do you have about our tech stack and engineering culture?

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Why this works

Shows their priorities, curiosity, and what matters to them in a work environment.

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