Microsoft Frontend Developer Interview Questions (2026)

Landing a Frontend Developer role at Microsoft requires targeted preparation. Microsoft interviews typically include a phone screen followed by a full-day on-site loop with four to five interviewers. Each round focuses on different competencies including coding, system design, and behavioral assessment. The final round is often an As-Appropriate interview with a senior leader who makes the hiring decision. This guide covers the most frequently asked questions and insider tips to help you succeed in your Microsoft Frontend Developer interview.

About the Microsoft Interview Process

Microsoft interviews focus on coding ability, system design, and a growth mindset culture that values learning and collaboration.

Microsoft interviews typically include a phone screen followed by a full-day on-site loop with four to five interviewers. Each round focuses on different competencies including coding, system design, and behavioral assessment. The final round is often an As-Appropriate interview with a senior leader who makes the hiring decision.

Why Microsoft Frontend Developer Interviews Are Different

Microsoft Frontend Developer interviews differ from standard Frontend Developer interviews in several key ways. The company has a unique interview culture, specific evaluation criteria, and expects candidates to demonstrate alignment with their values and mission. Understanding these differences gives you a significant advantage over other candidates.

Top 10 Frontend Developer Interview Questions at Microsoft

1. At Microsoft, you might be asked: Explain the difference between var, let, and const in JavaScript.
2. At Microsoft, you might be asked: How does the virtual DOM work in React?
3. A common Microsoft interview question: What are CSS Flexbox and Grid, and when would you use each?
4. Expect this at Microsoft: Explain event delegation in JavaScript.
5. Expect this at Microsoft: How do you optimize website performance?
6. Expect this at Microsoft: What is the difference between server-side rendering and client-side rendering?
7. A common Microsoft interview question: Describe the CSS box model.
8. Microsoft interviewers often ask: How do you handle state management in large React applications?
9. Expect this at Microsoft: What are Web Accessibility (a11y) best practices?
10. At Microsoft, you might be asked: Explain the concept of closures in JavaScript.

Microsoft-Specific Preparation Tips for Frontend Developer Candidates

• Practice coding in your preferred language with emphasis on clean, readable code
• Study object-oriented design patterns and SOLID principles
• Prepare examples demonstrating a growth mindset and willingness to learn
• Be ready to discuss how you handle feedback and iterate on your work
• Research the specific team and product you are interviewing for

General Frontend Developer Interview Tips

• Build a portfolio of projects showcasing your frontend skills
• Practice implementing UI components from scratch
• Know the fundamentals of HTML, CSS, and JavaScript deeply
• Be ready to discuss performance optimization techniques

Preparation Timeline for Microsoft Frontend Developer Interviews

• 4 weeks before: Research Microsoft culture, recent news, and the specific team you are applying to.
• 2-3 weeks before: Practice technical questions daily and prepare behavioral stories using the STAR method.
• 1 week before: Do full mock interviews with HireFlow AI simulating Microsoft interview style.
• Day before: Review your notes, prepare questions for the interviewer, and get a good night of rest.

Practice Microsoft Frontend Developer Interview with HireFlow AI — our AI adapts to Microsoft's interview style and gives real-time feedback.