Home/Interview prep/Backend Developer Fundamentals Workshop

Walk into the interview already prepared.

Timed mock tests and model answers written by working engineers, for every level from fresher to lead. Pick any of our 75 courses below.

Topic: Web & Backend Development (HTML/CSS/JS, PHP/Laravel, APIs). Questions are shared by related courses. View the Backend Developer Fundamentals Workshop course →

All Backend Developer Fundamentals Workshop interview questions at a glance+

Fresher (0–3 years): Junior Web / Backend Developer

  1. What happens when you type a URL into a browser?
  2. Explain MVC in a framework like Laravel.
  3. Design REST endpoints for a blog.
  4. Which CSS layout is best for a two-dimensional grid?
  5. What does "responsive design" mean?
  6. Which HTTP method is used to create a resource in REST?
  7. In Laravel, Eloquent is…
  8. "let" vs "const" in JavaScript?
  9. Why hash passwords instead of storing them?

Mid-level (3–8 years): Web / Backend Developer

  1. How do you secure a web application?
  2. A page is slow. How do you improve performance end to end?
  3. How do you deploy a Laravel app safely?
  4. CSRF protection in Laravel forms is provided by…
  5. Output escaping ({{ }} in Blade) mainly prevents…
  6. An idempotent API operation…
  7. Laravel queues are used to…
  8. Which HTTP header helps prevent clickjacking?
  9. Core Web Vitals measure…

Experienced (8–15 years): Senior Full-stack / Backend Engineer

  1. Design a scalable architecture for a growing web platform.
  2. How do you modernise a legacy PHP application safely?
  3. How do you design APIs used by many partner companies?
  4. GraphQL vs REST: GraphQL mainly helps when…
  5. Rate limiting and bot protection on forms protect against…
  6. Scaling a PHP app horizontally requires…
  7. Server-side rendering mainly improves…
  8. Backward-compatible API changes include…
  9. Content Security Policy (CSP) helps by…