Top 100 Express.js Interview Q&A – Junior (2025)

🎯 Pass your next Express.js developer interview with confidence.

Built from real interview patterns, this pack includes the exact types of questions that junior Express.js candidates face at startups, SaaS platforms, backend teams, and API-driven product companies in 2025.

📘 Top 100 Express.js Interview Questions & Answers – Junior (2025)

A professional-grade prep tool designed to help you land your first Express.js developer role — faster.

💡 What’s inside:

• 100 high-impact interview questions tailored for junior-level Express.js and Node.js backend roles
• Clear, concise answers crafted by experienced Express developers and backend engineers
• Covers: Express.js app structure, routing with app.get/post/put/delete, middleware basics, request/response handling, route parameters & query strings, async/await, error handling, RESTful conventions, working with MongoDB (via Mongoose), simple JWT authentication, handling CORS, and using tools like Postman and Swagger (OpenAPI)
• Organized by topic → no fluff, no endless scrolling
• Printable, mobile-friendly PDF — ready when you are

🧠 Built for real hiring situations:

These questions reflect real interview patterns from 2024–2025 — based on recruiter input, dev team feedback, and real backend interview flows in Node.js/Express.js environments.

💼 Perfect for:

• Junior Express.js developers preparing for their first or second backend job
• CS students, JavaScript learners, or developers moving from frontend to fullstack
• Anyone applying to roles in modern backend stacks, REST APIs, or microservices using Express.js

✅ No theory dumps. No outdated tutorials.
Just the questions you’ll actually get — and the answers that help you pass.

📥 Download your copy now. Start prepping smart.
🎯 Get hired. Faster.