Hiring Laravel Developers: Interview Questions and Red Flags

The best Laravel developer interview questions focus on real-world trade-offs: Eloquent performance, queues and jobs, testing, security and version upgrades. Pair them with a short practical task and you will quickly see whether a candidate can build maintainable Laravel applications.

What separates a strong Laravel developer

A strong Laravel developer knows the framework's conventions and when to step outside them. They use the service container, form requests, policies and events sensibly, write tests by default and understand what Eloquent does under the hood.

Technical questions

Eloquent and the database

1. What is the N+1 query problem and how do you detect and fix it in Laravel?
2. When would you use a query builder or raw SQL instead of Eloquent?
3. How do you handle large data exports without running out of memory?

Architecture

1. Where do you put business logic — controllers, models, actions or services? Why?
2. How do you use events and listeners without making the flow impossible to follow?
3. How would you structure a multi-tenant SaaS application?

Queues and performance

1. Which work should go into queued jobs, and how do you make jobs idempotent?
2. How do you monitor failed jobs with Horizon?
3. What caching strategies have you used, and how do you invalidate them?

Testing and quality

1. How do you test a feature that sends email and calls a third-party API?
2. What is your approach to feature tests versus unit tests?

Upgrades

1. Describe the last major Laravel upgrade you performed. What broke?

A practical task

Ask the candidate to build a small feature: an endpoint that accepts an order, validates it with a form request, stores it, dispatches a queued job and returns a resource response — with tests. Two to three hours is enough to reveal habits.

Red flags

• Fat controllers with hundreds of lines and no tests.
• No awareness of N+1 queries or eager loading.
• Using env() calls throughout application code instead of config.
• Never upgraded a project beyond the version it started on.
• Stores secrets in the repository.

Green flags

• Talks about readability and team conventions.
• Uses Pest or PHPUnit naturally.
• Mentions Laravel ecosystem tools like Horizon, Telescope, Pint and Larastan.
• Can explain why they chose Livewire, Inertia or an API plus SPA for a past project.

Hire faster

If you would rather review pre-vetted candidates, our dedicated Laravel developers are tested on exactly these areas before you see a profile.