How long does the Idealista interview process take?

Most candidates spend between 4 and 8 weeks from recruiter screen to offer. The onsite loop itself runs in a single day or is split across two half-days, with debrief and offer typically within 5 business days after.

How should I prepare specifically for Idealista?

Focus on three things: (1) the company DNA shown above — what they actually grade for, (2) the rounds in your loop, especially the round most candidates underestimate, and (3) drilling on the question types in this guide using a structured framework like CIRCLES or STAR.

Does this apply to engineering or design roles at Idealista?

The DNA stays the same — what changes is the round mix. SWE candidates face coding screens instead of Product Sense; designers face portfolio reviews and design exercises. The "what they value" and behavioral signals carry across all functions.

What interests you about working at Idealista, specifically within a SaaS environment focused on real estate?

Type: Motivation. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Given a dataset of property listings with features like price, location, and number of rooms, design an algorithm to efficiently find the top K most similar properties to a given property, considering a weighted combination of these features. Assume the dataset can be very large.

Type: Algorithm. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Implement a Least Recently Used (LRU) cache for storing property search results. The cache should have a fixed capacity, and when it's full, it should evict the least recently used item to make space for new items. Consider thread safety if multiple users might access the cache concurrently.

Type: Data Structures. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Design the API for a 'Similar Properties' recommendation service. Consider the request/response formats, potential query parameters (e.g., property ID, user preferences), and how to handle scalability for millions of properties and users.

Type: API Design. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

How would you design a system to handle real-time updates for property availability and pricing across Idealista's platform? Consider the challenges of high write volume and ensuring consistency for users viewing listings.

Type: Scalability. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Implement a function to calculate the optimal pricing strategy for a property listing based on historical data, market trends, and user engagement. The function should return a suggested price range and the confidence level of that suggestion. Consider edge cases like new listings with no history.

Type: Algorithm. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Tell me about a time you had a significant technical disagreement with a colleague or manager. How did you approach the situation, what was the outcome, and what did you learn?

Type: Conflict Resolution. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Other roles at Idealista:Product Manager Software Engineer Marketing Sales

Growth · Software Engineer Interview Guide

How to Pass the Idealista Software Engineer Interview in 2026

The Idealista DNA (TL;DR)

Idealista values candidates who demonstrate strong problem-solving skills, a user-centric mindset, and the ability to adapt to a fast-paced, data-driven environment. They seek individuals passionate about real estate tech and improving the property search experience.

English original + your local-language translation

Tech and global multinational interviews are most often conducted in English. For industries like luxury, finance, or pharma, the working language may be local. We show every question in English first — alongside your local-language translation — so you can prep in whichever language your interviewer ends up using.

The Idealista Interview Loop

Your onsite loop will typically consist of 5 rounds.

1
Round 1
Recruiter Screen
Motivation, role fit, logistics.
2
Round 2
Coding Screen
LeetCode-medium algorithmic problems under time pressure.
3
Round 3
System Design
Distributed systems, trade-offs at scale, architecture under constraints.
4
Round 4
Onsite Coding
LeetCode-hard, debugging, code clarity, edge cases.
5
Round 5
Behavioral / Leadership
Past evidence of ownership, influence, resolving conflict.

The Danger Zone: Top Reasons Candidates Fail

Based on our database of Idealista interview outcomes, avoid these common traps:

Overly simplistic regex that misses valid variations or incorrectly parses numbers.
Designing a chatty API with too many small endpoints instead of a few well-defined ones.
Not considering the infrastructure needed for uploading and processing large media files.
Not considering rate limiting, authentication, or error handling in the API design.

Test Yourself: Real Idealista Questions

Three real prompts pulled from our database.

Type · Conflict Resolution

Tell me about a time you had a significant disagreement with a stakeholder (e.g., engineering lead, marketing manager, executive) about a product decision. How did you approach the situation, and what was the outcome?

Type · Debugging

A user reports that search results for 'apartments in Madrid' are sometimes missing properties that they know are listed. Analyze the provided (simplified) codebase for the search service and identify potential bugs or performance bottlenecks that could cause this issue. Fix the code.

Type · Ownership

Tell me about a time you took initiative to solve a problem that wasn't explicitly part of your job description. What was the situation, what did you do, and what was the outcome?

+ many more questions, signals, and worked examples

Unlock the rubric →

Idealista Interview Question Bank

A sample from our database, grouped by round. Sign up to see the full set.

9 of 19 questions shown

Recruiter Screen

1
Type · Motivation
What interests you about working at Idealista, specifically within a SaaS environment focused on real estate?

Coding Screen

2
Type · Algorithm
Given a dataset of property listings with features like price, location, and number of rooms, design an algorithm to efficiently find the top K most similar properties to a given property, considering a weighted combination of these features. Assume the dataset can be very large.
3
Type · Data Structures
Implement a Least Recently Used (LRU) cache for storing property search results. The cache should have a fixed capacity, and when it's full, it should evict the least recently used item to make space for new items. Consider thread safety if multiple users might access the cache concurrently.
+ 1 more questions in this round (sign up to unlock)

System Design

4
Type · API Design
Design the API for a 'Similar Properties' recommendation service. Consider the request/response formats, potential query parameters (e.g., property ID, user preferences), and how to handle scalability for millions of properties and users.
5
Type · Scalability
How would you design a system to handle real-time updates for property availability and pricing across Idealista's platform? Consider the challenges of high write volume and ensuring consistency for users viewing listings.
+ 1 more questions in this round (sign up to unlock)

Onsite Coding

6
Type · Debugging
A user reports that search results for 'apartments in Madrid' are sometimes missing properties that they know are listed. Analyze the provided (simplified) codebase for the search service and identify potential bugs or performance bottlenecks that could cause this issue. Fix the code.
7
Type · Algorithm
Implement a function to calculate the optimal pricing strategy for a property listing based on historical data, market trends, and user engagement. The function should return a suggested price range and the confidence level of that suggestion. Consider edge cases like new listings with no history.
+ 1 more questions in this round (sign up to unlock)

Behavioral / Leadership

8
Type · Conflict Resolution
Tell me about a time you had a significant disagreement with a stakeholder (e.g., engineering lead, marketing manager, executive) about a product decision. How did you approach the situation, and what was the outcome?
9
Type · Conflict Resolution
Tell me about a time you had a significant technical disagreement with a colleague or manager. How did you approach the situation, what was the outcome, and what did you learn?
+ 7 more questions in this round (sign up to unlock)

Unlock the full Idealista question bank

Free signup, no credit card. You get every question + the framework, grading signals, and worked answer for each.

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Interview tracks at Idealista

How Idealista's DNA translates across functions. Pick your role.

SWEs at Idealista are evaluated on their ability to build scalable, robust systems for high-traffic real estate platforms. Expect questions on data structures, algorithms, system design for features like search indexing or real-time notifications, and experience with relevant tech stacks like Java/Kotlin, Python, or Go.

Conflict Resolution

Debugging

+ 1 more

Unlock the Software Engineer grading rubric for Idealista

See full Software Engineer guide