Τύπος · System Design

Growth · Οδηγός συνέντευξης Software Engineer
Applies via Welcome to the JungleΠώς να περάσετε τη συνέντευξη Software Engineer της Valiuz το 2026
Το DNA της Valiuz (TL;DR)
Οι συνεντεύξεις tech διεξάγονται στα αγγλικά
Ακόμη κι όταν κάνετε αίτηση τοπικά, η ίδια η συνέντευξη γίνεται σχεδόν πάντα στα αγγλικά. Σας δείχνουμε κάθε ερώτηση και prompt πρώτα στα αγγλικά — τη γλώσσα στην οποία θα γίνει η συνέντευξη — με μετάφραση από κάτω για να προετοιμαστείτε στην ισχυρότερη γλώσσα σας.
Το Interview Loop της Valiuz
Το onsite loop σας θα αποτελείται τυπικά από 5 γύρους.
- 1
Γύρος 1
Recruiter ScreenMotivation, role fit, logistics. - 2
Γύρος 2
Coding ScreenLeetCode-medium algorithmic problems under time pressure. - 3
Γύρος 3
System DesignDistributed systems, trade-offs at scale, architecture under constraints. - 4
Γύρος 4
Onsite CodingLeetCode-hard, debugging, code clarity, edge cases. - 5
Γύρος 5
Behavioral / LeadershipPast evidence of ownership, influence, resolving conflict.
Η ζώνη κινδύνου: Κορυφαίοι λόγοι που οι υποψήφιοι αποτυγχάνουν
Με βάση τη βάση δεδομένων μας με αποτελέσματα συνεντεύξεων Valiuz, αποφύγετε αυτές τις συνηθισμένες παγίδες:
- Not considering the velocity and volume of data required for real-time detection.
- Not considering scenarios with very few users in a segment.
- Failing to show ownership beyond the initial implementation.
- Over-engineering or making the code unnecessarily complex.
Δοκιμάστε τον εαυτό σας: Πραγματικές ερωτήσεις Valiuz
Τρία πραγματικά prompts τραβηγμένα από τη βάση δεδομένων μας.
Τύπος · Technical Decision Making
Τύπος · Code Clarity
+ πολλές ακόμη ερωτήσεις, σήματα και επεξεργασμένα παραδείγματα
Εγγραφείτε για να ξεκλειδώσετε τη ρουμπρίκα βαθμολόγησης JobMentis
Valiuz Interview Question Bank
A sample from our database, grouped by round. Sign up to see the full set.
9 of 20 questions shown
Recruiter Screen
1- 1
Τύπος · Motivation
What interests you about working at Valiuz, specifically within the advertising technology space?
Coding Screen
3- 2
Τύπος · Algorithmic
Given a stream of ad impression events, each with a timestamp and a campaign ID, design an algorithm to calculate the number of unique campaigns shown in the last 5 minutes. Assume the stream can be very large. - 3
Τύπος · Algorithmic
Implement a function that takes a list of ad creatives (each with an ID and a list of target audience segments) and a user profile (with a list of segments they belong to). Return a list of ad creative IDs that match at least one segment in the user's profile. Optimize for performance when the number of creatives and segments is large. - + 1 more questions in this round (sign up to unlock)
System Design
3- 4
Τύπος · System Design
Design a real-time bidding (RTB) system for ad impressions. Consider the components involved, data flow, latency requirements, and scalability. - 5
Τύπος · System Design
Design a system to detect and filter out fraudulent ad clicks. How would you identify suspicious patterns, and what technologies would you use? - + 1 more questions in this round (sign up to unlock)
Onsite Coding
3- 6
Τύπος · Algorithmic
Given a large dataset of user browsing history (user ID, page URL, timestamp), write a function to find the top K most frequently visited pages for a specific user, within a given time range. Handle potential memory constraints. - 7
Τύπος · Code Clarity
Refactor this piece of code [provide a complex, poorly structured function related to ad targeting logic] to improve its readability, maintainability, and testability. Explain your changes. - + 1 more questions in this round (sign up to unlock)
Behavioral / Leadership
10- 8
Τύπος · Past Experience
Tell me about a time you had to influence a senior stakeholder or engineering team to adopt your product vision when they were initially resistant. - 9
Τύπος · Teamwork
Tell me about a time you had a significant disagreement with a colleague or team member. How did you approach the situation and what was the outcome? - + 8 more questions in this round (sign up to unlock)
Unlock the full Valiuz question bank
Free signup, no credit card. You get every question + the framework, grading signals, and worked answer for each.
Interview tracks at Valiuz
How Valiuz's DNA translates across functions. Pick your role.
SWEs are assessed on building scalable data pipelines, robust ad delivery systems, and efficient data processing algorithms. Strong CS fundamentals, experience with big data technologies, and practical problem-solving in high-throughput ad tech are key.
System Design
Technical Decision Making
+ 1 more
Unlock the Software Engineer grading rubric for Valiuz
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