Scale Engineer

Middle

Software Engineer18Medium

The interview process for a Middle Software Engineer at Ozon is designed to assess a candidate's technical proficiency, problem-solving skills, and cultural fit within the company. It typically involves multiple rounds, starting with an HR screening, followed by technical interviews focusing on data structures, algorithms, system design, and coding, and concluding with a managerial or team-fit interview.

Rounds·4

Timeline·~7d

Experience·2 - 5 yrs

Comp band·US$80000 - US$120000

Interview time·195 min

Evaluation

What they measure.

  • Problem-solving ability
  • Algorithmic thinking
  • Coding proficiency
  • System design capabilities
  • Communication skills
  • Teamwork and collaboration
  • Adaptability and learning agility
  • Cultural fit

Preparation

How to prepare.

Tips

  1. Review fundamental data structures and algorithms.
  2. Practice coding problems on platforms like LeetCode or HackerRank.
  3. Study common system design patterns and principles.
  4. Prepare to discuss your past projects and technical challenges in detail.
  5. Research Ozon's products, services, and company culture.
  6. Prepare questions to ask the interviewer about the role and the company.

Study plan

Fig · Study plan — 05 phases

01 / 05
01

Phase 01 of 05

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms fundamentals. Practice coding.

Weeks 1-2: Focus on core data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, recursion). Practice implementing these in your preferred language. Understand time and space complexity (Big O notation).

Questions

Commonly asked.

  • Write a function to find the kth largest element in an unsorted array.
  • Design a URL shortening service like bit.ly.
  • Explain the difference between a process and a thread.
  • How would you optimize a slow database query?
  • Tell me about a time you had to mentor a junior engineer.
  • What are your strengths and weaknesses as a software engineer?
  • Describe a situation where you had to deal with ambiguity in requirements.

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

Moscow

Interview focus

Understanding of local market nuances and user behavior.Adaptability to specific regional technical challenges.Communication skills in the local language and cultural context.

Common questions

  • How would you handle a sudden surge in traffic on our platform?
  • Describe a challenging bug you encountered and how you resolved it.
  • What are your thoughts on microservices architecture?
  • How do you ensure code quality and maintainability?
  • Tell me about a time you had to work with a difficult stakeholder.

Tips

  • Research Ozon's presence and operations in this specific region.
  • Be prepared to discuss projects relevant to the local market.
  • Highlight any experience working with international teams or in diverse cultural environments.

Rounds

Round-by-round.

Expand a step for evaluation criteria, sample questions, and prep notes.

DSA

Coding questions at Ozon.

Frequently reported on Ozon loops

View all at Ozon

Other guides

More at Ozon.