Software Engineer

Software EngineerG15Medium to Hard

This interview process is for a Software Engineer position at Yandex, specifically for the G15 level. It is designed to assess a candidate's technical proficiency, problem-solving skills, and cultural fit within the company.

Rounds·3

Timeline·~14d

Experience·3 - 5 yrs

Comp band·US$110000 - US$150000

Interview time·150 min

Evaluation

What they measure.

  • Problem-solving approach and analytical skills.
  • Code quality, efficiency, and correctness.
  • Understanding of data structures and algorithms.
  • System design and architectural thinking.
  • Communication and collaboration skills.
  • Cultural fit and alignment with Yandex values.

Preparation

How to prepare.

Tips

  1. Review fundamental computer science concepts: data structures, algorithms, operating systems, databases.
  2. Practice coding problems on platforms like LeetCode, HackerRank, focusing on medium to hard difficulty.
  3. Study system design principles and common architectural patterns.
  4. Prepare for behavioral questions by reflecting on past experiences using the STAR method.
  5. Research Yandex's products, services, and company culture.
  6. Understand the specific technologies and programming languages mentioned in the job description.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures and Algorithms

Weeks 1-2: DSA fundamentals and practice.

Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, trees, graphs, hash tables, sorting, searching, dynamic programming, and greedy algorithms. Practice implementing these and analyzing their time and space complexity.

Questions

Commonly asked.

  • Given an array of integers, find the contiguous subarray with the largest sum.
  • Design a URL shortening service like bit.ly.
  • Explain the difference between a process and a thread.
  • Describe a time you had to deal with a difficult stakeholder.
  • How would you optimize a slow database query?
  • What are the trade-offs between REST and gRPC?
  • Tell me about a time you failed and what you learned from it.

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

Moscow

Interview focus

Deep understanding of distributed systems and cloud technologies.Experience with large-scale data processing and analysis.Proficiency in optimizing performance for high-throughput applications.

Common questions

  • Discuss a challenging project you worked on in a distributed systems environment.
  • How would you design a caching system for a high-traffic website?
  • Explain the CAP theorem and its implications for distributed databases.

Tips

  • Familiarize yourself with Yandex's cloud infrastructure and services.
  • Be prepared to discuss your experience with microservices architecture.
  • Highlight any contributions to open-source projects related to distributed systems.

Rounds

Round-by-round.

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

Med

Technical Interview (Coding) · 45 min · Software Engineer (Peer)

This round focuses on your fundamental programming skills. You will be asked to solve coding problems, typically involving data structures and algorithms. The interviewer will assess your ability to write clean, efficient, and correct code, as well as your problem-solving approach and how you handle edge cases. Expect to explain your thought process throughout the coding exercise.

What they look for

Strong grasp of data structures and algorithms.Clean and efficient coding practices.Systematic approach to problem-solving.Ability to communicate technical ideas clearly.

Evaluation

  • Correctness of the solution.
  • Efficiency of the algorithm (time and space complexity).
  • Clarity and readability of the code.
  • Ability to test the solution thoroughly.

Sample questions

  • Reverse a linked list.

    Data StructuresLinked Lists
  • Find the kth smallest element in a binary search tree.

    Data StructuresTreesBinary Search Trees
  • Implement a function to check if a string is a palindrome.

    StringsAlgorithms

Prep for this round

  1. 01Practice coding problems on platforms like LeetCode, focusing on common data structures and algorithms.
  2. 02Be prepared to explain the time and space complexity of your solutions.
  3. 03Practice writing code on a whiteboard or in a shared editor without relying on IDE features like auto-completion.

Common rejection reasons

  • ×Inability to articulate thought process.
  • ×Poorly structured or inefficient code.
  • ×Lack of understanding of fundamental algorithms.
  • ×Inability to handle edge cases.

DSA

Coding questions at Yandex.

Frequently reported on Yandex loops

Other guides

More at Yandex.