Luxoft Senior Software Engineer Interview Questions

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Luxoft

Part of DXC Technology

Interviews

Senior Software Engineer Interview

Apr 8, 2021

Anonymous Interview Candidate

No offer

Negative experience

Average interview

Application

I applied through a recruiter. I interviewed at Luxoft (Kraków) in Mar 2021

Interview

The interview process takes first HR interview, then technical interview then they sent me a sudoku task. They insisted me to complete the tasks as soon as possible which I did and I spent some time for interviews and also task and. at the end they told me the task and the interviews are successful but they close the ROLE. Briefly, it was a waste of time . A horrible HR! If you have a lot of. time to waste, please speak with the company

Interview questions [1]

Question 1

* Technical Interview basic Java Questions * Task about Sudoku

Answer question

Other Senior Software Engineer Interview Reviews for Luxoft

Senior Software Developer Interview

May 18, 2026

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I applied online. I interviewed at Luxoft in May 2026

Interview

An easy coding exercise at the beginning followed by a bunch of mostly theoretical questions from the programming language, frameworks, databases, concepts like microservices. Unfortunately the interviewer was from another project and couldn't answer my questions about the role.

Interview questions [1]

Question 1

You have an SQL query that is running slowly, what would you do to improve it?

Answer question

Senior Software Developer Interview

Jun 22, 2026

Anonymous Interview Candidate

No offer

Positive experience

Difficult interview

Application

I applied through a recruiter. I interviewed at Luxoft (Toronto, ON) in May 2026

Interview

The interview was for a contract role opportunity. It consisted of 3 rounds, one technical screening (45 mins), one managerial (30 mins) and one client round onsite (45 mins). Questions were based on Java, Python, SQL, Design Patterns, Microservices, AWS and one coding question. I cleared all the rounds but didn't get selected because of tough competition between me and the other candidate. The screening interviewer was quite friendly and tried to greet me in my language. The interviewers for client round were also friendly throughout the process and also dropped me back to the elevator area.

Interview questions [3]

Question 1

Technical screening consisted of these questions: What is multithreading, Java vs Python multithreading, GIL in Python, Thread vs Virtual Thread, Future vs Completable Future, ForkJoinPool vs WorkStealingPool, Java vs Python decorators, Java visitors, Java try-with resource vs Python with, What is AutoClosable, Comparator vs Comparable, SQL rank vs denserank, Java IO vs NIO, AWS SQS vs SNS, whats Saga pattern and how to implement it, Anonymous inner classes vs invokedynamic, Hashcollision in hashmap vs concurrenthashmap, how to process regular vs binary file in Java, types of proxies in Java, coding question of detect if graph is in loop.

Answer question

Question 2

Second round was managerial. Standard HR questions were asked. Tell me about yourself, what is sdlc and give an end-to-end example, how will you ramp yourself up in the first month, how did you deal with challenging scenarios.

Answer question

Question 3

Third round was client round onsite. There were two interviewers who took me to the conference room. One guy told me to write code in SQL to find duplicates in a table and then write the same code in Java, then he asked me if I worked with microservices before and I said yes. The other guy asked me what was my project about, how I implemented security in it, what was the code coverage, did I work for production level issues.

Answer question

Senior Software Engineer Interview

Apr 9, 2026

Anonymous employee

Accepted offer

Positive experience

Easy interview

Application

I interviewed at Luxoft (Kraków)

Interview

Easy 3 steps. First one with recruiter, second one technical and last one with manager. Each interview was conducted in friendly manner. Technical interview was question based, not leetcode style

Interview questions [1]

Question 1

Various GPGPU related questions that align with my role

Answer question

Luxoft interviews Luxoft Senior Software Engineer interviews Luxoft interview

Senior Software Engineer Interview

Apr 8, 2021

Anonymous Interview Candidate

No offer

Negative experience

Average interview

Application

I applied through a recruiter. I interviewed at Luxoft (Kraków) in Mar 2021

Interview

Interview questions [1]

Question 1

* Technical Interview basic Java Questions * Task about Sudoku

Answer question

Other Senior Software Engineer Interview Reviews for Luxoft

Senior Software Developer Interview

May 18, 2026

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I applied online. I interviewed at Luxoft in May 2026

Interview

Interview questions [1]

Question 1

You have an SQL query that is running slowly, what would you do to improve it?

Answer question

Senior Software Developer Interview

Jun 22, 2026

Anonymous Interview Candidate

No offer

Positive experience

Difficult interview

Application

I applied through a recruiter. I interviewed at Luxoft (Toronto, ON) in May 2026

Interview

Interview questions [3]

Question 1

Answer question

Question 2

Answer question

Question 3

Answer question

Senior Software Engineer Interview

Apr 9, 2026

Anonymous employee

Accepted offer

Positive experience

Easy interview

Application

I interviewed at Luxoft (Kraków)

Interview

Easy 3 steps. First one with recruiter, second one technical and last one with manager. Each interview was conducted in friendly manner. Technical interview was question based, not leetcode style

Interview questions [1]

Question 1

Various GPGPU related questions that align with my role

Answer question

Luxoft

Senior Software Engineer Interview

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Senior Software Developer Interview

Senior Software Engineer Interview

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Senior Software Engineer Interview

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