Sixt

Role: SDE-1

College: Not Specified

Interview Date: July 2025

Interview Type: Off-Campus, Full-Time

Result: Not Specified

Difficulty: Medium

Rounds: 5 rounds

Topics Asked: Data Structures, Algorithms, Operating Systems, DBMS, System Design, Projects, Behavioral

Experience:

This candidate interviewed for an SDE-1 position at Sixt R&D Bengaluru, India. The process consisted of 5 online rounds.

Round 1: Online Assessment (1 hr 30 min)

• Conducted on HackerEarth.
• Had two sections: around 15 technical MCQ questions (OS, DBMS, Data Structures) and 2 coding questions.

Round 2: Technical Interview Round 1 (Around 50 mins)

• Started with an introduction.
• Two DSA questions were asked on a shared screen platform.
  1. Find the common nodes in two singly linked lists.
  2. Print all the boundary nodes of a binary tree. Example: For a given binary tree, output: { 20, 8, 4, 22, 25, 10, 14 }.
• The interviewer was satisfied with the pseudocode and dry run for both questions.
• Follow-up questions on DBMS (SQL query on self-join) and OS (Singleton design pattern).

Round 3: Technical Interview Round 2 (Around 50 mins)

• Two DSA questions were asked on a shared coding platform.
  1. Detect loop in given linked list and discussed time & space complexity.
  2. Connect siblings in a binary tree (connect only leaf nodes). Given a node with either 0 or 2 children, connect the left leaf child with its right leaf child at the same level and return the updated tree.
• Discussion on the candidate's projects from the resume for about 15-20 minutes.

Round 4: Managerial Round

• Focused on self-expression and project explanation.
• Ended with the candidate asking questions to the interviewer.

Round 5: HR Round (10-15 mins)

• Questions about background and hobbies.
• "Why I wanted to join the company."