GeeksforGeeks Question · May 2020 · Pune

Schlumberger Pune Interview Experience - Internship

SWE Recruiter Intern Easy

Question Details

Schlumberger is an oil-field service company and was in our college campus for hiring the interns for software section in Pune.

Round 1 Aptitude TestIt consisted of 2 codi...

Full Details

Schlumberger is an oil-field service company and was in our college campus for hiring the interns for software section in Pune.

Round 1 Aptitude Test It consisted of 2 coding problems and 6 MCQs on Data Structures and Coding. Problems for coding were simple, required the mathematical formulation of the given problem and putting it into the code. MCQs were of average difficulty.

Round 2 It was conducted in the company. First-round was technical, CV oriented. The interviewer asked the basic questions on Data Structures and Algorithms (sorting, trees) and other common coding problems. Questions related to the project and skills mentioned in the resume were asked. Some questions from Operating System were also asked.

Round 3 It was non-technical round, was exploring my imagination capacity and understanding about today's trending technologies. The interviewer asked me to tell any 'new' problem that I would like to solve using AI. This round was different from the typical HR Interview.

Round 4 It was again technical round. This time interviewer tested my basic concepts and asked me to write very basic codes (finding substrings) and asked to explain it and optimize. Basic queries of SQL were also asked.

Round 5 This was an HR round. The interviewer asked me typical questions like 'tell me about yourself', 'why this company', 'tell me your strengths' and 'any example in your life that showcases these strengths' etc. The interviewer also asked me to briefly tell about my co-curricular and extra-curricular activities. Results were conveyed 5-6 days later, and I was selected !! But, later, as the company experienced difficulties due to crashing of oil prices in COVID-19, the company cancelled its whole internship program.

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About This Question

This is a reported interview question from a schlumberger interview for a swe role (intern level) during the recruiter round reported in 2020.

It covers the following topics: Strings, Trees, Sorting, Sql, Os .

Difficulty rating: Easy

About Schlumberger Interview Reports

This question was reported by a candidate who interviewed at Schlumberger. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.

Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Schlumberger are the higher-signal extractions to take from this report.

For broader preparation context, the Schlumberger interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.

How To Practice This Type of Question

Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.

Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Schlumberger reports consistently are the ones worth investing in; one-off niche problems are not.

During Your Schlumberger Round

Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.

The single most predictive failure mode in Schlumberger reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.