What to expect in a Commvault software engineer interview: language-specific MCQs, medium-level coding assessments, a team-placement chat, and a harder design-style round reported by a senior candidate.
$128K
Avg. Base Comp
$143K
Avg. Total Comp
Not reported
Typical Rounds
Not reported
Process Length
The three Commvault experiences we have cover different levels, so they are best read as separate data points. The online assessment is the common thread. A Software Development Engineer candidate chose between Java and C++ at the start, and that choice applied to the whole process. The test had language-specific MCQs on abstract classes, interfaces, constructors and syntax. It also had three coding problems that felt like medium LeetCode, drawing on graphs, dynamic programming and arrays. That candidate recommended practicing minimization problems and did not advance past the assessment.
A summer intern reported a HackerRank set of three problems on 2D arrays, strings and general algorithms, at easy-to-medium difficulty, in any language. That candidate had a referral. The recruiter asked which languages and experience they had so they could be matched to a team, and the candidate accepted an offer.
A senior candidate described a different path. It started with an aptitude test and an easy coding round, then a harder coding round that asked them to design a file system. The final stage combined a technical interview and an HR interview, and the outcome was no offer. This is a single report, so treat design-style preparation as a sensible precaution for senior roles, not a certainty.
In practice, pick one language you know deeply, practice timed medium problems, and prepare a short summary of your language strengths. If you are interviewing for a senior role, also rehearse open-ended design questions.
Synthesized from 3 candidate reports by our editorial team.
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Real interview reports from people who went through the Commvault process.
The technical portion was a standard HackerRank assessment with three problems: one on 2D arrays, one on string manipulation, and one on general algorithms. I could use any language I wanted. The difficulty felt like LeetCode easy to medium, so nothing exotic, but I'd still practice writing clean solutions quickly.
I had a referral going in, and the part I remember most wasn't the coding at all. The recruiter asked what languages I knew and what experience I had so they could place me on a team that fit. If you have a clear answer ready for that, it helps the conversation go smoothly.
The process didn't feel like a trap. Between the three problems and the placement conversation, the focus was on whether I could write working code and whether my background matched a team's needs. I ended up accepting the offer for the summer internship.
Prep tip from this candidate
Drill LeetCode easy-to-medium problems on 2D arrays and string manipulation, since the HackerRank set was three problems across those areas. Also have a concise answer ready about which languages you're strongest in, because that shaped how they placed the candidate on a team.
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Sourced from candidate reports and verified by our team.
Topics based on recent interview experiences.
Featured question at Commvault
Find the longest increasing subsequence in a list of integers.
| Question | |
|---|---|
| 2nd Highest Salary | |
| Merge Sorted Lists | |
| Empty Neighborhoods | |
| Top Three Salaries | |
| Closest SAT Scores | |
| Subscription Overlap | |
| Random SQL Sample | |
| Top 5 Turnover Risk | |
| Monthly Customer Report | |
| Upsell Transactions | |
| Find the Missing Number | |
| Top 3 Users | |
| Longest Streak Users | |
| String Shift | |
| Scrambled Tickets | |
| Find Bigrams | |
| Comments Histogram | |
| Largest Salary by Department | |
| Size of Joins | |
| Rolling Bank Transactions | |
| Customer Orders | |
| Prime to N | |
| Minimum Change | |
| Raining in Seattle | |
| Get Top N Frequent Words | |
| Last Transaction | |
| Find the First Non-Repeating Character in a String | |
| Rectangle Overlap | |
| Duplicate Rows |
Synthesized from candidate reports. Individual experiences may vary.
Candidates report an online assessment with three coding problems. One SDE candidate chose Java or C++ up front and also faced language-specific MCQs. An intern reported a HackerRank set covering 2D arrays, strings and general algorithms. Difficulty was described as roughly easy-to-medium LeetCode, and speed mattered.
An intern with a referral reported that the recruiter asked which languages they knew and what experience they had, in order to place them on a suitable team. This was one candidate's experience, so other candidates may see a different conversation, but a concise answer about your strongest languages is a reasonable thing to prepare.
A senior software engineer candidate described an early aptitude test of reasoning and logic questions, followed by an easy coding round on basic programming. The candidate found both manageable, but they may not predict the difficulty of later rounds. Other levels may not include this stage.
The same senior candidate said the difficulty jumped in a serious coding round, where the question was to design a file system. They called it an advanced, concept-based question and the heaviest part of the process. Candidates for senior roles may want to practice modeling hierarchical structures and explaining their design choices.
The senior candidate reported that the final stage combined a technical interview and an HR interview, after which they received a no-offer decision. The report gives no detail on the questions asked in this stage, so applicants should prepare for both technical discussion and a standard background and motivation conversation.
