Moloco software engineer candidates report a CodeSignal screen, live coding, behavioral rounds and, in one account, AI-assisted coding, system design and a Bar Raiser. Here is what to prepare.
$182K
Avg. Base Comp
$237K
Avg. Total Comp
Not reported
Typical Rounds
Not reported
Process Length
Candidates describe Moloco's software engineering interviews as a mix of timed coding, live problem solving and conversations about past work, and the reports come from different levels. Two candidates describe a 70-minute CodeSignal assessment with four questions. One said the problems ramped from a simple warmup and two roughly LeetCode Easy questions to an Easy-Medium fourth. The other, interviewing for a senior SDK role, found the first two trivial but the third a sharp jump in difficulty. Expect the CodeSignal difficulty curve to be uneven, so practice finishing fundamentals quickly and leave time for the harder later problems.
The fullest account, from a candidate who received an offer, lists a coffee chat, an HR conversation, a behavioral "How We Work" interview, AI-assisted coding limited to chat mode, live coding on LeetCode-medium problems, system design and a Bar Raiser. That candidate said interviewers probed the reasoning behind architectural choices in a system they had owned, so be ready to explain trade-offs and alternatives in depth. A staff-level candidate reported a hiring-manager coding round on printing tree values in column order. The interviewer questioned a depth-first solution and the candidate switched to breadth-first, so know when each traversal fits.
Several candidates called recruiters responsive and clear about each stage. With only four accounts, treat the format as varying by role and level, and confirm the exact stages and assessment expectations with your recruiter.
Synthesized from 4 candidate reports by our editorial team.
Had an interview recently?
Share your experience. Unlock the full guide.
Real interview reports from people who went through the Moloco process.
The interview process unfolded across several distinct stages. An initial coffee chat got things started—casual, introductory. Then came the formal rounds: HR, followed by what they call a "How We Work" interview that was entirely behavioral, digging into past projects and my reasoning behind decisions. The technical portion had three components: AI-assisted coding (restricted to chat mode only, which was a constraint I hadn't expected), traditional live coding on LeetCode medium problems, and a system design discussion. A Bar Raiser interview wrapped things up as their final quality bar.
What made an impression was how much the company cares about the why behind your work. One round focused on a system I'd owned at a previous job—they didn't just want to know it existed, but exactly why I'd made certain architectural choices over alternatives. The live coding felt fair; nothing designed to trick you. The recruiters throughout were communicative and transparent about what each stage entailed. I received an offer.
Prep tip from this candidate
Be prepared to discuss a system you've built in depth, especially the architectural decisions and trade-offs you made—they'll probe your reasoning, not just whether it worked. Also practice AI-assisted coding since they test it with chat mode only, restricting other plugins.
Share your own interview experience to unlock all reports, or subscribe for full access.
Sourced from candidate reports and verified by our team.
Topics based on recent interview experiences.
Featured question at Moloco
Explain what a p-value is to someone who is not technical
| Question | |
|---|---|
| 2nd Highest Salary | |
| Empty Neighborhoods | |
| Top Three Salaries | |
| Merge Sorted Lists | |
| Top 3 Users | |
| Employee Salaries | |
| Closest SAT Scores | |
| Subscription Overlap | |
| Find the Missing Number | |
| Monthly Customer Report | |
| Top 5 Turnover Risk | |
| Raining in Seattle | |
| Random SQL Sample | |
| Largest Salary by Department | |
| Find Bigrams | |
| Get Top N Frequent Words | |
| Last Transaction | |
| String Shift | |
| Longest Streak Users | |
| Size of Joins | |
| Prime to N | |
| Scrambled Tickets | |
| Comments Histogram | |
| The Brackets Problem | |
| Like Tracker | |
| Weighted Keys | |
| Total Spent on Products | |
| Duplicate Rows | |
| Type I and II Errors |
Synthesized from candidate reports. Individual experiences may vary.
Candidates report early recruiter contact, and one also describes an informal coffee chat and an HR conversation. Recruiters were described as responsive and clear about each stage. Ask what the assessment and later rounds will cover, since one senior candidate felt the prep materials did not match the difficulty.
Two candidates describe a 70-minute CodeSignal test with four questions. One reported a progression from easy to Easy-Medium, while another found a sharp jump at the third question. One candidate did not advance past this test, so it may act as an early screen. Practice fundamentals under time pressure.
Candidates report live coding with interviewers, including LeetCode-medium style problems in one account. A staff-level candidate described a tree column-order problem where a DFS answer was challenged and a BFS approach was accepted. A candidate was also told to expect two one-on-one coding interviews after the assessment, and possibly a third.
One candidate describes a fully behavioral "How We Work" interview centered on past projects and the reasoning behind decisions. A senior candidate described a hiring-manager behavioral round with standard questions. Prepare to explain a system you owned, including why you chose one design over alternatives.
The candidate who received an offer reports AI-assisted coding restricted to chat mode, a system design discussion and a final Bar Raiser interview. Since this comes from one account, these rounds may not apply to every role or level. Practice using chat-based AI help while still explaining your own reasoning.
