Me postulé a través de un reclutador. Acudí a una entrevista en ServiceTitan en sep 2025
Entrevista
Recruiter Screen:
The process began with a standard recruiter phone call covering typical topics: previous work experience, motivation for joining ServiceTitan, and general background questions. This was a straightforward conversation with no surprises, following the usual format you'd expect from an initial screening call.
HackerRank Coding Assessment:
The second step was a coding assessment on HackerRank that involved implementing a custom data structure based on a given interface - essentially a dictionary that maps keys to lists of values (MultiMap). The task was divided into two parts: the first part required implementing the structure with basic functionality, which was very straightforward, while the second part asked for enhanced operations with more advanced features. The second portion can feel somewhat complicated given the time constraints and pressure of a timed assessment, though the problems themselves aren't particularly difficult and rely on fundamental coding concepts.
Second HackerRank Assessment (Concurrency & Parallelism):
The next round was another HackerRank assessment focused heavily on C#'s Task Parallel Library, requiring implementation of a recursive asynchronous URL parser. The complexity of the problem itself is moderate - perhaps 1.5x harder when accounting for interview pressure - but the real challenge comes from an unusual restriction: the company prohibits using Google search or AI assistance to verify syntax, forcing candidates to manually navigate through .NET documentation pages instead. This policy significantly increases the time spent on looking up basic syntax and method signatures, time that could be much better utilized actually solving the problem and demonstrating problem-solving skills.
Final Round (Not Completed):
I withdrew from the interview process before reaching the final stage, so I cannot provide firsthand details about this round. Based on typical patterns for similar companies and roles, it likely would have involved a system design or architectural interview - perhaps designing a large-scale system like a social media platform or similar complex application.
Preguntas de entrevista [1]
Pregunta 1
The second technical assessment centered around building an asynchronous URL parser that would recursively crawl and process web pages. The task required extensive use of C#'s Task Parallel Library to handle concurrent URL downloads while managing parallelism constraints (likely using semaphores or similar synchronization primitives). You needed to implement the recursive logic to follow links, parse content from downloaded pages, and coordinate multiple async operations efficiently.
90 min rounds - Glassdoor was helpful since they tend to repeat questions so check other reviews. After technical rounds, you math have a team match call with a hiring manager.
Me postulé a través de un reclutador. El proceso tomó 4 semanas. Acudí a una entrevista en ServiceTitan (Vancouver, BC) en abr 2026
Entrevista
Interview process consisted of one HR phone screening followed by three technical rounds.
The technical rounds were:
Pair coding: implement a custom data structure.
Pair coding: parallel processing and async programming.
System design: data processing and AI-related architecture.
The first two technical rounds were conducted by one interviewer each. The exercises were medium difficulty or lower, and the interviewers were fair and clear.
The third round was supposed to have two interviewers, but only one joined the call. This felt awkward because the expectation had been set that two people would be present. I had also recently seen another Glassdoor review mentioning a similar situation, where one interviewer left during the interview, so this gave me the impression that something was off.
I asked at the end why the second interviewer had not joined, but the answer was not very convincing and no clear reason was provided. It would have been better if this had been explained at the beginning of the interview.
To be fair, I was not very familiar with the topic in the third round, and I do not think I performed well there. However, the missing interviewer made the experience feel disorganized and created the impression that the process may not have been fully structured or transparent.
Me postulé en línea. Acudí a una entrevista en ServiceTitan (Montreal, QC) en mar 2026
Entrevista
Interview included 4 rounds, 1 with recruiter and 3 technical.
The first technical round was 1.5h pair programming session. The task was to implement a custom dictionary data structure. The complexity is medium or even below.
The second round also was 1.5h pair programming session and included parallel data processing using async/ await. The complexity was medium as well.
The third round was system design interview. The task was average as well, implement a system like Team City. On that round were present a Staff Dev and a Manager. The interview was 1.5h as well. In the very beginning the manager who were expected to lead the interview outlined the agenda: 1h of system design, 20 minutes for behavioral questions and 10 minutes for my questions. The interview started, they provided the task and I started asking questions about requirements, etc. and then designing. After approximately 10 minutes the manager disappeared. Just turned off his camera and microphone and I haven't seen him since. The staff dev didn't comment ghosting of his colleague and continued interviewing me. In fact, we were doing design all the session without any behavioral questions. In the end of the interview he said that I would receive the feedback by tomorrow evening. After 2 weeks the recruiter contacted me and said that they hired another person for that role.
Preguntas de entrevista [1]
Pregunta 1
1. Implement a custom dictionary data structure.
2. Implement an asynchronous web parser using parallel processing.
3. Design a system like Team City.
