
Placer.ai Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 8 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Placer.ai.
Software Engineer
The interview felt totally off the mark for the industry and the role. The interviewer drilled down on niche JavaScript stuff that's hardly ever used, and none of the questions felt like they were actually testing what the job needs or what you'd do day-to-day. It was weird why these specific things were being asked, and it made me wonder if they're even assessing people on the right things. Honestly, it felt like a total waste of my time, didn't show if I could actually code for the job or if I was ready.
- Anything tricky that wasn't overly difficult?
Software Engineer
I had a 30-minute phone call with an interviewer who asked me about my resume. Then, they scheduled a 1.5-hour technical interview. There's also a 1.5-hour home challenge, though I'm not sure what it entails. The interviewer was very thorough during our technical chat, asking me about every detail of the architecture I worked on, including Redis specifics, distributed systems concepts like load balancers, relational databases, vertical scaling, and OOP principles like inheritance and interfaces.
- Can you tell me about your resume?
- What is Redis and why is it beneficial?
- What are the use cases for Redis?
Software Engineer
All meetings were remote, and the process lacked consistency in question difficulty, making it feel like I was interviewing for two different jobs, one easy and one hard. It included a 30-minute screening interview, a 1.5-hour interview with the hiring manager, a 1-hour online HackerRank coding test, and a 1.5-hour interview with the back-end manager.
- Tell me about a project you've worked on.
- Can you decode an ASCII-encoded string (a-z, A-Z, 0-9)?
- How would you design a system to find the maximum building height within a given radius from a coordinate?
Placer.ai Software Engineer Interview Questions
Quoted word for word from Placer.ai interview reports.
“Implement a function that takes a file containing quotes separated by '*****' and returns a random quote.”
Read reports →“Given a point and a radius, identify the tallest building within that range.”
Read reports →“How does Spark's caching mechanism work internally?”
Read reports →“What are the drawbacks of multiple inheritance?”
Read reports →“How would we find the tallest building in a specific area?”
Read report →“Can you decode an ASCII-encoded string (a-z, A-Z, 0-9)?”
Read report →“How do distributed systems, such as those using load balancers, function?”
Read report →“What is Redis and why is it beneficial?”
Read report →“What are the core principles of Object-Oriented Programming?”
Read report →Formats, difficulty and experience
Across all 8 Placer.ai interview reports.