
Plex Systems, Inc. Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 11 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Plex Systems, Inc..
Software Engineer
Interview process: 1. Video call with technical team (SSE, Manager). 2. HR discussion. 3. HR sent salary breakup for approval. 4. When we followed up for the final offer, the HR team did not respond. Advice to everyone: Don't wait for the final offer, find a job elsewhere.
- What are your thoughts on OOPS principles?
- Can you explain the Solid principle?
- Describe your experience with SQL.
Software Engineer
I had a phone screen with the HR manager, who mostly talked about the company. Then, a 90-minute first interview with two development leads, which included about 45 minutes of whiteboard coding covering SQL basics like creating tables, joins, and aggregates. Three days later, HR contacted me for a second interview involving a written, open-ended technical test. I prepared for various technologies, but it turned out to be five straightforward SQL problems solved on a laptop. After that was reviewed, I had a nearly two-hour conversation with the VP of software and got a verbal offer right away.
- How would you approach SQL performance tuning?
- Describe how to implement a self-referential join.
- What are the implications of improper indexing on query performance?
Software Engineer
The whole process had 3 interviews. First, a phone interview with HR. It was a basic chat to get to know you and see if you'd fit in at Plex. The second interview was the main part. Two senior people at Plex asked me questions about my resume and experience. Then came the super stressful 'White Board Test', which was to check my programming and logic skills. There were also some SQL questions. The last interview was for the offer, which was more of a meeting than an actual interview.
- I didn't expect the second interview to involve standing in front of the interviewers and answering programming and SQL questions on a whiteboard.
Plex Systems, Inc. Software Engineer Interview Questions
Quoted word for word from Plex Systems, Inc. interview reports.
“What are the implications of improper indexing on query performance?”
Read reports →“Can you define what a primary key is?”
Read reports →“What is MVC?”
Read reports →“Describe how to implement a self-referential join.”
Read reports →“Regarding asp, how can you prevent the page or code from executing at a specific point within your code?”
Read report →“Could you explain the various types of SQL joins?”
Read report →“Can you explain semaphores?”
Read report →“Tell me about Web API 2.”
Read report →“Can you explain the Solid principle?”
Read report →Formats, difficulty and experience
Across all 11 Plex Systems, Inc. interview reports.