
Pattern Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 41 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Pattern.
Software Engineer
First, there was a phone screening to go over some basic background info, then a technical interview on Zoom covering HTTP, SQL, and coding problem-solving. After that was an onsite interview where I met the team and discussed my previous experience. Finally, there were reference checks. It was a pretty straightforward process. The recruiter was fantastic.
- How would you implement routes for this page, and what HTTP method and data structure would you use?
- Describe how you would implement routes to implement this page, including the HTTP method and data structure.
Software Engineer
The interview process was pretty standard. It started with 3 technical rounds: one screening and two one-on-one interviews via Zoom. I successfully passed all of these. However, I was really let down by the final round, which they called the 'top grading round'. I was rejected in this stage without any solid feedback, and then they just ghosted me. Later, I found out through my referral that I didn't get the job. They didn't even bother to give me feedback even after I followed up multiple times.
- Could you walk me through all of your past work experiences?
- What prompted you to leave your previous positions?
- How would you self-assess your performance in your prior roles, using a scale from 1 to 10?
Software Engineer
The interview process was a complete disappointment. It dragged on for over three months, with three rounds—two technical and one top-grading. Despite receiving excellent feedback after each round, my offer was ultimately rejected by the CEO for some inexplicable reason. To make matters worse, the company didn’t even bother to inform me of their decision—I had to chase HR myself to get any feedback. This level of unprofessionalism is unacceptable and shows a complete disregard for candidates’ time and effort. My advice: Do not rely on just one company, no matter how positive the feedback seems. Their decision-making process is painfully slow and heavily dependent on their American headquarters, which often makes arbitrary decisions. Save yourself the frustration by applying to other places simultaneously.
- Problem-solving question, a SQL query, and a few experience-related questions.
- Fundamental computer science concepts, Ruby on Rails-specific questions, and designing a database schema with validations.
- Focused on career history and behavioral questions.
Pattern Software Engineer Interview Questions
Quoted word for word from Pattern interview reports.
“What are the HTTP status codes and what do they signify?”
Read reports →“Given a tree structure, how would you retrieve the values of all children for a specific node?”
Read reports →“Why do you think Ruby is slower than Golang?”
Read reports →“Can you optimize this SQL query to avoid making individual database calls for each row?”
Read reports →“Can you explain how to find the depth of a binary tree?”
Read report →“Can you identify the mistakes in this Python code snippet?”
Read report →“What's the difference between different types of imports and exports?”
Read report →“How could you optimize data retrieval from a database to avoid repeated calls for child values?”
Read report →“Design an API for frontend software to query and filter records. Discussed pagination implementation.”
Read report →Formats, difficulty and experience
Across all 41 Pattern interview reports.