Rafael Algorithm / Compiler 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 Rafael.
Rafael
Algorithm Engineer
Mid Average Negative experience No offer 3 rounds
Interview process
Take home Technical screen Recruiter call
Interview formats
Coding Technical
It was a super long process, really drawn out with quite a few stages. The questions themselves weren't overly difficult, but there was like 3+ weeks between each interview. In total, there were 3 different meetings before they ultimately decided to pass on me. The process included a written test, a one-on-one interview, and a take-home assignment. The questions were pretty relevant to the role and not too challenging.
Confirmed questions1 question
- Could you implement a straightforward AI algorithm using Python as a take-home task?
Rafael
Algorithm Developer
Mid Average Positive experience No offer 4 rounds
Interview process
Recruiter call Technical screen Background check Offer
Interview formats
Technical Coding Behavioral
First, I had a phone call with a staff member to see if I was a good fit for the job. Then, the first technical interview, which was an hour and a half long. I didn't pass that one, but I know the next steps would have been a second technical interview, a human resources interview, and security clearance.
Confirmed questions3 questions
- Can you tell me about what you're doing in your current job?
- If you are given a binary image with a single line crossing it, how would you determine the camera angle adjustment needed so that the line becomes parallel to one of the image borders?
- Since the line's actual position deviates slightly from its image representation due to signal quantization during picture capture, how can we refine the angle calculated in the previous question for greater real-world accuracy?
Rafael
Algorithm Developer
Entry Average Negative experience No offer 1 round
Interview process
Technical screen
Interview formats
Technical Coding
We were in a small room with 7 students, and we had to take a test. The test had 3 questions. While we were taking the test, one student at a time was taken out for a 15-minute interview.
Confirmed questions1 question
- Tell me about the thief problem, a fundamental computer science problem.
Rafael Algorithm / Compiler Engineer Interview Questions
Quoted word for word from Rafael interview reports.
“Since the line's actual position deviates slightly from its image representation due to signal quantization during picture capture, how can we refine the angle calculated in the previous question for greater real-world accuracy?”
Read reports →“Solve the knapsack problem.”
Read reports →“If you are given a binary image with a single line crossing it, how would you determine the camera angle adjustment needed so that the line becomes parallel to one of the image borders?”
Read reports →“How would you implement an algorithm that counts bits of a uint32 in O(1)? Explain Huffman's compression algorithm.”
Read reports →“How would you design a system for transmitting bits using two orthogonal signals, specifically cos(w1t) and cos(w2t)?”
Read report →“Could you solve a problem about source localization?”
Read report →“Can you solve the thief problem?”
Read report →“Tell me about the thief problem, a fundamental computer science problem.”
Read report →“Could you implement a straightforward AI algorithm using Python as a take-home task?”
Read report →Formats, difficulty and experience
Across all 8 Rafael interview reports.