Co-Op Engineer applicants have rated the interview process at ADTRAN with 2.6 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 78.2% positive. This is according to Glassdoor user ratings.
Candidates applying for Co-Op Engineer roles take an average of 22 days to get hired, when considering 7 user submitted interviews for this role. To compare, the hiring process at ADTRAN overall takes an average of 17 days.
Common stages of the interview process at ADTRAN as a Co-Op Engineer according to 7 Glassdoor interviews include:
Drug test: 26%
One on one interview: 21%
Background check: 21%
Group panel interview: 16%
Skills test: 11%
IQ intelligence test: 5%
Here are the most commonly searched roles for interview reports -
I applied through college or university. The process took 6 weeks. I interviewed at ADTRAN
Interview
I interviewed with some representatives at my school. They were quite nice and friendly. I asked some questions I had about the company and they asked about what I was interested in, the classes I was taking, and why I chose my major. I was invited for a second round of interviews on the Huntsville campus. They took me on a tour of the campus and I had two interviews while I was there. They asked me some technical questions dealing with the classes I have had up till then. I received an offer a few weeks later.
Prepare a professional, well-structured presentation that clearly highlights your skills, experience, and achievements. They also asked job-related questions during interviews or technical discussions. At the end, some routine discussion about the HR hiring process.
I applied online. The process took 2 weeks. I interviewed at ADTRAN
Interview
No automated tasks or programming tasks at all, instead an in-person meeting with the team and programming tasks describing what your experience is and describing some side projects etc. There was only one meeting after their internal CV screening. The response was rather fast, but the initial employment was rather slow. Ultimately I joined different team than I was talking with and worked with different tech stack.
Interview questions [1]
Question 1
To describe some of of my more complicated projects, how I approached work, what technologies I used, how i collaborated with others.
I applied through other source. The process took 1 week. I interviewed at ADTRAN (Israel) in Jun 2025
Interview
First I got a call from HR, and then I had a frontal interview. It was mostly professional. Was asked about networks, switches, and C++ questions, one of which was to write a code for the Blackjack casino game
Interview questions [1]
Question 1
If you had all the memory in the world, how would you store your data so that you can access it in O(1).