Ciena Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 428 interview experiences · FREE TO READ
Which role are you interviewing for?
30 roles · 428 reportsCandidate interview experiences
First-hand accounts from people who interviewed at Ciena.
Ciena
Technical Support Specialist
Mid Average Negative experience No offer 1 round
Interview process
Recruiter call Technical screen Background check
Interview formats
Behavioral Technical
I interviewed with Ciena for the Advanced Technical Support Specialist role, and it went for over an hour. They mostly wanted to see if I was a good fit, asking about my current job, my past experience, and some scenario questions. The interview itself was good, and I felt I explained my experience well. But after the interview, I never heard back about a decision. I waited more than a month and followed up twice with the recruiter, but got no reply. It was disappointing to be ghosted by the recruiter after following up, and it left a bad impression. I know hiring can take time, but some basic communication, closure, or even a rejection would've been nice after all the time and effort I put in.
Confirmed questions3 questions
- Can you tell me about your current job roles and responsibilities?
- Describe your past experience.
- What are your thoughts on these hypothetical situations?
Ciena
AI Agent Developer Intern
Intern Average Positive experience Accept offer 1 round
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Behavioral
The interview was just one round over zoom. The interviewer started with some small chat to ease up the vibe, which was very helpful. First, we started with 3 technical questions related to this position. Then, we dived deep into my resume, with multiple follow up questions that goes deeper and deeper. I brought up some papers and articles I read, they asked questions on those. There were 2 interviewers, they were very friendly and supportive. When I got confused by the questions, the other interviewer helped rephrase the question to help me understand.
Confirmed questions5 questions
- Can you explain top-k and top-p sampling in the context of transformers?
- Could you elaborate on the technical details of your past internships and projects?
- What was your reasoning for choosing a particular method or approach?
Ciena
C++ Developer
Entry Difficult Positive experience No offer 2 rounds
Interview process
Take home Technical screen
Interview formats
Technical Coding Behavioral
It was an on-campus opportunity. The first part was an online assessment (OA) which mainly had fundamental questions covering C++, Operating Systems (OS), Computer Networks (CN), Linux, and aptitude. After that, there was an interview which included basic Data Structures and Algorithms (DSA) questions and tested my understanding of C++ concepts like pointers, Object-Oriented Programming (OOPs), and memory management. Since my project was related to OS, I was asked several questions about it.
Confirmed questions8 questions
- Could you answer some fundamental questions on C++, OS, CN, Linux, and aptitude?
- Can you solve some basic DSA questions?
- How strong is your grip on C++ (pointers, OOPs, memory management)?
Ciena
Sales Assistant
Entry Easy Positive experience No offer 2 rounds
Interview process
Recruiter call Technical screen Phone screen
Interview formats
Behavioral Technical Case
So, the interview had a couple of parts. First, an HR chat, then a round with the hiring manager where we talked tech stuff and some real-world scenarios. We covered how I explain technical things in terms of business results, my approach to selling solutions, and how I work with account execs and clients. They also threw in some 'what if' questions to see how I'd deal with customer pushback, customize demos, and match what the product does to what the client needs. It was pretty chill, focused on knowing my stuff technically and being able to talk about it clearly.
Confirmed questions7 questions
- Could you share an instance where you had to translate complex technical information into tangible business value for a client who wasn't technically savvy?
- Can you tell me about a time you had to translate complex technical information into business value for a non-technical client?
- Describe your experience with the solution-selling approach.
Ciena Interview Questions
Quoted word for word from Ciena interview reports.
“What is NSSA in OSPF, and how does the AS-PATH appear when a route update originates from a BGP confederation?”
Read reports →“Can you divide a large, size-unknown array into two equal halves by splitting it in the middle, with an optimization better than O(n), possibly using a Java built-in method, function, or data structure?”
Read reports →“How can you maximize an N-digit number by inserting an additional digit, x?”
Read reports →“Can you show me how to write a C function that accepts a pointer to an integer and changes its value within the function?”
Read reports →“Can you write code on paper to determine if a linked list of characters forms a palindrome?”
Read report →“Given a string that might have extra spaces at the beginning, end, or in the middle, could you alter it directly, without relying on any built-in functions, so that when it's printed, there are no leading or trailing spaces?”
Read report →“Can you explain the difference between a Java interface and an abstract class?”
Read report →“Can you explain the purpose of the asterisk (*) in the *ngIf directive, and why aren't alternative solutions acceptable?”
Read report →“What are the different methods for calling variables from a method, and what distinguishes them?”
Read report →Formats, difficulty and experience
Across all 428 Ciena interview reports.