Mercury Systems Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 22 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Mercury Systems.
Mercury Systems
Software Engineer
Entry Easy Negative experience No offer 4 rounds
Interview process
Recruiter call Phone screen Technical screen Technical screen
Interview formats
Technical Coding
I had an interview scheduled with Mercury, but they were absent due to a calendar mix-up. We rescheduled, and I had a screening call. After asking for updates, I got to schedule an interview with a manager. On the day of that interview, they asked to postpone by an hour, which I agreed to, and they sent an updated meeting link. When I joined the meeting at the new time using the updated link, I was left waiting in an empty room again. They said they would look into what happened but offered no solution or rescheduling.
Confirmed questions5 questions
- Could you explain the virtual keyword in C++ OOP?
- What's the distinction between a struct and a class in C++?
- Can you list some C++ STL containers?
Mercury Systems
Software Engineer
Mid Difficult Positive experience Accept offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Behavioral
I was interviewed for a contract Software Engineer role focused on enhancing a new switch product. The interview provided a high-level understanding of the company and the rationale behind the new feature. I met with several interviewers, which allowed me to connect with potential colleagues. The interviews focused on how I could add value to the project and leverage my past experiences.
Confirmed questions1 question
- Regarding spanning tree correctness, what verification methods would you employ?
Mercury Systems
Senior Software Engineer
Senior Average Positive experience Accept offer 3 rounds
Interview process
Technical screen Technical screen
Interview formats
Coding Technical
The interview had three rounds. The first was about algorithms; if you've learned algorithms in school or solved easy problems on LeetCode, it should be fine. The second round was a technologies part, which was basically the hard one; you really had to understand core Java.
Confirmed questions1 question
- Can you explain the difference between a linked list and an ArrayList?
Mercury Systems Software Engineer Interview Questions
Quoted word for word from Mercury Systems interview reports.
“Design an O(n) algorithm to find the majority character in a string, returning null if none exists.”
Read reports →“Implement the `strcat` function in C.”
Read reports →“How does method overloading work in C++?”
Read reports →“What is a static variable?”
Read reports →“Can you write a C program that does the opposite of the atoi function?”
Read report →“What's the distinction between a struct and a class in C++?”
Read report →“Can you reverse a string of letters?”
Read report →“Describe method overriding in C++.”
Read report →“Could you write a function that swaps the bytes within a 32-bit integer?”
Read report →Formats, difficulty and experience
Across all 22 Mercury Systems interview reports.