Overall it was a pretty positive experience. I applied online through the company website. I am an Engineering graduate student. There was a fairly quick turnaround after each round of interviewing. 1st Round: Video Interview 1. Why are you interested in this internship? 2. What skills do you have that make you a good fit? 3. Tell me a time when you had multiple deadlines, and how did you handle it? 4. Tell me about a team project and why you think it was successful. 5. Are you authorized to work in the US without restriction? 6. What is your GPA? The best advice I have is to practice and be confident. I received an invitation for the next round within 24 hours I think. 2nd Round: Hackerrank Interview I went into this interview feeling pretty confident. Hackerrank administers online programming tests. I had prepared for this using cplusplus.com (which was my language of choice). You can select Java/Javascript if you are more comfortable with that however. I chose MATLAB and C/C++. There was an analytical thinking section was first and I choked almost immediately. The questions weren’t difficult per se but definitely required thought. I didn’t answer a lot but the ones I did I think I got right. I am a teaching assistant for a class in MATLAB and even I thought the MATLAB section was hard. The questions were very technical/nitty gritty. Here are a few topics: - stem - gca/gcf - matrix indexing/concatenations - private functions - tic toc - nested functions Definitely know the ins-and-outs for these. They will get you. If I thought the MATLAB section rocked me, I literally got my pants pulled down on the C/C++ portion. I don’t know programming that well and I couldn’t complete the two programming questions. In all honesty, I question how I was able to make it to the next round with how bad I performed on this section. Here are som,e concepts to know: - constructors/deconstructors - classes - inheritance - template classes - null pointers - call by value vs. call by reference If you are an undergraduate and have just taken classes on these topics you will probably do well. I failed my programming class as an undergrad so I did poorly. Like I said, I was shocked I made it to the next round. 3rd Round: Telephone Interview I honestly think this was easier than the previous round. The employee I spoke with was extremely nice and understanding of me as an interviewee. For this round there were several sections: Math/Calculus, Programming Concepts, C/C++ (language of choice), MATLAB, and one other one that I had to choose between Embedded Systems, DSP, and Control Systems. I chose DSP. MATLAB Is this matrix invertible? (The interviewer gave me a matrix and I had to tell him if it was invertible or not and explain why) Can you have a file named “filter.m”? Calculus/Diff EQ What is the characteristic equation? Remember your diff eq! Solve a simple ODE Partial Fraction Decomposition DSP What is the Nyquist Sampling Rate? What is the Laplace transform of this ODE? FIR vs. IIR for discrete time signals C/C++ What is the output of the following code? int main () { int *arr = new int[5]; for (int idx = 0; idx < 5; ++idx) { arr[idx] = idx; cout << *(idx + arr) * 2 <<” “; } cout<<endl; delete arr; return 0; } There was also another question on classes. Like I said, this round wasn’t that bad. I think after this round, they interview you on site, or a manager calls you. At which point, I’m assuming an offer isn’t too far off. Obviously at any point they can give it to you but that is the typical progression I think. Hope this helps!