F5 Networks
3.9 of 5 125 reviews
www.f5.com Seattle, WA 1000 to 5000 Employees

F5 Networks Software Engineer II Interview Questions & Reviews

Updated Jan 07, 2014
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Interview Difficulty 

4 candidate interviews Back to all interview questions
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Declined Offer

Neutral Experience

Software Engineer II Interview

Software Engineer II

I applied online and the process took 6 weeks - interviewed at F5 Networks.

Interview Details very good hiring process

Interview Question – parse tcpdump output using peerl   Answer Question

Reason for Declining – another job offer

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No Offer

Negative Experience

Average Interview

Software Engineer II Interview

Software Engineer II
Seattle, WA (US)

I applied online and the process took 4 weeks - interviewed at F5 Networks in September 2013.

Interview Details One phone session followed by 5 sessions of 1-1 interviews. HR was all praises on how good F5 is but I found it quite otherwise. We discussed salaries and F5 pays well. Technology is good, but they have some old timers who are trying to protect their turf. The office location is decent, but the buildings shake when trains pass through.

2/5 Interviewers were very well prepared and had specific questions related to position and work at the team. Even though I did not nail all the questions, I enjoyed the discussions and the problem solving mode they worked in. DNS, HTTP, TCP/IP, C++, Security, Data Structures.

1/5 interviewer asked very open ended general questions. I caught him yawning, before lunch.

2/5 interviewers were not well prepared and to a certain extent were hostile, aggressive and offensive. Both were older. One was very knowledgeable but arrogant. It was difficult to understand whether this person was asking a question or just giving an opinion for me to comment on. Twice, the other interviewer hinted that I was lying about how I executed on a problem and project. Did not provide any supporting evidence for me to counter. I tried to defend myself but this one nodded, waved and moved on, making notes and letting me know who was in control and who was being judged. This nasty behavior put me off for the rest of my time at F5.

My own assessment after the interviews was that I did good technically at 3/5 interviews and ok at 1/5 but this team will not be a good cultural fit.

Interview Question – I did not fare too well on DNS use cases and data structures around them.   Answer Question

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No Offer

Neutral Experience

Average Interview

Software Engineer II Interview

Software Engineer II
San Jose, CA (US)

I applied through an employee referral and interviewed at F5 Networks.

Interview Details Phone interview . 30 minutes call

Interview Question – Tell me about yourself ?

Technical Questions :
Multiple inheritance and how to avoid problems
Difference between IMAP vs POP vs SMTP
define Forests in Active Directory
Rate yourself in C++ on a scale of 1:10
Rate yourself in Java on a scale of 1:10

Behavior Questions :
Whats your strength?
Whats your weakness ?
  Answer Question

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3 people found this helpful

Accepted Offer

Positive Experience

Easy Interview

Software Engineer II Interview

Software Engineer II
Seattle, WA (US)

I applied through an employee referral and the process took a day - interviewed at F5 Networks in August 2012.

Interview Details My interview was more on the Front end development side (Web development) After an Initial phone screen, where everything went pretty smooth, I was called onsite.
I had a total of 5 panels and the people who interviewed were pretty cool.
My first interview was with the Director of the team who asked me all non technical questions, this was more about knowing my background and my past experience.
In my second round I was interviewed by a UI designer who asked me questions related to the UI design principles. It was not much difficult and it was not a typical interview where people drill you with questions. I showed them my portfolio of what I did in my previous job and explained about them. Most of my time went in that, so there was not much time to have that question answer thing!
Later, I was interviewed by my manager, which was a proper interview ;) He asked me almost about everything... Right from backend till the frontend, but the questions were very basic and straight forward.
My final interview was with a Senior Software Engineer, who asked me Javascript and JQuery related questions.

Overall, the interview went pretty well and the people were pretty cool. You will not feel like you are getting drilled by gazillion of questions, it will be more of a conversation and discussion more than a Q&A round. So be confident, get your portfolios and be ready to explain everything from your resume!

All the best

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