I applied through a recruiter. The process took 4 weeks. I interviewed at F5 in Apr 2026
Interview
Twice it had happened. F5 hr (first time) or third party consultants (second time) first take ctc and expected ctc over phone, then start scheduling interviews. After successfully clearing 3-4 rounds of discussions, HR will call and ask for expected ctc and try to offer less than our current ctc (not sure how they expect anyone can accept ctc less than their current ctc) and they say it is crossing our range for the role. Firstly they know their range for role and our ctc and expected ctc then why do they waste others time and energy. Second time I clearly told recruiter that schedule the discussions only if they are fine with expected ctc.
Recruit can reply to this review and can tell that my expectation is too high and unrealistic. For those people I had expected 8-10% over my current ctc.
Interview questions [1]
Question 1
About my current project and some hackerrank questions which need to execute and show the results
I applied through a recruiter. I interviewed at F5 (Bengaluru) in Sep 2025
Interview
The first round went fair. I was asked conceptual questions around kubernetes, work wise projects. One leetcode - easy question asked - to sort the values by positive values on even index and negative values on even index keeping the relative order of the array same.
The next round went nowhere. The interviewer didn't switch on the camera. Asked fundamentals about trees, stacks(create stack with queues, create a stack structure with out using stack). I ANSWERED ALL OF THEM BECAUSE THEY ARE SUCH FUNDAMENTALS.
The recruiter then called to share that the panel gave a negative fit because I don't know Golang. I repeatedly asked if there was a language restriction, and there was not even one time they said there was. It is such a bummer.
Interview questions [1]
Question 1
Sort the values by positive values on even index and negative values on even index keeping the relative order of the array same.
I applied through an employee referral. I interviewed at F5
Interview
3 rounds of tech interviews. Fourth round was Hiring Manager followed by HR. The process was well planned and executed.
It started with me getting a call from HR and then attending all the interviews over the weekend
Interview questions [1]
Question 1
Lots of questions pertaining to networking concepts
Senior Software Engineer applicants have rated the interview process at F5 with 3.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 53% positive. To compare, the company-average is 58.3% positive. This is according to Glassdoor user ratings.
Candidates applying for Senior Software Engineer roles take an average of 11 days to get hired, when considering 19 user submitted interviews for this role. To compare, the hiring process at F5 overall takes an average of 22 days.
Common stages of the interview process at F5 as a Senior Software Engineer according to 19 Glassdoor interviews include:
Phone interview: 32%
One on one interview: 26%
Skills test: 14%
Group panel interview: 8%
Presentation: 6%
Background check: 6%
Other: 2%
Personality test: 2%
Drug test: 2%
IQ intelligence test: 2%
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