I applied to the job through Glassdoor. I got a call from ARM within a week. A F2F interview was scheduled. There were around 20 candidates with me. The interviewers were calm and gave enough time for the candidates to explain. I had 3 technical rounds, 1 hiring manager round and 1 HR round. First round - The interviewer asked me to introduce myself. My responsibility in the project I am currently working on. After that he asked me few puzzles.

1. There are two ropes of unequal length. One will burn in 1 hour and the other in 30 mins. I need to measure 45 minutes using these 2 ropes. ( Easy one- burn both ropes on both sides 30+15 mins)
2. Matchstick problem. Pattern is 5008. Move 2 matchsticks to make the largest number possible ( Easy one 81105!)
3. C programs on Fibonacci series, prime number, array sorting and factorial It went for 1 hour

Second round- This round is more challenging. He asked me about assembly level coding, microprocessors, CPU architecture, instruction cycles, cache memory, college project, counters, K maps, adders, MUX, flip flops, linked list, seven segment display using gates etc It went for 2 hours

Free lunch was served

Third round- Back to logical puzzles. Now little big ones!!

1. 25 horses, 1 race can have 5 horses. How many races are needed to find the top 3 horses?
2. 2 candles, both burn for 1 hour each. Measure 1 hour 30 mins(similar to rope problem)
3. xyz+xyz+xyz= zzz. Find x,y,z (Easy one 185+185+185=555)

Hiring manager round- He explained me about ARM culture, how the company is growing enormously, challenges in the team I will face, my interests about the company and the role I am applying for, difficulties faced in my current company, coping up with challenges etc It went for 45 minutes

HR round- Just a small conversation for 15 minutes. Offers in hand, notice period, compensation.

I already had offers in 5 service based companies(L&T, Wipro, Mindlance, Waferspace, Altran,) and 1 product based company ( Qualcomm). I opted ARM. Because of the work culture, the kind of technology I will be working on!!! One final word- Amazing company to be with!!!!!

Overall process from interview to offer release will take 2 weeks

Thanks for reading...

We discussed the 25 horses question, burning candles, matchstick puzzle, and other topics.