I applied through an employee referral. The process took 3 weeks. I interviewed at RadiSys (New Delhi) in Dec 2020
Interview
Minimum 3 rounds process where you are asked about the technology & the projects that you have worked on in detail.
Apart from 4G/5G, you will be asked coding questions ranging from bitwise operators, arrays, pointers etc.
Interview questions [1]
Question 1
1. Initial attach process
2. Channel estimation flow & algorithms
3. Difference between TM7, 8 & 9 in LTE
I applied in-person. The process took 1 day. I interviewed at RadiSys (London, England) in Oct 2019
Interview
1 technical round, 1managerial round and HR round. It depends on how you performed in each round. If you perform well then number of rounds will be reduced. All rounds will be completed on same day
I applied through other source. I interviewed at RadiSys (Bengaluru) in June 2015
Interview
Generally Telephonic interview followed by Face to face. Flexible on timing of interview. Generally will have 3 to 4 rounds of interview. Interview panel is generally skilled senior people. Decision process takes time.
Interview questions [1]
Question 1
Data structures and Algorithm concepts on C and technology