I applied online. I interviewed at Paytm in Jan 2021
Interview
Most questions were related to Android platform and not app development per say. The interviewer himself was talking for most part. The worst thing was the HR didn't bother to get back to me after the interview. They didn't reply to my email.
Interview questions [1]
Question 1
- List all changes in all the API versions
- What is ADB and tell 5 ADB commands
- What is Dalvik and ART? Why was ART needed?
- What kind of environment is created and how does it run apps?
- What is AndroidX and why was it named so?
- Why are Android versions named on sweets?
- How does architecture helps in testing or any other way?
- Lazy vs lateinit
- Sealed classes
- Why does android uses the complex handler/threading system?
- How to track opening and closing of Activities?
- How to set and run break point in a library without restarting the running process?
1. Data structure and algorithm questions
2. android round
3. system design library.
4. hr connect
Design analytics manager using clean code and follow solid principles and it should be scalable.
Interview questions [1]
Question 1
design analytics library which can support multiple providers without much changes
I applied online. I interviewed at Paytm (Noida) in Jun 2025
Interview
I have Interview for Android developer role in paytm and I have 3 years experience. This is my first round and it's a technical round. I gave it on June 2025
Interview questions [1]
Question 1
Interviewer asked me deep knowledge about everything like he asked why you used repository class.can we call api direct from viewmodel without using repository. How can you secure your app. If activity is destroy on configuration changes time how can viewmodel store data. Dependency injection.memory leaks etc.
I applied through a recruiter. The process took 1 day. I interviewed at Paytm (Noida) in Feb 2021
Interview
Highly Unprofessional HR and process. They call you so many times to fix interviews but cant call back once to inform you the feedback, Has happened 2-3 times. I mean how difficult is it to convey the feedback?