Leetcode medium and some or on your experince
Principal Research Engineer Interview Questions
2,079 principal research engineer interview questions shared by candidates
How will you create the sales pipeline. Present a 30/60/90 days plan.
Can you share an example of a project that you're most proud of and why?
Design a high-traffic online food delivery system that can handle thousands of concurrent orders per minute. Explain how you’d ensure scalability, fault tolerance, and real-time updates to users
Final, finally Bean Scopes in spring Old Java Design patterns: Proxy, Adapter, Facade How would you implement a singleton? Gotcha Snippets ( == / equals / instanceof and other quirky, autoboxing and unboxing gotcha questions) What would you say if your manager turns your proposal down, says simply "this is not how we used to do things", then refuses to elaborate.
Word search problem on LeetCode
Algorithms similar to those on Leet Code, Easy to moderate.
Basic OOPs concept, Debug given code snippet, Fix the bug on the same code and add lines to fix it
Explain the different kind of ML model you have worked on ? How did you trian the model, what's data cleansing which methods did you use
How would kd you balance customer interviewing and innovation, especially since customers "don't know what they want?'
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