TCS
Large multinational IT services and consulting enterprise based in India.
3 Rounds
~14 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Machine Learning Engineer
•
System Design
•
hard
Design a Retrieval-Augmented Generation (RAG) system for a client who wants an internal chatbot to query their proprietary HR policy PDFs.
#RAG
#Vector Databases
#LLMs
#System Architecture
Machine Learning Engineer
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Technical
•
medium
When would you choose to fine-tune an open-source LLM (like Llama 3) versus using a RAG approach with a commercial API (like GPT-4)?
#LLMs
#Fine-tuning
#RAG
#Model Selection
Machine Learning Engineer
•
Technical
•
hard
What is LoRA (Low-Rank Adaptation) and why has it become the standard for fine-tuning Large Language Models in enterprise settings?
#PEFT
#LoRA
#LLM Fine-tuning
Machine Learning Engineer
•
Technical
•
medium
You are processing 100-page legal contracts using an LLM, but you are hitting the context window token limit. What strategies do you use to handle this?
#NLP
#Context Windows
#Chunking
Difficulty Radar
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Always explain your thought process before writing code or drawing architecture.