3 Technical Rounds 1 HR Round Should have deep and clear understanding of Deep Learning, Statistics, ML algorithms, Quantization, RNN, CNN, LSTM, GRU, ANN, etc. Basic knowledge of python and Data Structures is a must. Having knowledge about Deep learning frameworks like tensorflow, pytorch etc is a bonus. And should know about basic libraries likenumpy, PIL, matplotlib. As it's a research role, you should learn to quickly understand the new concepts(papers) and implement it.