Sarvam AI is India's most prominent speech and language AI startup, building Indic language models, ASR (automatic speech recognition), and TTS (text-to-speech) technology. Headquartered in Bengaluru, Sarvam AI works on models that understand and generate Hindi, Tamil, Telugu, Kannada, Bengali, and other Indian languages at a level that general-purpose LLMs do not match. If you are a ML engineer, backend engineer, or researcher interested in Indic AI, Sarvam AI is one of the most technically ambitious and high-impact places to work in India. This guide covers the interview process, what Sarvam AI looks for, and how to prepare.
The Sarvam AI hiring process — what to expect
The Sarvam AI interview process typically runs across 4–5 rounds over 2–3 weeks:
1. Resume and portfolio screen: Sarvam AI's recruiting team shortlists based on ML/NLP/speech experience, prior startup or research background, and genuine interest in Indian language technology. A GitHub profile showing NLP or speech projects (fine-tuning a Whisper model, building a transliteration tool, experimenting with IndicBERT or IndicNLP) significantly increases your shortlist probability. If you have published papers on NLP or speech, include them.
2. Technical phone screen (45–60 min): A call with an engineer or researcher covering the fundamentals relevant to your role. For AI/ML roles: transformer architecture, attention mechanisms, how speech-to-text pipelines work, tokenisation for Indic languages (subword vs character-level; why BPE tokenisation handles Hindi/Tamil morphology differently from English). For SWE/backend roles: coding in Python or C++, systems design basics, distributed systems fundamentals.
3. Core technical round (60–90 min): The deepest technical interview. For ML/research roles: expect questions on the transformer attention mechanism in detail, fine-tuning strategies for low-resource languages, ASR model architecture (CTC vs attention-based encoder-decoder), TTS pipeline design, handling code-switching (sentences that mix Hindi and English), multilingual embeddings. For backend/platform roles: distributed systems design, gRPC and low-latency API design, GPU cluster orchestration basics, inference optimisation.
4. Systems design round: Design a speech processing API that handles 1 million concurrent requests per day across 12 Indian languages, or design the data pipeline for collecting and curating 10,000 hours of Indic speech data. Focus on scalability, reliability, latency, and how you handle the specific challenges of Indian languages (script diversity, code-switching, dialect variation).
5. Founder or leadership conversation: A conversation with one of the founders or the head of department. Topics: why Sarvam AI specifically (not just any ML startup), what motivates you about Indian language technology, your biggest technical achievement and what you learned, where you see Indic AI going in 5 years. This round is as much about values and mission alignment as technical depth.
What Sarvam AI interviewers look for
Based on what is known about Sarvam AI's engineering and research culture, these are the qualities that stand out in their interviews:
1. Genuine interest in Indic language technology: Sarvam AI is a mission-driven company working on a hard, important problem. Interviewers notice the difference between candidates who have studied Indic NLP challenges (why Hindi morphology is harder than English, what makes ASR for Kannada difficult) and those who have not. Do your homework on the Indic language AI landscape before the interview.
2. Depth over breadth in ML/speech: Sarvam AI works on specialised, research-grade problems. They prefer candidates with deep expertise in one area (ASR, TTS, language modelling, or speech signal processing) over generalists who know a little of everything. Be prepared to go very deep on one or two topics.
3. First-principles thinking: Expect questions that probe whether you understand why things work, not just how to use them. 'Why does CTC work for ASR?' 'Why do Indic language tokenisers need to handle Unicode normalisation?' 'What happens to attention scores when the input language has very long compound words (as in Tamil)?'
4. Bias toward building: Sarvam AI moves fast. They value engineers who have built real systems under constraints, not only researchers who have run experiments. Even for research roles, showing that your work shipped into a product or an open-source release carries weight.
How to prepare for a Sarvam AI interview
Targeted preparation for Sarvam AI roles:
1. Understand transformer architecture deeply: Be able to explain multi-head self-attention (Q, K, V matrices, scaled dot-product attention, why multiple heads), positional encoding, the encoder-decoder structure, why layer normalisation is before (pre-LN) or after (post-LN) the attention block in different model variants. Study the Whisper architecture (OpenAI's speech recognition model) as it is foundational for speech AI discussions.
2. Study Indic language NLP specifically: Read about: the IndicNLP Library, IndicBERT, IndicTrans (Indic translation model), AI4Bharat (the research lab that published some of Sarvam AI's early research). Understand: Unicode normalisation for Devanagari and other Indic scripts, subword tokenisation for morphologically rich languages, the challenges of code-switching (mixing of Hindi and English in the same sentence — very common in Indian speech data), and zero-shot vs few-shot transfer across Indic languages.
3. Study ASR and TTS pipelines: For ASR: understand the classic pipeline (feature extraction: MFCCs or mel spectrograms → acoustic model → language model → decoder) vs end-to-end models (Whisper, wav2vec 2.0). For TTS: understand the Tacotron/VITS architecture — text front-end (normalisation, grapheme-to-phoneme), acoustic model (spectrogram prediction), vocoder (converting spectrogram to audio waveform). Know what makes TTS for Indian languages hard: phoneme sets, prosody rules, script-to-sound mapping for Devanagari.
4. Practice system design for AI products: Practise designing: (a) an ASR API serving multiple Indian languages with < 500ms latency, (b) a speech data collection and labelling pipeline, (c) a model serving infrastructure that handles GPU batch inference efficiently. Study how to optimise LLM/speech model inference (quantisation, batching, KV-cache, model parallelism).
5. Prepare your India AI motivation story: Be ready to answer: 'Why Sarvam AI? Why not Google India or a FAANG AI role?' Have a specific, genuine answer that connects to Indic language technology — not just startup equity or growth. Sarvam AI is selective about candidates who share the mission, not just those who want a good AI job.