Principal Linguistic Engineer

6 days ago


Noida, India Infogain Full time

Principal Linguistic Engineer – Hindi (ASR/TTS/NLU)Location: Infogain BengaluruExperience: 10–15+ yearsLanguage Focus: Hindi (native-level proficiency)Role OverviewThe Principal Linguistic Engineer will serve as the senior-most Hindi linguistics expert, responsible for designing and guiding linguistic frameworks across ASR, TTS, and NLU systems. This role drives phonological modeling, linguistic rule development, evaluation frameworks, and in-depth diagnostics for large-scale AI/ML language technologies.Key Responsibilities- Lead linguistic architecture for Hindi across speech and language processing workflows.- Define Hindi phonological rules such as schwa deletion, aspiration patterns, nasalization, vowel lengthening, and retroflex–dental contrasts.- Develop pronunciation lexicons, grapheme-to-phoneme (G2P) rules, and prosody/intonation guidelines.- Conduct deep error diagnostics for Hindi ASR outputs, TTS naturalness, and NLU parsing.- Build golden evaluation sets and adversarial datasets.- Review complex annotation and evaluation cases for linguistic correctness.- Mentor Lead and Senior Linguistic Engineers; conduct technical trainings.- Collaborate with engineering and research teams to drive model improvements.Required Skills- Native-level Hindi proficiency with strong academic or applied linguistics background.- Advanced understanding of Hindi phonology, morphology (लिंग, वचन, कारक), syntax, semantics.- Experience in ASR/TTS/NLU linguistic pipeline design.- Knowledge of code-mixing patterns (Hindi–English), transliteration, and dialect variations.Hands-on experience with Praat, MFA, ASR scoring tools, annotation/evaluation tools.



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