Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Abhinav Tiwari, an AI Data Specialist with 5+ years of experience across freelance and contract roles in speech, NLP, and multimodal AI projects. I specialize in Hindi audio/video data collection, annotation, transcription QA, and LLM prompt-response evaluation, contributing to datasets used in speech recognition, conversational AI, and multimodal systems. I bring a detail-oriented approach and a practical understanding of how real-world multimodal AI systems are trained, evaluated, and refined using human-generated data. I excel at building reliable data pipelines, maintaining linguistic and cultural context, and collaborating with cross-functional teams to ship robust AI solutions.…Hi, I'm Abhinav Tiwari, an AI Data Specialist with 5+ years of experience across freelance and contract roles in speech, NLP, and multimodal AI projects. I specialize in Hindi audio/video data collection, annotation, transcription QA, and LLM prompt-response evaluation, contributing to datasets used in speech recognition, conversational AI, and multimodal systems. I bring a detail-oriented approach and a practical understanding of how real-world multimodal AI systems are trained, evaluated, and refined using human-generated data. I excel at building reliable data pipelines, maintaining linguistic and cultural context, and collaborating with cross-functional teams to ship robust AI solutions.

ABHINAV TIWARI

AI Engineer, AI Prompt Engineer, Data Annotator, +1





Hi, I'm Abhinav Tiwari, an AI Data Specialist with 5+ years of experience across freelance and contract roles in speech, NLP, and multimodal AI projects. I specialize in Hindi audio/video data collection, annotation, transcription QA, and LLM prompt-response evaluation, contributing to datasets used in speech recognition, conversational AI, and multimodal systems. I bring a detail-oriented approach and a practical understanding of how real-world multimodal AI systems are trained, evaluated, and refined using human-generated data. I excel at building reliable data pipelines, maintaining linguistic and cultural context, and collaborating with cross-functional teams to ship robust AI solutions.…Hi, I'm Abhinav Tiwari, an AI Data Specialist with 5+ years of experience across freelance and contract roles in speech, NLP, and multimodal AI projects. I specialize in Hindi audio/video data collection, annotation, transcription QA, and LLM prompt-response evaluation, contributing to datasets used in speech recognition, conversational AI, and multimodal systems. I bring a detail-oriented approach and a practical understanding of how real-world multimodal AI systems are trained, evaluated, and refined using human-generated data. I excel at building reliable data pipelines, maintaining linguistic and cultural context, and collaborating with cross-functional teams to ship robust AI solutions.

Available to hire

Hi, I’m Abhinav Tiwari, an AI Data Specialist with 5+ years of experience across freelance and contract roles in speech, NLP, and multimodal AI projects. I specialize in Hindi audio/video data collection, annotation, transcription QA, and LLM prompt-response evaluation, contributing to datasets used in speech recognition, conversational AI, and multimodal systems.

I bring a detail-oriented approach and a practical understanding of how real-world multimodal AI systems are trained, evaluated, and refined using human-generated data. I excel at building reliable data pipelines, maintaining linguistic and cultural context, and collaborating with cross-functional teams to ship robust AI solutions.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Beginner

Language

Hindi

Fluent

English

Fluent

Work Experience

AI Data Contributor – Multimodal & Egocentric Video Recording at Visora AI

January 1, 2016 - Present

Record egocentric (first-person) video datasets across real-world scenarios including household chores, kitchen/food prep, salon visits, outdoor urban/nature environments, sports, and indoor public spaces. Capture high-quality task-based video data aligned with multimodal AI training requirements. Perform structured video game screen recordings across multiple ongoing collection projects. Provide detailed feedback and annotations to improve dataset usability and model performance. Ensure adherence to recording standards such as framing, motion consistency, lighting, and contextual clarity. Handle multiple parallel projects with tight deadlines and evolving instructions. Re-record and refine submissions based on QA feedback.

AI Data Annotator & AV Recordist at Micro1

January 1, 2026 - Present

Perform AV recording tasks for multimodal AI training. Record Hindi audio aligned with visual prompts and scenarios. Maintain consistency in tone, pronunciation, and pacing. Ensure clean recordings meeting strict quality benchmarks. Re-record based on QA feedback.

Multimodal AI Data Annotator at Innodata

November 1, 2025 - Present

Annotate text, audio, image, and video datasets. Handle complex edge cases across multiple modalities. Validate data accuracy and internal consistency. Deliver structured datasets for model training pipelines.

Prompt & Response Writer (Hindi) at Mercor

January 1, 2026 - Present

Create high-quality Hindi prompts and responses for LLM training. Ensure linguistic correctness and natural phrasing. Follow strict safety and evaluation guidelines. Design prompts testing reasoning and comprehension. Improve outputs based on reviewer feedback.

QA Lead – Hindi Audio & Dialect Projects at Appen

July 1, 2025 - Present

Lead QA for large-scale Hindi voice datasets. Review pronunciation, tone, pacing, and clarity. Identify recurring issues and provide corrective feedback. Maintain consistency across regional accents. Track quality trends and documentation.

AI Data Specialist – Speech & Multimodal QA at Invisible AI

July 1, 2025 - Present

Perform QA across speech, audio, image, and video datasets. Validate multimodal samples against quality benchmarks. Evaluate emotional accuracy and delivery in voice data. Resolve complex edge cases with QA teams.

AI Evaluator & Linguistic QA Specialist at RWS (Meta Projects)

January 1, 2024 - Present

Evaluate AI-generated Hindi content for grammar, tone, and fluency. Assess conversational relevance and coherence. Flag inconsistencies and hallucinations. Support multilingual model improvements.

Audio Recording Specialist (Hindi) at Babble Audio

January 1, 2024 - Present

Record high-quality Hindi audio for AI systems. Follow strict pronunciation and delivery guidelines. Ensure consistency across varied scenarios.

Voice Talent & Audio Contributor at Voices.com

January 1, 2024 - Present

Record Hindi voice content for AI and commercial datasets. Adapt tone based on script requirements. Maintain professional recording standards.

Prompt Evaluator – LLM / NLP Projects at Alignerr (via Labelbox)

January 1, 2024 - Present

Evaluate LLM outputs using RLHF-style criteria. Assess coherence, instruction adherence, and tone. Identify weak reasoning and hallucinations. Provide structured improvement feedback.

Localization Expert (Hindi) & Annotator at Sama

November 1, 2024 - February 1, 2025

Validate translations for linguistic and cultural accuracy. Review localized datasets. Ensure consistency with project guidelines.

AI Training & QA Specialist at CrowdGen

June 1, 2023 - Present

Annotate and QA datasets across NLP, speech, and CV tasks. Work on classification, misinformation detection, and translation QA. Apply strict annotation standards.