Chandrashekhar Bhujbal
Ai Ml Data Operations Lead Llm Evaluation Mechanical Turk Api @Upwork
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WORK HISTORY
Ai Ml Data Operations Lead Llm Evaluation Mechanical Turk Api @Upwork
Pune, IN
Top Rated Plus with 100% Job Success - Senior Data Engineer & AI Data Specialist - Mechanical Turk API - RLHF
ABOUT CHANDRASHEKHAR BHUJBAL
17+ years of experience across AI/ML data operations, large-scale data processing, and web technologiesDeep expertise in Amazon Mechanical Turk (MTurk) — API automation, campaign design, workforce management, QA, and large-volume executionExtensive work in AI data collection, annotation, labeling, and evaluation for ML models and LLMsStrong experience in LLM evaluation, RLHF-style workflows, prompt engineering, and AI output quality & safety reviewHands-on with large-scale web scraping, OSINT-style research, and complex data sourcingAdvanced experience in PDF and document extraction (legal, financial, government, enterprise documents at scale)Skilled in data cleaning, normalization, schema mapping, and quality assurance for AI/analytics pipelinesBackground in search evaluation, AI response rating, and model performance assessmentTechnical exposure to Python automation, scraping frameworks, and AI-enabled toolingExperience building and supporting custom web tools and internal systems (React.js, modern web stacks)Proven ability to design human-in-the-loop systems combining automation with manual QAFounder / independent operator with a strong operations and delivery mindsetTrusted partner for US-based clients, known for reliability, ownership, and long-term collaboration
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