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Sourav Das

@souravdas7

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I improve AI/ML data quality and operations analytics through SQL, rigorous QA, and audit-ready workflows.

India

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What I'm looking for

I'm looking to apply AI/ML data operations, data quality, SQL analytics, and audit-ready process improvement to high-impact data workflows.

I've driven AI/ML data integrity, SQL analytics, and audit compliance across Amazon operations, processing high-volume datasets with rigorous quality standards.

At Amazon, I evaluated more than 1 million multimodal annotation assets for Amazon Nova at 98%+ benchmark accuracy. I benchmarked LLM prompts and responses for human preference, safety, truthfulness, and instruction following to improve RLHF data quality.

I also built SQL-driven logistics analysis and transit-time reporting that improved KPI tracking for North American fulfillment decisions, while maintaining 100% resolution across cross-border escalations. In HR Operations, I maintained a 100% compliance record and created audit-ready documentation workflows.

Earlier at National Health Mission, I validated and governed district healthcare data, identifying anomalies before centralized transmission to strengthen public-health analytics.

Experience

Work history, roles, and key accomplishments

AI/ML Data Operations Analyst

Amazon

Mar 2025 - Nov 2025 (8 months)

Spearheaded quality evaluation pipelines for Amazon Nova foundation models, processing over 1,000,000 multimodal data annotation assets at 98%+ accuracy. Benchmarked LLM prompts and model responses to refine RLHF data quality and served as QA SME.

LLM Evaluation Multimodal Annotation RLHF Prompt And Response Ranking JSON Schema Validation QA Review Amazon NOVA Amazon Bedrock Sagemaker

Logistics & Supply Chain Analyst

Amazon

Oct 2023 - Oct 2024 (1 year)

Authored custom SQL queries to analyze complex logistics datasets and uncover operational bottlenecks. Engineered transit-time reporting frameworks and maintained SLA integrity across cross-border escalations.

SQL Data Analysis KPI Reporting Jira Salesforce Supply Chain Analytics SLA Management

HR Operations Analyst

Amazon

Feb 2022 - Feb 2023 (1 year)

Governed workforce data in Salesforce CRM, maintaining 100% compliance across audits. Diagnosed payroll discrepancies and delivered 100% on-time resolution for global employee lifecycle requests.

Salesforce Data Governance Compliance Payroll Reconciliation Stakeholder Management

Data Management Associate

National Health Mission

May 2021 - Feb 2022 (9 months)

Orchestrated the ingest, validation, and governance of high-volume district healthcare data within a centralized government DBMS. Identified and purged data anomalies to enhance public health analytics.

Data Validation Data Governance DBMS Anomaly Detection