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Sagnik ChakrabortySC
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Sagnik Chakraborty

@sagnikchakraborty

LLM and ML Engineer specializing in RAG systems, document intelligence, and production NLP pipelines.

India
Message

What I'm looking for

I’m looking for a role where I can build production LLM/NLP systems—especially RAG and document intelligence pipelines—working with hybrid search, strong ML engineering practices, and teams that value reliable deployment and measurable accuracy.

I’m an LLM and ML Engineer with 1+ year of production experience building document intelligence pipelines, RAG systems, and Transformer-based NLP models for financial and compliance applications. I’ve delivered systems securing 250,000+ records, supporting 15+ institution formats, and reaching 98% entity recognition accuracy.

I also lead small engineering teams and move ML solutions from prototype to production—covering PII masking with redaction/substitution/synthetic data generation, hybrid retrieval (BM25 + LLM re-ranking), and end-to-end Transformer fine-tuning. My focus is on reliable architectures that reduce reconciliation time and accelerate onboarding.

Experience

Work history, roles, and key accomplishments

QU
Current

LLM and ML Engineer

Quantyc.ai

Feb 2025 - Present (1 year 4 months)

Built a RAG-powered bank statement parsing system using LLMs, standardizing 15+ Indonesian institution formats into 4 types and cutting client onboarding time by 60%. Led a team to deliver an enterprise PII masking pipeline securing 250,000+ records and achieving 98% entity recognition accuracy.

Education

Degrees, certifications, and relevant coursework

TB

Techno International Batanagar

Bachelor of Technology, Computer Science and Engineering

2020 - 2024

Grade: GPA: 8.75 / 10

Bachelor of Technology in Computer Science and Engineering (2020–2024) with a GPA of 8.75/10.

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