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Nilesh Mehta

@nileshmehta

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I build forecasting models and GenAI systems that turn operational data into faster, measurable decisions.

India

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What I'm looking for

I'm looking to build production AI, machine learning, and GenAI systems that solve measurable business problems, combining data analysis, forecasting, RAG, and stakeholder collaboration.

I've built forecasting and GenAI systems that turn operational data and documentation into practical decision tools.

At Arcgate, I deployed a linear regression model for technical-support ticket forecasting to inform staffing plans. I also shipped a LangChain, FAISS, and OpenAI-powered RAG search system that reduced documentation lookup time by approximately 60%.

I created automated document summarization workflows, investigated production defects, mapped business processes, and translated stakeholder requirements into BRD-style specifications. I also mentored junior analysts on data-driven troubleshooting and documentation standards.

More recently at PearlThought, I built code analysis and translation agents for legacy-code modernization, using AST parsing and LLMs to transform codebases into TypeScript, Java, and C++. My work spans Python, machine learning, NLP, vector search, and deployable AI pipelines.

Experience

Work history, roles, and key accomplishments

AI / ML Engineer

PearlThought

Jan 2026 - Feb 2026 (1 month)

Contributed to a Legacy Code Modernization Assistant, building a Code Analyzer Agent using AST parsing and a Translation Agent leveraging LLMs to convert legacy codebases into TypeScript, Java, and C++. Designed modular pipelines for scalable batch processing.

Python AST LLM TypeScript Java C++Pipeline Design

Senior Analyst

Arcgate

Apr 2022 - Feb 2026 (3 years 10 months)

Built and deployed a linear regression forecasting model for technical-support ticket volumes, and designed an LLM-powered RAG system for semantic search that reduced lookup time by ~60%. Conducted root cause analysis and mentored junior analysts.

Python Lang Chain Faiss OpenAI RAG Linear Regression Root Cause Analysis Mentorship

Research Analyst

Arcgate

Jan 2021 - Mar 2022 (1 year 2 months)

Analyzed operational datasets in Excel and internal databases to surface trends and anomalies, ran data validation processes, and partnered with departments to consolidate findings into decision-ready deliverables.

Excel Data Analysis Data Validation Reporting

Business Associate

The Connections ITES Business Pvt. Ltd.

Dec 2018 - Oct 2019 (10 months)

Analyzed customer interaction and campaign data to inform outbound marketing strategy and improve lead-conversion rates. Maintained structured records of customer transactions and campaign outcomes for performance tracking.

Data Analysis Campaign Management Lead Conversion Record keeping