Open to Remote Contracts Worldwide

Hi, I'm
John Daniel
AI/ML Developer

Specialising in LLM-powered applications, RAG pipelines, NLP systems, and Agentic AI solutions that turn unstructured data into real business value.

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18+

Years in Tech

Years in AI/ML

Certifications

About Me

Bridging Enterprise Engineering & AI

I am an AI/ML Developer and Prompt Engineer with 3+ years of production AI experience built on 15+ years of enterprise engineering. I specialise in building LLM-powered applications, RAG pipelines, NLP systems, and Agentic AI workflows that solve real business problems.

My enterprise background across DXC, HSBC, Accenture, HCL, and L&T Infotech brings production discipline, reliability, and structured thinking to every AI solution I deliver.

Available globally for remote contracts, freelance projects, and consulting. Founder of ZenithQuest — an AI micro-agency helping businesses extract intelligence from unstructured text.

Hire Me

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Specialisation

LLMs · RAG Pipelines · NLP · Agentic AI · Azure ML · Prompt Engineering

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Location

Hyderabad, India · Open to Remote Worldwide · LinkedIn Top AI Contributor

Technical Skills

What I Work With

Production-grade AI engineering across the full stack.

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LLM & Generative AI

GPT-3.5GPT-4oMeta LLaMA-3 RAG PipelinesLangChain LCELFAISS Vector Store Prompt EngineeringStructured Output Gen.LLM Evaluation

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NLP & Machine Learning

Multi-Label ClassificationTF-IDFHashingVectorizer Logistic RegressionClassifierChainXGBoost Random ForestAda-002 EmbeddingsThreshold Tuning GridSearchCVARIMApytest Validation

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Deployment & APIs

FastAPIStreamlitREST API cloudpicklePostmanUvicorn pytestJSON APIs

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Programming & Tools

PythonPandasNumPy Scikit-learnLangChainJupyter GitHubRegexSQLTableau

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Cloud Platforms

Azure ML PipelinesAzure Managed Endpoints Azure OpenAIAzure Blob Storage AWS (Certified)S3EC2

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Enterprise Background

COBOLJCLDB2 VSAMBFSI DomainOnsite UK Production SystemsSystem Design

Portfolio

What I've Built

Production-grade AI systems with real demos — not just tutorials.

🆕 Latest Project

Multi-Agent Document Intelligence Pipeline

4 specialized AI agents that extract, validate, and report on contract fields automatically in under 60 seconds. FAISS vector search + GPT-3.5 extraction + ReportLab PDF + Agent 4 audit trail. Streamlit UI + FastAPI REST API.

LangChainFAISSGPT-3.5FastAPIStreamlitReportLabAgentic AI

GitHub Watch Demo

⭐ Featured

RAG-Powered Document Intelligence Chatbot

End-to-end RAG pipeline answering natural language questions from any PDF. Zero hallucination design — admits when answer is not in the document. Source citations with every answer. FastAPI + Streamlit.

RAGLangChain LCELFAISSAda-002GPT-3.5FastAPI

GitHub Watch Demo

🏆 Production Grade

Leadership Intelligence Copilot

Production NLP system classifying leadership reflections into 25 themes using multi-label classification. Human-in-the-loop Streamlit UI. FastAPI scoring API with real-time JSON output.

TF-IDFClassifierChainLogistic RegressionFastAPIAzure ML

GitHub Watch Demo

📊 Data Chat

LangChain CSV Chatbot

Conversational interface for CSV and Excel data using LangChain and GPT-4. Ask plain English questions — CLI and Streamlit drag-and-drop web interface. Full demo on YouTube.

LangChainGPT-4StreamlitPandasPython

GitHub Watch Demo

🤖 Agentic AI

Agentic AI Data Cleaning Pipeline

GPT-powered agent that autonomously handles data preprocessing — missing values, outliers, categorical encoding, and type correction. Produces a transparent reasoning report explaining every decision.

Agentic AIGPT-4PandasScikit-learnPython

GitHub Watch Demo

Services & Side Hustles

Beyond AI Engineering

Additional services I offer alongside AI development — growing this space actively.

In addition to AI/ML engineering, I take on a range of freelance and digital work. Whether you need accurate transcription, professional translation, or AI-powered content workflows — I bring the same attention to detail from my engineering background. This section grows as I add new services and digital products.

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YouTube Transcription

Accurate transcription of YouTube videos, podcasts, webinars, and audio content. Clean, readable output with timestamps. Fast turnaround using AI-assisted + human review workflow.

TranscriptionYouTubeAudio to TextWhisper AI

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Translation Services

Professional translation between English and other languages. Documents, subtitles, scripts, and business content. Accuracy-focused with cultural context preserved.

TranslationSubtitlesDocumentsBusiness Content

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AI Content Workflows

Custom AI-powered workflows for content creation, summarisation, and automation. Turn hours of manual content work into minutes using LLM pipelines built specifically for your use case.

LLM PipelinesContent AIAutomationSummarisation

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Lyrics to PPT (SaaS)

A live web tool that turns song lyrics into ready-to-project PowerPoint slides in seconds. Built for church media teams who prepare slides every week — and just as useful for karaoke nights, events, schools, and any group that needs lyrics on screen. Paste, generate, download.

SaaSAutomationLive ToolPython

Launch Tool →

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Coming Soon

Digital products and automation tools are in development. Subscribe or connect on LinkedIn to be notified when new offerings launch.

Digital ProductsAI ToolsComing Soon

Interested in any of these services? Let's talk.

Get In Touch

Journey

Experience & Education

18+ years of software engineering evolved into production AI/ML development.

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Nov 2025 — Present

Data Scientist (Contract)

Mercor — Remote

Built deterministic ML and time-series evaluation workflows (Random Forest, ARIMA 3,1,2) for AI benchmarking tasks.
Implemented pytest-based validation frameworks to enforce structured outputs and reproducible model execution.
Developed structured Jupyter pipelines aligned with LLM evaluation and test-driven model validation requirements.

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Jul 2024 — Oct 2025

AI Developer

Adeption — Pune (Remote)

Domain: AI for Learning & Leadership Development. Built 6 production AI systems including semantic recommendation engine (Ada-002 embeddings, ~90% manual effort reduction), multi-label NLP classification pipeline (10 themes, FastAPI), multi-model LLM feedback pipelines (GPT-3.5, GPT-4o, LLaMA-3), and Agentic AI auto-retraining workflows. All deployed via Azure ML and FastAPI.

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Aug 2023 — Apr 2024

Technical Design Head

Be10X.in — Remote

Led technical design for AI-enabled EdTech platform. Built Random Forest personalisation, hybrid recommendation engine, ChatGPT content generator, and Whisper speech-to-text integration. Deployed on AWS.

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Feb 2022 — Mar 2023

Freelance Data Scientist

Independent — Remote

Built POC ML models for education-focused clients. Consulted on prompt design, AI-enabled BI dashboards, and statistical analysis. Deployed models on AWS infrastructure.

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Dec 2005 — 2022

Senior Mainframe Developer

L&T Infotech · Accenture · HSBC · HCL · DXC Technologies

17 years of enterprise mainframe development across BFSI clients (MetLife, Zurich, Citi, HSBC, St. Paul). Technologies: COBOL, JCL, DB2, VSAM. Includes onsite UK experience. This background brings enterprise-grade production discipline directly into AI engineering work.

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2000 — 2002

M.S. Information Technology & Electronics Communication

Manonmaniam Sundaranar University, Tamil Nadu

Post-graduate degree in IT and Electronics Communication. Foundation for a career spanning enterprise engineering and AI/ML development.