Bilva Sai Eswar Maddi

Building BREW-N-FILL® – The OS for the Global Coffee Chain | RAG LLM Chatbots with LangChain | Apigee Developer & Architect – Google Apigee API Gateway & Management | Intern, IIT Madras | Contact me

  • India:Hyderabad | USA:New York

  • +1 848-349-3204

  • contact@bilvasaieswarmaddi.com

Hello! I'm a

Apigee Engineer Freelancer LLM Engineer Stock Trader

Biography

I build products that work in the real world – from coffee brands sold in local stores to AI systems powering enterprise platforms.

At 19, I launched BREW-N-FILL® and personally onboarded with local retailers. That taught me business isn't about ideas – it's about execution, compliance, and trust.

Now I bring that same mindset to technology: I've architected API platforms on Google Apigee, built RAG-powered LLM chatbots with LangChain, and shipped production systems that handle real traffic.

Education

  • Indiana Wesleyan University (USA)

    Master's Degree in Data Analytics

  • IIT MADRAS (INDIA)

    Research Internship

  • G.Pulla Reddy Engineering College (INDIA)

    Bachelor's Degree in Computer Science and Business Systems

  • SMVM Polytechnic (INDIA)

    Diploma in Applied Electronics and Instrumentation Engineering

  • Akshara Geetha Vidhya Nikeethan (INDIA)

    Schooling

Experience

  • BREW-N-FILL ® INDIA | USA

    Founder & CEO

    Building BREW-N-FILL® – The OS for the Global Coffee Chain

  • LLM Engineer | LangChain | Vector DB |Tokenization

    Developed a source-grounded LLM copilot for Apigee utilizing LangChain and a vector DB. Enhanced root cause analysis for critical issues like 504/TLS/Quota/OAuth by correlating data.

  • Apigee Hybrid Architect | API Platform & Cloud

    Apigee Architect designing and running multi-region Apigee Hybrid on AKS – owning topology, security, DR, and cost-efficient scaling so mission-critical APIs stay fast, compliant, and always-on.Apigee Architect designing and running multi-region Apigee Hybrid on AKS – owning topology, security, DR, and cost-efficient scaling so mission-critical APIs stay fast, compliant, and always-on.

  • Apigee OPDK Developer | API Engineering & Operations

    Apigee Developer leading API operations and incident response on OPDK – building and tuning secure, low-latency proxies, analytics, and runbooks that keep customer-facing APIs reliable at scale.

  • Makers of Milkshakes Pvt. Ltd

    Business Developement Manager | Growth & Franchise Expansion

    Led market research and franchise-focused client acquisition, turning on-ground insights into new locations, stronger relationships, and smarter expansion decisions.

  • Makers of Milkshakes Pvt. Ltd

    Web Developer | Digital Experience & Internal Tools

      Built fast, reliable web experiences that turned ideas into live products and gave teams real-time visibility into their business.

  • Makers of Milkshakes Pvt. Ltd

    Research Intern | Market Research & Strategy

      Turned raw field data into clear, decision-ready insights on markets, costs, and customer behavior to guide smarter growth bets.

  • IIT Madras

    Research Intern | Entrepreneurship & Data

      Turned nationwide survey data into actionable insights for empowering women entrepreneurs in India by building end-to-end data pipelines and supporting the core research team.

  • Google Developer Student Clubs

    Team Lead - Flutter Developer

    Led the App Developer team to build real-world applications, run high-leverage workshops and hackathons, and use SEO + digital outreach to grow a serious, product-focused student developer ecosystem.

  • IBM

    Team Lead - AI & NLP Chatbot

    Led the development of LISTNER, an AI life-assistance chatbot on WhatsApp and Telegram that uses NLP, sentiment analysis, and silent distress codes to turn high-risk conversations into real-time alerts for support teams.

  • SMART INDIA HACKATHON

    Team Lead - Data & Visualization

    Led the design and build of a groundwater data interpretation platform (web + Tableau) that turns raw hydrology data into interactive decision dashboards for sustainable water management.

  • SciAstra

    Physics Mentor (IISER/NISER Track)

    Mentored high-potential students for IISER/NISER tracks, translating advanced physics into clear problem-solving frameworks and contributing to a fast-paced, research-driven startup environment.

  • Rashtriya Swayamsevak Sangh

    Team Lead

    Lead and coordinate youth and community activities, mentor participants, and organize programs and service initiatives with a focus on discipline, values, and teamwork.

Skills

Google Apigee LLM LangChain RAG Pipelines Python Kubernetes GCP Azure (AKS) Tableau CI/CD OAuth 2.0 / JWT REST APIs Docker Grafana MongoDB MERN Stack

Worked With

IBM
Sciastra
Makers of Milkshakes
IIT Madras
Client 5
Client 6
Client 7
Client 8
IBM
Sciastra
Makers of Milkshakes
IIT Madras
Client 5
Client 6
Client 7
Client 8

Contact Me