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joshuatochinwachi/README.md

Hi there, I'm Joshua 👋

Blockchain Data Analyst | Data Engineer | ML Engineer | Full-Stack Developer

I decode blockchain data and build full-stack analytics systems that turn on-chain activity into business insights—helping Web3 teams track performance, predict user behavior, and make data-driven decisions.

📄 My CV | 📊 Dune Portfolio – #1 Analyst on Cardano, Plasma & Ronin blockchains

What I Build

On-chain Analytics & Data Engineering

  • Automated ETL pipelines processing millions of blockchain transactions
  • Real-time dashboards for DeFi, gaming, NFTs, and L1/L2 ecosystems
  • ML models for user behavior, retention prediction, and anomaly detection

Full-Stack Data Applications

  • Production APIs and web apps (FastAPI + Next.js + Dune Analytics)
  • Interactive dashboards processing live blockchain data
  • End-to-end analytics platforms with intelligent caching and real-time updates
  • Cross-platform mobile applications (iOS & Android) with live data feeds, push notifications, native in-app payments (Apple Pay · Google Pay), and subscription lifecycle management synced across platforms (React Native · Expo)

Tech Stack

Core: SQL (PostgreSQL, MSSQL, Snowflake, Trino) · Python · Dune Analytics · Flipside · Machine Learning
Blockchain: Envio Indexer · Ethers.js · Web3.py · Solidity · Rust · RPC Nodes
Backend: FastAPI · Node.js · Express.js · SQLAlchemy · REST/GraphQL · Dune API · CoinGecko API · Playwright · Socket.IO · AsyncIO · Telegram Bot API
Frontend: React · Next.js · TypeScript · React Native · Expo · Streamlit · HTML · CSS · JavaScript · Tailwind CSS
Auth/Payments: Supabase · Stripe · Apple Pay · Google Pay
ML: Scikit-Learn · PyTorch · TensorFlow · XGBoost · LightGBM · Pandas · NumPy
Visualization: Dune's Dashboarding Tool · Power BI · Tableau · Plotly · Matplotlib · Seaborn · Recharts · Excel (VBA, Macros)
Cloud: AWS · Docker · Git · Apache Airflow · Vercel · Railway · Streamlit Cloud

Key Wins

✅ Featured in Dune Digest 17 – Ronin Games analysis reached 1M+ subscribers
✅ #1 Dune Analyst on Cardano, Plasma and Ronin blockchains and earned a public shout-out across all three
✅ Real Impact – My dashboards drove NFT sellouts and 10x token price increases
✅ Endorsed by Jihoz.ron – Co-Founder of Ronin & Axie Infinity; secured major grant
✅ Rewarded with Dune Merch (a rare gift to top builders) and Specially Invited to Dune Con Argentina 2025

Let's Connect

LinkedIn Twitter Telegram Email

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  1. Solana-Game-Signals-and-Predictive-Modelling Solana-Game-Signals-and-Predictive-Modelling Public

    Next-generation analytics & ML-powered churn prediction for Solana gaming. Self-training models predict player churn 14 days in advance. Live dashboard + REST API analyzing 60M+ on-chain transactio…

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  2. HollowScan-Mobile-App HollowScan-Mobile-App Public

    a SaaS that sources sweet products at relatively cheap prices from popular stores in the UK, USA & Canada like: Amazon, eBay, Argos, Lewis, Smyths, Curry’s, Waitrose, Tesco, Costco, Sainsbury’s, Ha…

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  3. Ronin-Ecosystem-Tracker Ronin-Ecosystem-Tracker Public

    Professional analytics web app/dashboard for Ronin blockchain gaming economy with real-time insights, network health monitoring, and comprehensive DeFi/NFT marketplace intelligence.

    Jupyter Notebook 10

  4. MoTZ MoTZ Public

    Real-time blockchain analytics dashboard for Mark of The Zeal ecosystem on Ronin. FastAPI backend with 24hr caching + Next.js 16 frontend with interactive charts.

    TypeScript 9 1

  5. RonHub-Raffle RonHub-Raffle Public

    Cryptographically secure on-chain raffle platform for the Ronin Network — USDC-verified ticket entry, automated blockchain verification, and cryptographic winner selection. Built with Next.js, Node…

    JavaScript 8

  6. RETAIL_SALES_AND_LOGISTICS_OPTIMIZATION_ANALYSIS RETAIL_SALES_AND_LOGISTICS_OPTIMIZATION_ANALYSIS Public

    I analyzed retail data (2022–2023) using Python (ETL) and SQL. Identified top products, regional trends, and sales growth, providing actionable insights to optimize logistics, boost sales, and impr…

    Jupyter Notebook 12