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Badial5 (Calvin Williams) · GitHub

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Badial5/README.md

👨🏾‍💻 Executive Summary

Frontend & Full-Stack Engineer with 3+ years of experience engineering high-performance web applications, responsive commerce platforms, and offline-first mobile tools.

  • 🌍 Location & Timezone: Ghana 🇬🇭 (GMT / UTC+0) — Seamless working overlap with US, UK, European, and Pan-African teams.
  • ⚡ Engineering Core: Strict TypeScript safety, performant state caching (TanStack Query), modular UI architecture, and zero-compromise UX.
  • 📱 Mobile & Hardware: React Native (Expo) mobile apps and browser hardware integrations (Web Serial API & ESC/POS thermal printing).
  • 💼 Open to: Full-time Remote roles, high-impact contract engineering, and frontend consulting.

🛠️ Tech Stack & Tooling

Frontend & Mobile
State & Architecture
Backend & APIs
DevOps & Quality

💼 Featured Projects & Live Demos

⚖️ Legal Diary (Mobile App)

Offline-First Judicial Case Management

  • React Native (Expo SDK 57) mobile app with on-device OCR text recognition (Google ML Kit).
  • Automated procedural deadline engine per civil procedure rules (C.I. 47) with cascading reminders.
  • Hardware-backed encrypted docket vault running 100% offline-first.

React Native Expo NativeWind Zustand ML Kit

💰 Microfinance & Susu Savings

Grassroots Digital Lending Platform

  • Full-featured micro-lending web app with daily Susu contribution logging and balance reconciliation.
  • Dynamic loan amortization calculator with sub-50ms optimistic state updates via TanStack Query.
  • Mobile-first responsive architecture scoring 98/100 on Lighthouse.

React 19 TypeScript TanStack Query Tailwind CSS

🧾 NovaTrade Smart Receipt & POS Studio

Hardware POS & Receipt Generation Engine

  • Direct ESC/POS thermal printer hardware integration using the native Web Serial API without third-party print drivers.
  • Live WYSIWYG split-screen preview supporting A4, 80mm, and 58mm roll layouts.
  • Dynamic currency to words conversion, PDF export, and full offline PWA capability.

React TypeScript Tailwind CSS Web Serial API PWA

🌐 RanstadPlus Global Trade Platform

Commercial Agricultural Export Portal

  • Modern trade catalog engineered with Next.js App Router for international commodity buyers.
  • Automated product-tagged inquiry dispatcher using client-side EmailJS integration.
  • Optimized static page generation with zero server overhead.

Next.js TypeScript EmailJS Tailwind CSS

📊 GitHub Activity & Real-Time Stats


🤝 Let's Connect

I am actively open to Full-Time Remote Roles, Contract Roles, and Consulting Opportunities worldwide.

⚡ Engineered for performance, reliability, and clean code. Built by Calvin Williams.

Pinned Loading

  1. onlinemusicplayer onlinemusicplayer Public

    JavaScript

  2. calvin-clothing calvin-clothing Public

    JavaScript

  3. Tailwind-page-created-by-CW Tailwind-page-created-by-CW Public

    Practicing my hand-on Tailwind

    HTML

  4. canvaslite-clone canvaslite-clone Public

    Live View

    CSS

  5. filmpire filmpire Public

    CSS

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