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50 followers · 103 following

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx2Achievement: YOLO

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx2Achievement: YOLO

Highlights

  • Pro

Organizations

@KAYABA-LABS

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mhiskall282/README.md

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👨‍💻 About Me

const john: SoftwareEngineer = {
  name:       "John Okyere",
  location:   "Ghana, West Africa 🇬🇭",
  role:       "Software Engineer",
  focus:      ["Blockchain", "Cloud Engineering", "Backend Systems", "Cybersecurity"],
  exploring:  ["Zero-Knowledge Proofs", "AI + Blockchain", "Microservice Architecture"],
  portfolio:  "https://johnokyere.vercel.app",
  available:  true, // Open to opportunities!
  funFact:    "There are 10 types of people — those who understand binary and those who don't.",
};

I'm a passionate software engineer building solutions that merge technology, innovation, and impact. From smart contracts on Ethereum to serverless APIs on AWS, I bridge the gap between cutting-edge research and real-world execution. I'm also a strong advocate for tech education and digital empowerment across Africa.

🚀 What I Do

🔗 Blockchain & Web3

  • Smart Contract Development (Solidity, Rust)

  • DeFi Protocol Design & Auditing

  • Zero-Knowledge Proof (ZK) Systems

  • NFT & Token Standards (ERC-20, ERC-721)

  • Multi-chain Architecture

☁️ Cloud & DevOps

  • AWS & GCP Infrastructure Design

  • Serverless Architecture (Lambda, Cloud Functions)

  • Infrastructure as Code (Terraform, CDK)

  • CI/CD Pipeline Automation

  • Container Orchestration (Docker, Kubernetes)

⚙️ Backend Engineering

  • RESTful & GraphQL API Design

  • Microservices & Event-Driven Systems

  • Database Design (PostgreSQL, MongoDB, Redis)

  • Performance Optimization & Scalability

  • Node.js, Python, Go

🔐 Cybersecurity

  • Smart Contract Security Audits

  • Penetration Testing

  • Threat Modeling & Risk Analysis

  • Secure Coding Practices

  • OWASP Compliance

🧰 Tech Stack

Languages

Solidity TypeScript Python Go Rust JavaScript

Blockchain & Web3

Ethereum Hardhat Web3.js IPFS Chainlink

Cloud & Infrastructure

AWS GCP Terraform Docker Kubernetes

Backend & Databases

Node.js PostgreSQL MongoDB Redis GraphQL

📊 GitHub Stats

GitHub Streak
Activity Graph

🏆 Achievements & Certifications

trophy

🎖️ Certification 🏛️ Issuer 📅 Year
AWS Certified Cloud Professional Amazon Web Services 2024
Certified Blockchain Developer & Specialist ICORBP 2023

🌱 Currently Exploring

🔬 Zero-Knowledge Proofs (ZKPs) for blockchain privacy
🤖 AI + Blockchain integration for trustless ML models  
🏗️ Scalable microservice architectures with event sourcing
📡 Decentralized identity (DID) and self-sovereign identity

💼 Featured Projects

🔗 DeFi Protocol

A decentralized lending protocol with automated interest rate models, flash loan support, and on-chain governance. Built with Solidity + Hardhat.

Stack: Solidity · Hardhat · React · Ethers.js · The Graph

☁️ Serverless API Platform

A highly scalable, event-driven backend platform on AWS with auto-scaling, observability, and zero-downtime deployments using CDK.

Stack: AWS Lambda · API Gateway · DynamoDB · Terraform · Node.js

🔐 ZK Identity System

A privacy-preserving identity verification system using zero-knowledge proofs that allows users to prove attributes without revealing private data.

Stack: Circom · SnarkJS · Solidity · TypeScript

🌍 Africa Tech Platform

An open-source learning platform connecting African developers with mentors, resources, and opportunities in blockchain and cloud engineering.

Stack: Next.js · PostgreSQL · Redis · GCP · Docker

📝 Latest Blog Posts

📡 Connect your blog RSS feed using a GitHub Action like blog-post-workflow to auto-populate this section!

  • 🔐 Understanding Zero-Knowledge Proofs: A Practical Guide
  • ☁️ Serverless Architecture Patterns on AWS for Startups
  • 🔗 Writing Secure Smart Contracts: Common Pitfalls & Best Practices
  • 🌍 The State of Blockchain in West Africa: Opportunities & Challenges

🤝 Let's Connect

I'm open to full-time roles, freelance contracts, and open-source collaboration.
Whether you're building the next DeFi protocol, a cloud-native product, or just want to talk tech — reach out!


Portfolio LinkedIn Email Twitter

"I believe the future of Africa's tech ecosystem lies in decentralization, education, and open collaboration — and I'm building for that future."

— John Okyere 🇬🇭


⭐ If any of my repos helped you or caught your eye — drop a star! It fuels more building. 🚀


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  1. afriID afriID Public

    TypeScript 1

  2. cybersecurity-internship cybersecurity-internship Public

    Cybersecurity internship projects at pinnacle labs

    Python

  3. hospital-it-reporting-system hospital-it-reporting-system Public

    TypeScript 1

  4. roadshow-accra roadshow-accra Public

    Forked from engr-krooozy/AI-Marketing-Content-Gallery

    Build an automated content factory that reads product information from a CSV file, uses Google's Gemini 2.5 Pro model to write compelling marketing descriptions, and then calls the Imagen model to …

  5. Solidity-Mondays Solidity-Mondays Public

    Forked from ETHAccra/Solidity-Mondays

    Blockchain Development Tutorials

  6. trestle-academy-ml trestle-academy-ml Public

    Jupyter Notebook