I design and build secure, test-driven backend systems with a strong focus on reliability, verification, and financial infrastructure.
My engineering approach is centered around clean architecture, strong unit testing, and maintainable system design. I specialize in Java and Python backend development, quality assurance through Test-Driven Development (TDD), and infrastructure-level work involving Docker and distributed systems.
I am deeply focused on Bitcoin and Lightning Network development, working with LND, gRPC integrations, and blockchain-based application architecture. My goal is to contribute to secure, scalable financial systems powered by decentralized technologies.
- 🌍 I'm based in Johannesburg, South Africa
- ✉️ You can contact me at zondimacdonaldn@gmail.com
- 🧠 I'm currently learning Advanced Lightning Network architecture Bitcoin protocol internals Distributed systems design Secure financial backend engineering
- 💬 Ask me about I believe financial infrastructure should be secure, transparent, and verifiable. I build systems with that principle in mind.
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