Johnkingsley Amaechi

I am a software engineer with 6+ years of professional experience building full stack applications, backend systems, and AI powered products across fintech, e-commerce, and healthcare. I have worked with companies ranging from banks processing 50,000+ daily transactions to startups serving 700+ active businesses, and I currently consult independently with clients globally including Fortune 500 companies like DoorDash and Walmart.

My core stack is TypeScript, Node.js, React, Python, and Golang, and I work extensively with AI technologies, including LLM integration, multi-agent systems, MCP servers, RAG pipelines, and voice AI. I have built two of my own AI products from scratch that are live in production with paying users. One is an AI interview platform for software engineers, the other is a conversational invoicing tool built on voice interaction.

Beyond building, I genuinely enjoy teaching. I have mentored 400+ engineers across different levels and backgrounds, and 85% of them went on to receive promotions or salary increases. I have worked with early-career developers who needed help understanding fundamentals, mid-level engineers trying to level up their system design skills, and senior engineers navigating career decisions.

What I offer as a mentor is honest, direct feedback. I will tell you what is actually holding you back, help you build things that work in the real world, and give you the kind of guidance I wish I had earlier in my career. Whether you are trying to land your first role, break into AI development, improve your code quality, or transition into a more senior position, I can help you get there faster.

I am particularly strong in full-stack development, backend architecture, AI agent development, and career growth for software engineers.