Dev

Sydney, NSW, Australia

I build web, mobile, and AI-powered software

Full-stack developer · Sydney, NSW · open to contract & freelance work

What I offer

Full-stack development, AI systems, and technical consulting — scoped to what you actually need.

  • · Direct engagement — you work with me, not an account manager
  • · Based in Sydney; remote-friendly across Australia
  • · Open to contract and freelance work alongside the right full-time roles
Discuss a project →

Recent work

Dashboard with charts and operational metrics

Change management & ML classification

Power Platform app with Dataverse backend, workflow automation, and a fine-tuned classification pipeline that lifted accuracy from 75% to 93% on business text logs.

Power PlatformAzure OpenAIDataversePyTorch
Abstract visualization of AI and neural network connections

Enterprise AI platform

Multi-agent orchestration with conversation hand-off, production RAG pipelines with grounded citations, and SSO-backed backend architecture deployed across business units.

LangChainRAGAzure OpenAIFastAPIMCP
Business documents and workflow planning on a desk

Statement-of-work lifecycle app

Schema-constrained LLM generation with validation guardrails, a GST-aware pricing engine, document automation producing live previews and production .docx files, and CI/CD to Azure.

ReactTypeScriptFastAPIAzurePostgreSQL
View all projects →

Technologies

TypeScriptReact / Next.jsPython / FastAPIAzureLangChain / MCPExpoStripePower Platform

About

Software engineer with a degree in Software Engineering (AI major) and hands-on experience in full-stack development, LLM fine-tuning, and production AI systems on Azure. I turn complex requirements into secure, scalable software — from e-commerce and web apps to RAG pipelines and agent workflows.

Full CV & experience →

Get in touch

Have a project in mind? Let's talk.

Contact me

johnsonpaku.dev@gmail.com