Senior software engineer and independent contractor with 25+ years designing, building, and maintaining reliable production systems — from Rust and Node.js back ends to modern web and mobile front ends. Creator of AI harness kawacode.ai.
Independent, third-party validation of my work — two granted patents at the United States and Japan patent offices.
Web-based visualization and collaborative optimization of electromagnetic-emitter placement — relevant to RF planning, antenna and sensor siting, and telecom and defense coverage design.
A low-noise, privacy-preserving system for real-time collaboration across teams and tools — the foundation of the CodeAwareness developer platform.
I build dependable software and keep it running. Over 25+ years I've delivered production systems end to end for clients across real estate, education, IT services, and other industries — working independently under the CodeAwareness name. My focus is reliability: systems that ship, stay in service, and remain maintainable by the teams that inherit them.
I treat AI coding agents like any other powerful tool — under strict engineering discipline. Every change starts from a tracked intent with its rationale recorded, I favor root-cause diagnosis over quick patches, and I keep commits clean and isolated while coordinating work across several repositories at once. The result is high throughput without giving up the reliability my clients depend on.
Production systems and applications I've designed, built, and delivered — client platforms, developer tools, and open-source work.
A management platform for real-estate agents.
A simulation and visualization of an electric field propagating at the speed of light through a medium.
A solver that counts occurrences of the word XMAS in every direction across a multi-dimensional hypercube.
AI-powered development platform.
A lightweight aliasing layer on top of the MongoDB Node.js driver.
Emacs package for the Code Awareness platform.
This portfolio website — server-prerendered SvelteKit with bilingual support.
A fan community for the Japanese artist Lisa, translating articles into multiple languages.
A courseware and mentorship platform, web and mobile, built from scratch for a Japanese client.
The administration dashboard for the Shibajimu mentorship academy.
An experimental iOS app exploring multi-touch interaction for learning Japanese kanji.
A fashion-matching tool for wedding planners, on web and tablet.
A battle configurator for League of Legends.
A management platform for IT managed-service providers.
A Wi-Fi access-point placement tool for large wireless deployments.
A scheduling, billing, and management platform for videographers.
I take on contract and consulting work — building new systems, modernizing legacy code, and integrating AI into existing products. If you have a project in mind, I'd be glad to talk.
Notes on software engineering, systems, and developer tooling.
Whether you need a system built from scratch, a legacy application modernized, or AI integrated into an existing product, I'd be glad to discuss how I can help.