Compiling profile
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Software & IoT Developer experienced in Modbus, M-Bus, RS485, and Wi-SUN for submetering hardware using Python, C/C++, and Bash. I have also worked on modernizing legacy systems into microservices using TypeScript, Java, and Go, with a focus on PostgreSQL and AWS Lambda/Docker. Beyond firmware, I have built PWAs in React and Vue, using TDD and Playwright to ensure reliability.
$ whoami
jlh — Embedded & Full-Stack Developer
$ grep "PASSION" ./bio | awk '{print $NF}'
Mastery
$ cat roadmap.md | grep "shipped" | tail -n 1
- [DONE] Embedded submetering gateway v2.4 (M-Bus protocol)
$ git commit -m "feat: integrated m-bus communication module"
[main 8e2f4a] 1 file changed, 100% precision added
$ find hardware/ -name "*lora*" -exec ls -lh {} +
-rw-r--r-- 1 jlh staff 12K Feb 23 submeter_gateway_lora.cpp
$ sed -i 's/impossible/done/g' status.log && cat status.log
STATUS: ALL DONE. 200 OK
$ curl -s https://jose-henriquez.dev/location | jq -r '.country'
London, Ontario
$ _
A comprehensive toolkit ranging from low-level embedded protocols to high-level reactive frameworks.
Leading end-to-end development of IoT communication protocols (Modbus RTU/TCP-IP, Wi-SUN) and cloud-connected telemetry pipelines, alongside scalable AWS microservices and RESTful APIs. Migrated legacy systems into production-grade, containerized services (Docker/Kubernetes) and drove TDD adoption with Jest/Playwright, cutting regression issues by 20% and improving API throughput by up to 40%.
Maintained power transmission protection systems across 30+ substations, standardizing circuit schematics in AutoCAD Electrical. Built Python/MySQL tooling to prioritize circuit replacements and estimate labor costs, cutting planning time by 50%, and tested 100+ protection relays using OMICRON Test Universe.
Developed responsive UIs for Walmart's US e-commerce platform using React and Redux, serving thousands of daily users. Engineered reusable, Jest-tested component libraries across 10+ components and migrated core storage from SQL to MongoDB.
A collection of systems and applications built with discipline and precision.
A terminal-based CLI tool to scaffold API projects, auto-generating boilerplate for routes, models, middleware, and authentication, with a custom templating system to standardize project structure across teams.
"Reducing repetitive setup time when spinning up new API projects."
An AI-powered code review tool integrated with GitHub Actions that automatically analyzes pull requests on every push, fetching diffs via GitHub tokens and posting structured review comments.
"Private, cost-free AI code analysis using self-hosted LLM inference instead of external APIs."
A real-time collaborative messaging SPA with AI-powered chat interactions, built with Vue 3 Composition API and server-side rendering for SEO optimization.
"AI-powered collaborative workspace for real-time messaging and AI-assisted interactions."
Let's build something together - whether it's an AI agent, a full-stack app, or just exchange fitness tips and coding insights. Always open to collaborating with fellow builders and learners.