kleyson@dev
~ git log --all --brag

A career worth bragging about

25+ years · 3 countries · still shipping

~ _
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Chapter 01

Five Technology Eras

In a field where the stack turns over every few years, my career is proof of adaptability. Over 25 years I've continuously reinvented my craft — from Linux server migrations to on-device AI.

#1999 origin

The sysadmin era

RISC/AIX → Linux

Where it started: keeping servers alive and migrating them to Linux.

#2000s enterprise

The web era

LAMP · PHP · Oracle

Building the university's first web systems — including online enrollment.

#2010s feature/pivot

The enterprise → SPA pivot

J2EE → React / React Native

Enterprise Java at national scale, then the leap to modern JavaScript.

#2018—2024 main

The cloud era

React · Node · AWS/Azure · IaC

Full-stack product work and the infrastructure it runs on, across Canada.

#2025—now HEAD

The AI era

on-device AI · LLM tool-calling · offline-first

At the frontier again — shipping AI into real mobile products.

25+ years shipping code
5 technology eras
3 countries
Chapter 02

Beyond the Day Job

The best proof that I love this work is what I build when nobody's paying me to. A few things I'm proud of outside the résumé.

#homelab infra

A production-grade homelab, 100% as code

Ansible · Terraform · Docker · Grafana

Multi-cloud infrastructure I own end to end — no console clicking.

Ansible + Terraform across Proxmox, Oracle Cloud, and OVH. Self-hosted git & CI (Forgejo), photo backup (Immich), S3, a full VictoriaMetrics / Grafana / Loki observability stack with alerting, and nightly restic backups behind a Cloudflare edge. Deliberately lightweight, open-source, and idempotent.

#esp32 hardware

A physical homelab status display

ESP32-C6 · LVGL · Go

Hardware + software, end to end — a desk device that turns red when something breaks.

Designed the JSON contract, a stateless Go API querying my metrics, and LVGL firmware driving a touch LCD — per-service status dots, a live metric, and a sparkline. Software homelab made tangible.

#toremember origin/family

A full software stack for a family business

Next.js · Bun · Drizzle · AI

The software behind my wife's custom 3D-printed gift shop.

A Next.js e-commerce storefront, a drag-and-drop 3D-print queue manager, and an AI SMS CRM that auto-triages inbound customer texts, looks up orders, and replies in seconds. Real software solving real problems for people I love.

#for-fun feature/play

Games & tools, just because

Go · WebSockets · React Native · Swift

Craft for its own sake.

werewolf.rocks — a full-stack real-time multiplayer social-deduction game (Go + WebSockets, React Native) — plus napkin, a local-first macOS clipboard manager with AI categorization and self-hosted sync.