Chiang Mai, Thailand
Chiang Mai, ThailandCurious by default.
Building from scratch to shipping, for the fun of learning.
I care about clean data models, UIs that survive flaky networks, and shipping things that actually work.
Five years building web and mobile apps. Currently working at Facilitron, a facility-management platform, on React Native apps and a .NET 9 API.
What I can build for you
Mobile apps
iPhone and Android from one codebase, idea to App Store, including apps that keep working offline in the field.
Web apps & sites
Fast, modern websites and dashboards, from a landing page to a full product your customers log into.
Backends & APIs
The engine behind the app: accounts, payments, notifications, and real-time updates that stay up.
AI features
Practical AI inside your product: chat, summaries, and smart automation that saves your team hours.
Selected work
A handful of things I've built lately. Each one taught me something.
AtlasLive
A personal training app that knows your program, your numbers, and your history.
Mobile-first workout tracker with training programs, session logging, per-exercise history, stats charts, and an anatomical muscle map. Works offline via a mutation queue that syncs when you're back, ships six switchable themes, installs as a PWA, and has a native iOS app in Expo. Next.js 16 App Router with server actions, Neon Postgres + Drizzle, Better Auth.
EquilibriaIn TestFlight
A habit-building health app across four pillars of wellness.
Mobile-first habit tracker across four pillars of wellness: physical activity, nutrition, sleep, stress. Custom JWT with Apple + Google Sign-In, Fastify API on Fly.io (Singapore), managed Postgres on Neon (migrated off Fly Postgres after a 256MB OOM ceiling). English + Spanish via i18next, RN New Architecture (Fabric/TurboModules) enabled, Turborepo monorepo. Currently in TestFlight.
RecallIn progress
A learning tracker that derives mastery from how you actually score, not from what you check off. Currently loaded with a DeFi curriculum.
Single-user learning tracker over a static curriculum. Mastery is computed at read time from recorded quiz attempts (80% correct across a term's last five) rather than pre-aggregated, so changing the rule is a one-function edit with no backfill. Wrong answers get diagnosed instead of just corrected: a dedicated endpoint names the misconception a specific choice implies. Glossary definitions and schema-validated quizzes run on Claude tool_use, with a pluggable provider (Anthropic in production, LM Studio locally).
Experience.
Five years of shipping. The products, and what I built in each.
How I work
Plan before code
Every change starts as a written plan with scope and impact spelled out. Corrections are cheap there and expensive once it is built.
AI on the grunt work
A custom agent pipeline handles spec extraction, scaffolding, and audits. The repetitive work compresses, so the hours go into architecture and judgment.
Built to your conventions
New code follows the patterns already in your repo, down to field names and component styles. Anyone on the team can pick it up and keep going.
Nothing ships unaudited
Every build clears an automated gate before it counts as done: lint and typecheck clean, behavior verified against the spec.
Facilitron
May 2025 – PresentFull Stack Developer
Building two production React Native apps (Works and FIT) for facility-management workflows, plus the shared .NET 9 backend on Azure SQL.
- ▸Works app: five role-based navigation stacks, offline-first sync queue, real-time SignalR updates, and push notifications, all from one codebase shipping to iOS, Android, and web.
- ▸FIT app: offline-first field inspections with optimistic mutations, EAS Build across dev / staging / prod, shipping to iOS, Android, web, and Windows (React Native Windows).
- ▸API: feature-based .NET 9 backend with EF Core + Dapper, real-time via Azure SignalR, batch PDF and Excel reporting.
React NativeExpoExpo WebReact Native WindowsTypeScriptTanStack QueryZustand.NET 9EF CoreDapperAzure SQLSignalRDash
2025Freelance Full Stack Developer
Brought in on Dash Notes 1.5 (dashnote.io) after the release stalled in App Store review, and got it approved and live by root-causing the iOS-only defects blocking it, from a paywall nobody could pay through to silent crashes on launch. Dash is a privacy-first notes app for macOS, web, and iOS: everything encrypted on-device with AES-256, no accounts, no cloud sync, no telemetry.
- ▸Worked the release through round after round of App Store review to approval, each one a distinct iOS-only defect root-caused and fixed in turn, plus one App Store Connect submission-mechanics trap.
- ▸Restored iOS subscriptions when the paywall hung forever and no customer could complete a purchase: the RevenueCat Capacitor plugin proxy fabricates a .then, so promises resolved with it never settle. Boxed the proxy and gated SDK init.
- ▸Stopped the app terminating silently on launch (missing camera usage descriptions), brought the local-AI features back within reach inside the WebView, and fixed a Deno-deployed sync relay that was dropping CORS preflight headers.
Next.jsReact 18Editor.jsElectronCapacitorRevenueCatTailwindZustandGitHub ActionsLinkJolt
2025Freelance Full Stack Developer
Cut the request load behind LinkJolt's affiliate dashboards, the screens its customers live in all day. LinkJolt is an affiliate-marketing SaaS covering link-based and coupon-based attribution, campaign invitations, Stripe and Paddle billing, and mass payouts.
- ▸Traced the platform's excessive API traffic to redundant and duplicated requests firing on every dashboard view, then eliminated them, cutting round-trips per page load and database work per user.
Next.jsTypeScriptMUIDrizzle ORMTanStack QueryNextAuthStripePaddlePostHogCSA 360 Software
Jul 2022 – Feb 2025Freelance Full Stack Developer
Owned the GPS-verified guard-tour module and shipped operational screens across CSA360, then kept it all running in production for two and a half years. CSA360 is a security-operations platform for guard companies, covering officer scheduling, patrol tracking, incident reporting, visitor management, and real-time dispatch, on web plus iOS and Android.
- ▸Built the guard-tour module end to end: the GPS-verified patrol tracking that proves a guard actually walked the route, on the schedule the contract promised.
- ▸Shipped operational pages across the product: filterable tables, list/detail views, and search for day-to-day security-team workflows.
- ▸Ran the Jira-driven bug queue on a live platform, the unglamorous reliability work that keeps security operations running.
ReactReact NativeReact-BootstrapPHPMySQLTwilioAWSTWIGOH
Aug 2020 – 2022Freelance Front End Developer
Two years of front-end work at an early-stage startup, a unified social marketplace where users discover products and services through trusted reviews from friends, family, and influencers.
Also shipped for
- EdCafe · Front End Developer2025
Interactive web apps with AI-powered features; front- and back-end architecture work.
- Baptist Faith · Front End Mobile Developer2024
Mobile app serving 10,000+ Bible-based audio and video files across music, bible, and preaching.
- Lyra · Front End Mobile Developer2024
Stability, UI/UX polish, and bug fixes for a caregiver-focused mobile app.
Let's talk.
Open to both project work and joining a team. Pick whichever channel works. I usually reply within a day.
$ cat contact.dat
- email::shiezza.devpresso@gmail.com
- github::https://github.com/sh1zzle
- linkedin::https://www.linkedin.com/in/shizzie/
- resume::/Shiezza-Lauron-Resume.pdf
- timezone::Asia/Bangkok (UTC+7)
skills.txt
The full technical inventory, for fellow developers doing due diligence.
Languages
Frontend
Mobile
Backend
Data
State & Data Fetching
Auth & Real-time
AI
Cloud / DevOps
Observability
