George Burduhos

Cross-Platform
Engineer.

Mobile · Web · Agentic AI Engineering

16+ years shipping mobile products — React Native, Expo, iOS, Android. One codebase across all platforms: native apps, web, and PWAs from a single TypeScript source. Delivered in fintech, blockchain, media, and enterprise.

Full-stack capable — TypeScript, Node.js, REST APIs, CI/CD — and increasingly focused on AI Engineering: designing agentic workflows where specialized AI agents build, review, and verify real work under explicit boundaries.

Currently building two AI-native apps in production — StatsOS and DayOS.

Cluj-Napoca, Romania
React NativeExpoiOS · Android · Web · PWATypeScriptNode.jsAgentic AIClaude · OpenAI
16+
Years in mobile
7+
Years React Native
iOS · Android · Web
Platforms

AI Engineering

From LLM integration to agentic engineering systems.

Three years ago this was calling LLM APIs from mobile apps. It's grown into designing Agentic AI systems — where specialized agents research, build, review, and verify real work with defined responsibilities, not a single model doing everything unsupervised. Siteworks is the clearest evidence of that, below.

LLM integration

Connecting LLMs (Claude, GPT-4, Gemini) to products — chat interfaces, content generation, smart search, contextual suggestions.

AI-assisted engineering

Using AI to automate parts of the engineering process itself: PR reviews, release notes, CI/CD decisions, test generation.

Agentic workflows & orchestration

Designing systems where specialized AI agents build, review, and verify real work under explicit roles and boundaries — see the Siteworks case study below.

On-device & edge

Integrating on-device ML models and edge inference for features that need to work offline or with low latency.

Case Study

BG Siteworks — Agentic AI, in production.

Siteworks builds real business websites, but the product isn't the point — the engineering system behind it is. It's a multi-agent pipeline where a builder agent and an independent reviewer agent have separate responsibilities, and neither one is trusted blindly, including by me.

01

Research & verify

Public sources checked and recorded before a line of copy is written — no invented services, prices, or history.

02

Build & orchestrate

Claude Code researches, designs, and implements — then deploys and self-reviews its own output.

Claude Code

03

Independent review

A separate, read-only session evaluates the live build against sources, brand, UX, and technical standards.

OpenAI Codex

04

Verify & remediate

Every finding is independently accepted or rejected with evidence — not applied automatically — then fixed.

Claude Code

05

Fresh review & QA

A new reviewer session checks the fixes, hunts for regressions, and clears the build for deployment.

deployment-ready

Shared standards

Every project runs against the same written standards for design, content, SEO, and review behavior — not ad-hoc prompting per site.

Brand as constraint, design as freedom

Real logos and established brand colors are preserved as hard constraints. Everything else about the design is free to change.

The builder doesn't grade its own work

Codex reviews independently and read-only. Claude then evaluates each finding on its own merits rather than applying it blindly.

Execution boundaries

The pipeline runs autonomously through research, build, review, and fix — but stops before anything that touches a real domain or live integration without sign-off.

Claude Code and OpenAI Codex are the current implementation — the roles are what matter. A builder with deep context, an independent reviewer with none, and explicit boundaries around what either one is allowed to do on its own.

Automation

I build the tools I use.

If I find myself doing something more than twice, I write code for it. The result is a growing set of personal tools — bots, dashboards, systems — that handle the repetitive work so I can focus on the hard parts. These aren't side projects. They run every day. The same instinct, taken further, is what became Siteworks.

Invoice upload bot

view flow →

Uploading receipts and invoices to solo.ro was a manual, multi-step process after every expense.

Telegram bot — send a photo or PDF, it uploads automatically via Playwright. Zero manual steps.

PythonTelegram APIPlaywright

Think of something you do on a regular basis.

I probably have a way to automate it — or can build one.

Let's talk

Experience

16+ years in software engineering.

Most of my client work since 2023 comes through a long-term agency partnership. The projects are under NDA, but the scope, stack, and outcomes are available to discuss directly. Reach out if you'd like details.

Client projects

·

React Native Developer

NDA
2023 – Present

Multiple React Native client projects from scratch — fintech, retail, and enterprise. Expo EAS, white-label component systems, strict TypeScript throughout.

Built from scratchWhite-labelReact NativeExpoTypeScriptExpo EASREST APIsCI/CD

Tiexo

·

Full Stack Engineer

May 2021 – Dec 2022

Full-stack NFT aggregator on Solana — blockchain parsing, transaction building, marketplace REST API, and Next.js front end, owned end-to-end.

Built from scratchFull-stackSolanaTypeScriptNext.jsNode.jsMongoDBPostgreSQLREST API

Moonlet

·

React Native Developer

Oct 2019 – Dec 2022

Non-custodial crypto wallet — React Native for iOS, Android, and Chrome Extension, plus a backend for remote screen composition.

Built from scratchCross-platformReact NativeTypeScriptSolanaEthereumZilliqaNearNode.jsChrome Extension

Soundmix

·

React Native Developer & Technical Lead

Sep 2018 – Jul 2019

Live video streaming app for DJs — led mobile and backend team from recruiting and architecture to CI/CD and delivery.

Built from scratchTechnical leadReact NativeNode.jsVideo StreamingCI/CD
2008 – 2018·iOS Developer · Team Lead · Project Manager·iOS, Objective-C, Swift

Currently Building

Personal AI projects.

Side projects I'm actively building and using — both in public beta.

StatsOS

beta

Health analytics from wearable data.

Processes Whoop exports and surfaces insights on recovery, sleep, and strain — with AI-generated summaries. Built with React, Expo (web), and LLM integration.

ReactExpo WebTypeScriptAI / LLMData viz

DayOS

beta

Output-focused daily OS.

A personal productivity system built around daily output — task management, journaling, and planning with AI assistance at its core. React + Expo (web).

ReactExpo WebTypeScriptAI / LLMSupabase

Skills & Stack

Technologies I work with.

Mobile
React NativeExpo / EASiOS (Swift / Obj-C)AndroidApp Store submissionGoogle Play submission
Language
TypeScriptJavaScript
AI
LLM IntegrationAgentic AI / Multi-Agent SystemsAI Agent Orchestration
Backend
Node.jsExpress.jsNext.jsREST APIs
Database
MongoDBPostgreSQL
Blockchain
Solana / Web3Ethereum / EVM
Testing
Jest / EnzymePlaywrightE2E TestingIntegration Testing
DevOps
CI/CD pipelinesGit
Design
Figma / Sketch
Process
Agile / Scrum