Hi, I'm James Barruga

Full-Stack &
AI Engineer

AI Developer · AI Orchestrator · Full-Stack

I design, build, deploy, and run production systems end-to-end — full-stack web apps, AI agents, and the data pipelines behind them. From a real business problem to shipped, tested, and running.

Available for work

TypeScript

JavaScript React

React

Next.js

Node.js

Python

PostgreSQL

Tailwind CSS Git

Git

Firebase

TypeScript

JavaScript React

React

Next.js

Node.js

Python

PostgreSQL

Tailwind CSS Git

Git

Firebase

Selected Work

What I've built and shipped

Client production systems

Featured project

Hospitality client — website + no-code CMS + online ordering

A full Next.js site for a resort/hospitality business with a custom no-code admin CMS — the client edits all six content sections themselves — plus a Messenger-based ordering flow. Designed, built, and shipped to production.

Next.js 16 TypeScript Headless CMS Tailwind Messenger API

Live link on request.

Healthcare operations automation

Internal revenue-cycle / operations automation for a US medical practice — workflow design to cut manual back-office work.

Automation Ops Healthcare

Confidential — details on request.

Custom financial planner

A two-earner budgeting + debt-payoff planner: dated-log inputs feed a live dashboard (donut/bar/yearly charts) with an NPER debt-free-date projection and sinking funds.

Google Sheets API Data viz Finance

Private build — demo on request.

AI systems

AI Voice Receptionist

24/7 inbound phone agent: ElevenLabs voice, n8n business logic, Twilio telephony, CRM sync.

ElevenLabs n8n Twilio Python

AI Product Studio

Research + content studio for e-commerce: vision scraper, AI drafting, compliance checks.

Next.js TypeScript OpenAI

AI Video Pipeline

n8n orchestrator: news verification → script → visuals → assembled documentary segment.

n8n Python Shotstack

Automation & data

Cold Email Automation Pipeline

Lead enrichment, AI-personalized drafts, human approval gate, manual send.

Python n8n Telegram Bot Gmail API

Lead Prospecting Toolkit

Playwright + Python B2B toolkit: multi-source discovery, contact extraction, lead scoring.

Playwright Python

Microfinance OS

Multi-role operations dashboard (exec, field officer, finance, admin) over one shared data layer.

Next.js TypeScript Tailwind

Mobile Commerce Studio

Mobile-first e-commerce creative tool: AI-assisted listings, compliance, multi-channel export.

Next.js TypeScript Tailwind

Capabilities

Full-stack · AI · Data — the whole range

Languages

TypeScript / JavaScript
Python
SQL

Frontend

React
Next.js
Tailwind CSS
Responsive UI
Component / design systems

Backend

Node.js
REST APIs & webhooks
Serverless / edge functions
Supabase-class backends
Auth & access control

Databases & Data

PostgreSQL
Firebase
BigQuery
MongoDB
MySQL
Vector databases & embeddings
Data modeling

AI / LLM Engineering

LLM APIs (Claude · GPT · Gemini)
RAG / internal assistants on a company's own docs
Prompt engineering & reusable prompt libraries
AI chat & voice agents (ElevenLabs)
Agent & multi-step workflow orchestration

Automation

n8n
Make
Zapier
Telegram / Gmail bots
Multi-step workflow design, troubleshooting & optimization

Data & Dashboards

Multi-role operations dashboards
Data visualization
Google Workspace engineering (Sheets/Docs via API — SUMIFS, NPER, live dashboards)

Integrations

CRMs
Twilio telephony
Messenger API
Notion
Airtable
Google Workspace
Cloud storage
Third-party REST APIs

Web Automation & Scraping

Playwright / headless browser
Data extraction
Anti-bot handling
SPA scraping

DevOps & QA

Git
CI
Playwright test round-trips & build gates
Deployment (Vercel · GitHub Pages · VPS)

Approach

How I work

I own the outcome — from the business problem to deployed, working software, not a ticket.

Production-first: I test my own work (Playwright round-trips, build gates) before it ships.

I build to be read — clean, reusable, maintainable code, whatever the stack.

End-to-end: design, build, deploy, and keep it running — full-stack, AI, and the data behind it.

Experience

Where I've worked

Founding Engineer — Forward Deployed Engineer

JoNeX

2026 – Present

Principal hands-on builder of the agency's client systems — working from a client's real problem to design, build, deploy, and iterate production software: web apps, AI agents, automations, and data dashboards.

Full-Stack &AI Engineer