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AI-Powered Full-Stack Developer

I build high-performance web and mobile applications, accelerated end to end with AI and without sacrificing the user experience.

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01about.me

Engineer focused on speed and quality

Mérida, Venezuela

Full-stack developer with 6+ years of experience building high-performance web and mobile applications: payment gateways, financial APIs and real-time analytics. Specialized in TypeScript, React, React Native and NestJS over scalable GraphQL and MongoDB architectures.

Over recent years I have supercharged my workflow with AI-driven development and process automation. This lets me ship complex features with greater speed, quality and consistency. I am comfortable working under pressure in startup environments, leading technical fronts and meeting agile deadlines.

7+: Years building software
54+: Projects shipped
2: Languages (ES native · EN pro)

Education

Systems Engineering, 8th semester
I.U.P. Santiago Mariño · Mérida, Venezuela
Since 2021
Bachelor of Science
U.E. Colegio La Salle · Mérida, Venezuela
2015 to 2020

trusted.by

02selected.work

Selected work

A few projects that show how I work across web, mobile and AI-assisted delivery.

Featured

AluminioLogo — Retail ERP, POS & Fiscal Invoicing

I built AluminioLogo's ERP and point-of-sale system from the ground up for a hardware and aluminum distributor with several branches in Venezuela. It covers branch inventory, quotes, returns, receivables, roles and permissions, and a POS that takes payments in USD and bolivares with exchange rates. The part I'm proudest of is fiscal invoicing: a small agent runs as a Windows service in each store and prints invoices, credit notes and daily reports on certified fiscal printers. There is also an admin web app, a mobile app and a product catalog. It has been live in production since October 2026, with more than 3,000 commits. I work with Claude Code daily: I make the architecture decisions and the AI helps me move faster.

AluminioLogo Credit — Buy Now, Pay Later Credit Lines (Cashea-inspired)

I designed the customer credit system inside AluminioLogo, inspired by the buy-now-pay-later model that Cashea made popular in Venezuela and adapted to in-store sales. Each client can get a credit line with a USD limit and a payment term, which can come from a template per client type. At the POS a sale is charged to the line, optionally with a down payment in USD or bolívares, and the system refuses it when the line is over its limit or suspended. Partial payments are applied at the day's exchange rate and release credit as they come in. Overdue debt blocks the line automatically and unblocks it once paid, the receivables screen groups debt by age, and every change lands in an append-only history.

Background Action! — Casting Platform for iOS, Android & Web

Background Action! is a casting platform I built for a Mexican film and TV extras-casting company, rebuilding an older system with a large base of talent profiles. One Expo codebase delivers iOS, Android and web: an eight-step registration wizard with a live casting ID card, photo books, a skills catalog, legacy-profile import and Premium subscriptions. Payments use Stripe on the web and native in-app purchases on mobile. I added push notifications and versioned legal acceptance, and co-built the Laravel 13 API. The first working version took about a month, with automated tests and release runbooks. I used Claude Code throughout, directing the architecture myself.

Legal Global Consulting — Client App on iOS, Android & Web

Legal Global Consulting manages rental protections and legal guarantees for clients in Mexico, and I have built its client product since the beginning. First came the React web front end, then the original React Native app on the App Store and Google Play, and most recently a full rebuild on Expo SDK 57 that ships as an in-place update to the same store listings. The new app also runs on the web from one codebase. Clients calculate and contract protections, follow their policies, book appointments, report breaches, pay with Stripe or PayPal and get push notifications. I also contribute to the Laravel API. A large Jest suite kept the migration low risk.

Wawa Rider App — SRSE Trip Planner, Wallet & Smart Boarding

Wawa is a Venezuelan mobility company running bus circuits, private transport and rentals in Venezuela, Colombia and Guatemala, and I have been the top contributor to its rider app since 2024. My biggest feature there is SRSE, the Smart Request Schedule Engine I designed and built end to end. Riders type where they are going and see every departure of the day as walking plus bus itineraries, with up to one transfer, filtered by real seat availability and ranked by arrival time, transfers and walking. Booking is atomic across legs: a trip gets all its seats or none, and if something breaks the app says which leg failed and offers new options. The engine is pure TypeScript in a hexagonal design with about 660 test cases, load-tested with k6. Around it, the app handles wallet top-ups with several payment providers, favorites, automatic boarding, QR boarding tickets and push notifications, shipped with EAS and over-the-air updates.

RED1A1 V2 — Real-Estate Marketplace on Web, iOS & Android

I led the rebuild of RED1A1, a Mexican real-estate marketplace and professional network, across web, mobile and API. The new Next.js 16 site has a map-first home, directories, owner and admin dashboards, white-label agent websites and Stripe checkout. I shipped a new Expo app as an in-place update to the existing App Store and Google Play listings, with realtime chat, push notifications, native in-app purchases and over-the-air updates. On the Node and MongoDB backend I added realtime delivery, membership logic and scheduled jobs. Strict TypeScript, Zod validation and a 70-flow Maestro suite on Android keep it steady. This extends my earlier work on RED1A1's template pages.

HUMAE — Recruitment Platform with Psychometrics & Billing

HUMAE is a private recruitment platform in Mexico that connects vetted candidates, client companies and an internal recruiting team. I replaced the legacy system with a full rewrite: a Laravel 12 API and a Next.js 16 front end with four role-based experiences. Candidates build profiles, take configurable psychometric tests, generate a CV and pay for membership through Stripe. Recruiters search a filtered talent directory and move people through a drag-and-drop pipeline. Companies post private vacancies and confirm interviews. I owned the architecture, backend, frontend, billing, tests with Pest, Vitest and Playwright, and the production runbook. It is live today.

Mobility Immigration — Law Firm Website, CRM Sync & Admin CMS

I built the website and lead system for Mobility Immigration, a Tampa immigration law firm, for the DotDev and Dulce Marketing agency. It began as a bilingual landing page and grew into a full-stack Next.js 16 product: English and Spanish routes with SEO, 23 visa-pathway pages, a payments page with financing, and a blog on Firestore with ISR. Contact forms are stored in Firestore, emailed through Resend and synced to the firm's Docketwise CRM over OAuth 2.0, with fallbacks so no lead is lost. I also built an admin area with a rich-text editor and tightened the security rules after review.

AssistAI — WhatsApp Sales & Booking Assistant (SaaS)

AssistAI is a SaaS I built end to end to help small businesses handle WhatsApp customer support, sales and appointment booking with a Claude-powered assistant. It lives in a Turborepo monorepo: a React 19 dashboard and admin panel, and a NestJS API on Postgres with Prisma. The assistant uses each business's own catalog through tool calls and pgvector search, with guardrails against invented prices. I integrated the WhatsApp Cloud API, PayPal and crypto payments, live exchange rates and email flows, and launched it on its own domain. It never found market traction, so I treat it as a product case study and a lesson in validating distribution before building breadth.

03ai.workflow

An AI-powered delivery pipeline

AI is woven through my entire cycle. Not a gimmick, but a productivity multiplier. Here is how a feature travels from idea to production.

1
Discover
Clarify intent, constraints and edge cases through AI-assisted research.
2
Spec
Draft types, contracts and a plan reviewed before a line of code is written.
3
Implement
Generate and refactor code at speed, with human judgment guiding the architecture.
4
Test
AI-generated unit and end-to-end coverage on the critical paths.
5
Ship
Automated checks, documentation and previews. Production with confidence.

04career.log

Professional experience

Freelance Full Stack Developer
2026 — Present
AluminioLogoVenezuelaRemote · Freelance
I designed and built AluminioLogo's ERP and point-of-sale system from the ground up. It's for a hardware and aluminum distributor with several branches in Venezuela. I built it under the direction of a business partner who means a lot to me: he led the product vision and the direction of the business, and I turned that into working software. - Inventory across branches, quotes, returns, receivables, roles and permissions. - A POS that takes payments in multiple currencies (USD and bolívares) with exchange rates. - Fiscal invoicing on certified fiscal printers, through a Windows agent running in each store. - An admin web app, a mobile app and a product catalog. It has been live in production since October 2026, with more than 3,000 commits. I worked with Claude every day as part of my workflow: I make the architecture and product decisions, and the AI helps me move faster.
TypeScriptReact.jsNest.jsNode.jsPostgreSQLPrismaSupabaseReact NativeExpoTailwind CSSHeroUITanStack Query
Full Stack Developer
2024 — Present
WawaCaracas, Federal District, VenezuelaRemote · Full-time
First position at a Start-Up: This was an incredible opportunity for career growth. I worked with an amazing team, improving my TypeScript knowledge and specialized in NestJS with Prisma as the ORM, along with GraphQL and MongoDB, which became my primary tech stack. I focused heavily on mastering these tools in 2024. In the second half of the year, I expanded my skills into QA and Cypress testing pipelines. I implemented over 100 tests per project, improving reliability and performance and preventing bugs in production environments.
React.jsNext.jsVite.jsNest.jsNode.jsMongoDBExpress.jsSASSMaterialUIApollo GraphQLFirebaseTypeScript
PWA Frontend Developer
2024
Kromáticos DesignLisbon, PortugalRemote · Full-time
Experience with a small but amazing team: This role has been a perfect fit for me. I worked with great frontend technologies and occasionally dived into backend development. In this position, I significantly enhanced my TypeScript skills. I tackled more complex TypeScript structures while ensuring the code was maintainable and reliable. Additionally, I made great strides in refining my frontend styling abilities.
React.jsNext.jsVite.jsNode.jsMongoDBExpress.jsSASSMaterialUITypeScriptCascading Style Sheets (CSS)Stripe
Frontend Leader and FullStack Developer
2023 — 2026
Internet 360Cancun, MexicoRemote · Full-time
My experience in this company: It has been quite rewarding so far, with a very healthy work environment, flexible schedules, and a great team. I was named frontend development leader because I was responsible for creating 4 web apps with React + Vite for different domains, all with different purposes. In addition to that, I developed 1 complete React Native app. The project was challenging, and I developed it from scratch. I gradually integrated into the backend, becoming a full-stack developer with React, React Native, PHP, MySQL, and Laravel. Main activities: Develop and layout all frontend views, maintain all frontend code, develop some backend aspects, and maintain that code. Discuss new functionalities, propose data structures, and flows for different contexts.
React.jsSASSCascading Style Sheets (CSS)JavaScriptMongoDBNode.jsExpress.jsAzure DevOps ServerMicrosoft Power AutomateTypeScriptMaterialUIHTML
Frontend Web and Mobile Developer
2023 — 2024
Empire KeewayCaracas, Federal District, VenezuelaRemote · Contract
Freelance Projects: I developed some features and projects as a freelancer working with different web and mobile development technologies. One of my best projects was a mobile app used for internal operations at a motorcycle factory located in Charallave, Miranda, Venezuela, which is used for managing lots and improving the company’s efficiency.
FirebaseTypeScriptJavaScriptNode.jsReact.jsNext.jsTypeScriptMaterialUIExpoReact NativeMongoDB
FullStack engineer
2023
Dev NavigateMadrid, Community of Madrid, SpainRemote · Full-time
Specialized in the MERN stack: I’ve started and was the leader in that single project, and worked in one of the main projects with a team. Bug fixing. New functionalities, data migration to another data buckets. I build new functionalities, and data transfer improvements. I am using Trello, Monday, Slack, Git, and keep in touch with my team.
React.jsNext.jsMongoDBAzure DevOps ServerMicrosoft Power AutomateNode.jsExpress.js
Junior Frontend Developer
2022 — 2023
Modu LLCCaracas, Federal District, VenezuelaRemote · Full-time
Bug fixing: Using Scrum methodology. I build new functionalities sometimes, and UI refactors. Worked with Typescript and making code improvements occasionally.
FirebaseTypeScriptJavaScriptNode.jsReact.jsNext.js

05skills.stack

Skills & stack

The tools I reach for, grouped by where they live in the stack.

Frontend

React.js
Next.js
Vite.js
TypeScript
JavaScript
HTML
CSS
SASS
Tailwind CSS
Material UI
shadcn/ui
Ant Design
HeroUI
Framer Motion
Storybook
PWA

State, forms & libraries

TanStack Query
Redux
Zustand
React Router
React Hook Form
Formik
Zod
i18next
Chart.js
Tiptap

Mobile

React Native
Expo
NativeWind
iOS
Android Studio

Backend

Nest.js
Node.js
Express.js
PHP
Laravel
CodeIgniter
Python
Django
BullMQ
JWT
Pino
Xampp

Data & APIs

MongoDB
MySQL
PostgreSQL
Prisma
GraphQL
Apollo GraphQL
DynamoDB
Redis
Elasticsearch
pgvector
WebSockets
Socket.IO

Cloud & DevOps

AWS
Firebase
Firestore
Supabase
Cognito
AppSync
Cloud Functions
Vercel
Railway
Render
Docker
GitHub Actions
Turborepo
Yarn
Azure DevOps
Digital Ocean

AI & Automation

Claude
ChatGPT
Gemini
n8n
Higgsfield
AI-assisted dev
Power Automate
Claude Design

Testing & QA

Jest
Vitest
Cypress
Playwright
Maestro
k6
Pest

Payments & integrations

Stripe
PayPal
NowPayments
Local and international cards
VES P2P payments
Fiscal invoicing
Multi-currency USD/Bs
BNPL credit lines
Wallet top-ups
WhatsApp
Google Maps
Zoho CRM
Docketwise API
Resend
Nodemailer
EmailJS
reCAPTCHA
Serial Port

stack.explorer

Stack by year

The technologies I have shipped with most, by the years they show up in projects and roles. Pick one to browse its projects.

Top 20 technologies by project count, 2020 to 2026The grid shows the last 7 years; spans in the labels cover all the data.
Technology	2020	2021	2022	2023	2024	2025	2026
React.js2020–2026 · 49 projects	React.js, 2020: 2 projects	React.js, 2021: 4 projects	React.js, 2022: 5 projects	React.js, 2023: 8 projects	React.js, 2024: 13 projects	React.js, 2025: 2 projects	React.js, 2026: 15 projects
TypeScript2022–2026 · 35 projects	TypeScript, 2020: no activity	TypeScript, 2021: no activity	TypeScript, 2022: in use, no dated projects	TypeScript, 2023: 6 projects	TypeScript, 2024: 9 projects	TypeScript, 2025: 2 projects	TypeScript, 2026: 18 projects
Material UI2021–2026 · 26 projects	Material UI, 2020: no activity	Material UI, 2021: 4 projects	Material UI, 2022: 4 projects	Material UI, 2023: 7 projects	Material UI, 2024: 7 projects	Material UI, 2025: 2 projects	Material UI, 2026: 2 projects
SASS2021–2026 · 25 projects	SASS, 2020: no activity	SASS, 2021: 4 projects	SASS, 2022: 4 projects	SASS, 2023: 6 projects	SASS, 2024: 11 projects	SASS, 2025: in use, no dated projects	SASS, 2026: in use, no dated projects
Firebase2020–2026 · 24 projects	Firebase, 2020: 2 projects	Firebase, 2021: 4 projects	Firebase, 2022: 3 projects	Firebase, 2023: 5 projects	Firebase, 2024: 4 projects	Firebase, 2025: 2 projects	Firebase, 2026: 4 projects
JavaScript2021–2026 · 23 projects	JavaScript, 2020: no activity	JavaScript, 2021: 3 projects	JavaScript, 2022: 4 projects	JavaScript, 2023: 6 projects	JavaScript, 2024: 10 projects	JavaScript, 2025: in use, no dated projects	JavaScript, 2026: in use, no dated projects
MongoDB2022–2026 · 17 projects	MongoDB, 2020: no activity	MongoDB, 2021: no activity	MongoDB, 2022: 2 projects	MongoDB, 2023: 5 projects	MongoDB, 2024: 5 projects	MongoDB, 2025: 1 project	MongoDB, 2026: 4 projects
Node.js2022–2026 · 17 projects	Node.js, 2020: no activity	Node.js, 2021: no activity	Node.js, 2022: 4 projects	Node.js, 2023: 6 projects	Node.js, 2024: 4 projects	Node.js, 2025: 1 project	Node.js, 2026: 2 projects
Vite.js2023–2026 · 17 projects	Vite.js, 2020: no activity	Vite.js, 2021: no activity	Vite.js, 2022: no activity	Vite.js, 2023: in use, no dated projects	Vite.js, 2024: 8 projects	Vite.js, 2025: 2 projects	Vite.js, 2026: 7 projects
CSS2021–2026 · 16 projects	CSS, 2020: no activity	CSS, 2021: 1 project	CSS, 2022: 4 projects	CSS, 2023: 4 projects	CSS, 2024: 7 projects	CSS, 2025: in use, no dated projects	CSS, 2026: in use, no dated projects
HTML2021–2026 · 14 projects	HTML, 2020: no activity	HTML, 2021: 1 project	HTML, 2022: 2 projects	HTML, 2023: 5 projects	HTML, 2024: 6 projects	HTML, 2025: in use, no dated projects	HTML, 2026: in use, no dated projects
Tailwind CSS2026 · 12 projects	Tailwind CSS, 2020: no activity	Tailwind CSS, 2021: no activity	Tailwind CSS, 2022: no activity	Tailwind CSS, 2023: no activity	Tailwind CSS, 2024: no activity	Tailwind CSS, 2025: no activity	Tailwind CSS, 2026: 12 projects
Next.js2022–2026 · 11 projects	Next.js, 2020: no activity	Next.js, 2021: no activity	Next.js, 2022: in use, no dated projects	Next.js, 2023: 3 projects	Next.js, 2024: 4 projects	Next.js, 2025: in use, no dated projects	Next.js, 2026: 4 projects
React Native2022–2026 · 10 projects	React Native, 2020: no activity	React Native, 2021: no activity	React Native, 2022: 1 project	React Native, 2023: 1 project	React Native, 2024: 3 projects	React Native, 2025: in use, no dated projects	React Native, 2026: 5 projects
Laravel2023–2026 · 9 projects	Laravel, 2020: no activity	Laravel, 2021: no activity	Laravel, 2022: no activity	Laravel, 2023: in use, no dated projects	Laravel, 2024: 5 projects	Laravel, 2025: in use, no dated projects	Laravel, 2026: 4 projects
MySQL2023–2026 · 9 projects	MySQL, 2020: no activity	MySQL, 2021: no activity	MySQL, 2022: no activity	MySQL, 2023: in use, no dated projects	MySQL, 2024: 5 projects	MySQL, 2025: in use, no dated projects	MySQL, 2026: 4 projects
Stripe2023–2026 · 9 projects	Stripe, 2020: no activity	Stripe, 2021: no activity	Stripe, 2022: no activity	Stripe, 2023: in use, no dated projects	Stripe, 2024: 3 projects	Stripe, 2025: in use, no dated projects	Stripe, 2026: 6 projects
Nest.js2024–2026 · 8 projects	Nest.js, 2020: no activity	Nest.js, 2021: no activity	Nest.js, 2022: no activity	Nest.js, 2023: no activity	Nest.js, 2024: 1 project	Nest.js, 2025: in use, no dated projects	Nest.js, 2026: 7 projects
TanStack Query2026 · 8 projects	TanStack Query, 2020: no activity	TanStack Query, 2021: no activity	TanStack Query, 2022: no activity	TanStack Query, 2023: no activity	TanStack Query, 2024: no activity	TanStack Query, 2025: no activity	TanStack Query, 2026: 8 projects
WebSockets2022–2026 · 8 projects	WebSockets, 2020: no activity	WebSockets, 2021: no activity	WebSockets, 2022: 2 projects	WebSockets, 2023: 1 project	WebSockets, 2024: 4 projects	WebSockets, 2025: in use, no dated projects	WebSockets, 2026: 1 project

No activity
In use, no dated project
1 project
2–3 projects
4+ projects

06testimonials

What people say

07certifications

Certifications

Cypress, from Zero to the Cloud

Udemy

08contact

Let's build something

Have a project or role in mind? Send a message and I'll get back to you.

AI-Powered Full-Stack DeveloperAI-Powered Full-Stack Developer

Engineer focused on speed and quality

Education

Selected work

AluminioLogo — Retail ERP, POS & Fiscal Invoicing

AluminioLogo Credit — Buy Now, Pay Later Credit Lines (Cashea-inspired)

Background Action! — Casting Platform for iOS, Android & Web

Legal Global Consulting — Client App on iOS, Android & Web

Wawa Rider App — SRSE Trip Planner, Wallet & Smart Boarding

RED1A1 V2 — Real-Estate Marketplace on Web, iOS & Android

HUMAE — Recruitment Platform with Psychometrics & Billing

Mobility Immigration — Law Firm Website, CRM Sync & Admin CMS

AssistAI — WhatsApp Sales & Booking Assistant (SaaS)

An AI-powered delivery pipeline

Professional experience

Freelance Full Stack Developer

Full Stack Developer

PWA Frontend Developer

Frontend Leader and FullStack Developer

Frontend Web and Mobile Developer

FullStack engineer

Junior Frontend Developer

Skills & stack

// Frontend

// State, forms & libraries

// Mobile

// Backend

// Data & APIs

// Cloud & DevOps

// AI & Automation

// Testing & QA

// Payments & integrations

Stack by year

What people say

Certifications

Let's build something

Selected work

AluminioLogo — Retail ERP, POS & Fiscal Invoicing

AluminioLogo Credit — Buy Now, Pay Later Credit Lines (Cashea-inspired)

Background Action! — Casting Platform for iOS, Android & Web

Legal Global Consulting — Client App on iOS, Android & Web

Wawa Rider App — SRSE Trip Planner, Wallet & Smart Boarding

RED1A1 V2 — Real-Estate Marketplace on Web, iOS & Android

HUMAE — Recruitment Platform with Psychometrics & Billing

Mobility Immigration — Law Firm Website, CRM Sync & Admin CMS

AssistAI — WhatsApp Sales & Booking Assistant (SaaS)

Professional experience

Freelance Full Stack Developer

Full Stack Developer

PWA Frontend Developer

Frontend Leader and FullStack Developer

Frontend Web and Mobile Developer

FullStack engineer

Junior Frontend Developer

Stack by year

What people say

Certifications

AI-Powered Full-Stack Developer

Frontend

State, forms & libraries

Mobile

Backend

Data & APIs

Cloud & DevOps

AI & Automation

Testing & QA

Payments & integrations