AI Engineer & Full-Stack Developer

Building AI agent systems that ship real software.

I'm Fabian Veliz. I design AI agent orchestration, multi-agent coordination pipelines and intelligent development workflows — backed by 12+ years building full-stack web apps with React, Rails, Node & Next.js.

  • 12+ Years building for the web
  • 30+ Projects shipped
  • AI Agent systems & workflows
Portrait of Fabian Veliz

Career

Experience

I usually work through an agency for an end client — shown here as role — client (via agency).

  1. AI Engineer

    Southernmade via elementoARG

    Feb 2026 — Present

    Building AI agent orchestration systems and intelligent development workflows. Designing multi-agent coordination pipelines, custom AI skill frameworks, and structured planning methodologies (SOPs) that improve how teams ship software.

  2. Full-Stack / Ruby on Rails Developer

    Digital Mouth via elementoARG

    Dec 2023 — Feb 2026

    Built “Storm Center”, a media-campaign management platform — media-brief builders with budget optimization, multi-client role-based access, automated documents & e-signatures, and real-time reporting dashboards.

  3. Senior React Developer / UI Engineer

    Velosimo via VATES

    Apr 2021 — Aug 2023

    Led UI development for Velosimo’s Admin Panel SPA in React & TypeScript — establishing component best practices, rigorous testing and thorough code reviews while mentoring teammates and running technical interviews.

  4. Front-End Engineer Lead

    HBO via Globant

    Nov 2019 — Dec 2020

    Led HBO’s front-end team: defined the front-end architecture, ran project ramp-ups and code reviews, estimated and assigned work, and partnered with clients to craft clean, performant streaming interfaces.

  5. Senior / Semi-Senior Web UI Developer

    Globant

    Sep 2015 — Dec 2020

    Key developer and technical referent — defined application architecture and best practices, built and tested components, and mentored engineers as they grew their careers.

  6. Front-End & Back-End Developer

    insignia4u.com

    Nov 2013 — May 2015 · Tucumán, Argentina

    Worked mainly on the front end of several projects — building new features and fixing issues with JavaScript, responsive design and CSS preprocessors — and on the back end with Ruby on Rails, connecting databases and writing admin panels.

Selected work

Some things I've built

Just a slice — I've shipped many more across 12+ years.

  • Studio · Co-founder

    VM Pro Lab

    My own web-development studio — a two-person team building AI-integrated digital products and agent-orchestration workflows for ambitious teams.

    • Vanilla JS
    • HTML5
    • CSS3
    • PostCSS
    • Cloudflare Pages
    vmprolab.com
  • Digital Mouth · 2023–2026

    Storm Center

    A full-stack Rails platform for media planning — brief builders with budget optimization, role-based multi-client access, automated documents & e-signatures, and real-time dashboards.

    • Ruby on Rails
    • PostgreSQL
    • Redis
    • Stimulus/Turbo
    • AWS S3
    • Sidekiq
    • Google Ads API
  • HBO · via Globant

    HBO streaming UI

    Front-end for HBO's streaming experience — React with server-side rendering, built to perform at scale for millions of viewers.

    • React
    • SSR
    • JavaScript
  • Streaming app

    Hallmark Movies Now

    Subscription streaming app interface built with Next.js and Redux — server-side rendered for fast, SEO-friendly delivery.

    • Next.js
    • Redux
    • SSR
  • Globant · Corporate site

    Globant

    Updates and bug-fixing across Globant's corporate website — feature tweaks, fixes and front-end polish.

    • JavaScript
    • HTML
    • CSS
    globant.com
  • United Airlines · Enterprise

    United Airlines Dashboard

    A data dashboard for United Airlines — customizable charts, graphs, tables and cards over large operational datasets.

    • AngularJS
    • Data viz
    • Sass
  • VM Pro Lab · Tourism

    Gabitour

    An immersive landing for Iguazú Falls tours, inspired by the Misiones jungle — motion-rich, responsive and conversion-focused.

    • JavaScript
    • CSS animation
    • Responsive
  • VM Pro Lab · Campaign

    VamosBenja

    Campaign site and digital presence for a young competitive swimmer chasing his dream.

    • JavaScript
    • HTML
    • CSS
  • Let's build

    Your project here

    Have an idea, a product to ship, or an AI workflow to design? Let's make it the next thing on this list.

    Start a project

Toolkit

Tech skills

AI engineering on top of a deep full-stack foundation.

AI Engineering

  • Agent orchestration
  • Multi-agent pipelines
  • Intelligent dev workflows
  • Structured planning (SOPs)
  • Custom AI skill frameworks

Frontend

  • React
  • TypeScript
  • Next.js
  • JavaScript (ES2024)
  • Hotwire (Turbo + Stimulus)
  • Tailwind CSS
  • Sass
  • Bootstrap 5
  • Material UI
  • Redux

Backend & APIs

  • Ruby on Rails
  • Ruby 3
  • Node.js
  • Devise
  • Pundit
  • Sidekiq
  • Solid Queue
  • Action Cable
  • REST APIs

Data & storage

  • PostgreSQL
  • MongoDB
  • Redis
  • Memcached
  • Active Record
  • SQLite

DevOps & Cloud

  • Docker
  • Kamal
  • Heroku
  • AWS (S3)
  • CI/CD (GitHub Actions)
  • Git
  • New Relic

Testing & Quality

  • RSpec
  • Capybara
  • FactoryBot
  • Jest / Vitest
  • Cypress
  • RuboCop
  • Brakeman
  • TDD / BDD

Integrations & payments

  • Stripe
  • Braintree
  • Twilio
  • Google Ads API
  • Salesforce
  • Mailgun
  • PDF generation

Impact

Key achievements

  • Full-stack excellence

    End-to-end delivery pairing Ruby on Rails backends with React frontends for international clients.

  • Team leadership

    Led HBO's front-end team — set the architecture and best practices that accelerated how fast the team shipped.

  • Performance optimization

    Drove down load times through code-splitting, lazy-loading and strategic caching.

  • Mentorship impact

    Mentored developers across my career, with several growing into senior roles.

  • Remote collaboration

    Remote-first throughout, collaborating across US, Europe and LATAM time zones.

Background

Education & languages

Education & certifications

  • Become an AI Engineer In progress

    Zero To Mastery

    2026 · Building & deploying production-level AI applications, end to end

  • Meta Front-End Developer Professional Certificate

    Coursera · Meta

    March 2023 – August 2023

  • Information Systems Engineering

    Universidad Tecnológica Nacional, Tucumán

    2019 – 2022 (3rd year completed)

  • Full-Stack Development Specialization

    Udemy, Platzi & Acamica

    2015 – 2022 (Multiple certifications)

Languages

  • Spanish Native
  • English Advanced — C1

Contact

Let's work together

Have a project, role or idea in mind? Send a message — it lands straight in my inbox.

Message sent — thanks! I'll be in touch soon.