Sergio Romero
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Sergio Romero

I build and design innovative software

Bilingual engineering leader with 12+ years shipping high-impact systems for international clients. I pair senior engineering judgment with an AI-augmented workflow — agentic coding, automated review passes, workflow pipelines — so quality and speed stop being a trade-off.

TLtech_leadership
full_stack
AIai_augmented
AWScloud_computing
Ionmobile_apps
portfolio

Selected Projects

Huge New Platform

Front-end development for a full agency platform redesign — Next.js on a headless Contentful CMS.

global_redesign · headless_cms

NBA 75th Anniversary

Digital campaign for a global fanbase — data-driven engagement, trivia, and interactive moments at broadcast scale.

worldwide_campaign · broadcast_scale

Bilingual App

Co-founded EdTech startup — hybrid iOS/Android app with real-time global chat built from scratch on Ionic, Angular, and Firebase.

10k_concurrent_users · 20+_countries
the edge

How I Work

ai_augmented

AI-Augmented Delivery

Claude Code, GitHub Copilot, and n8n are wired into how I actually build: agentic coding sessions, automated review passes, and pipeline automation — with 12 years of judgment deciding what ships.

architecture_first

Architecture First

Master of Engineering in Software Engineering (Universidad de Los Andes). Systems designed to scale before the first line ships — micro-frontends, cloud, CI/CD.

team_multiplier

Teams That Ship

Front-End Practice Lead and career mentor, twice awarded for engineering mentorship. The biggest performance multiplier in software is still people.

career

Where I've Been

  1. 2024 — now

    Technical Lead & Front-End Practice Lead

    Globant

    Owning architecture, engineering standards, and client-facing delivery on a flagship international retail account — while growing the engineers behind it.

  2. 2021 — 2024

    Senior Software Engineer

    Huge

    Front-end engineering for global brands — platform redesigns and worldwide digital campaigns, including the NBA's 75th anniversary.

  3. 2017 — 2022

    Co-Founder & Chief Development Officer

    Bilingual App

    Scaled an EdTech startup to 10,000+ concurrent users across 20+ countries. Built the real-time global chat from scratch and owned every engineering decision from day one.

  4. 2020 — 2021

    Senior Web Developer

    Globant

    E-commerce engineering for international enterprise clients.

  5. 2019 — 2020

    Software Engineer

    PSL Corp — now Perficient

    Full-stack delivery in a high-bar consulting environment for US clients.

  6. 2016 — 2019

    Software Development Engineer

    Sistemas Enlinea

    Banking and finance applications — where correctness and uptime are non-negotiable.

skills

Technologies

frontend

Vue.js

Composition API + Pinia — my daily driver for enterprise e-commerce at scale.

everywhere

TypeScript

Non-negotiable. Whole classes of bugs never reach runtime.

frontend

React

The industry default when team velocity and hiring matter.

ai

Claude Code

Agentic coding in the daily workflow — faster delivery, same standards.

backend

Node.js

One language across the stack — APIs, tooling, automation.

cloud

Firebase

Auth, real-time data, and hosting for products that ship in weeks.

cloud

Google Cloud

My default cloud — production infrastructure without the ceremony.

delivery

Vite

Instant feedback loops. Developer experience is a feature.

frontend

Angular

Opinionated structure for large teams and long-lived codebases.

mobile

Ionic

Shipped a 10K-concurrent-user app to both stores from one codebase.

delivery

Docker

Reproducible builds — works-on-my-machine is not a strategy.

cloud

AWS

Production infrastructure when the client already lives there.

edge

Cloudflare

Edge caching and bot defense in front of everything I ship.

about me

Who I am

12+years shipping software
10K+concurrent users at peak
20+countries reached
2×engineering mentorship awards

I'm a bilingual engineering leader who works the full picture: solution architecture and technical strategy, hands-on delivery, and building the teams that make it happen. I hold a Master's in Software Engineering from Universidad de Los Andes.

From co-founding an EdTech startup and owning every engineering decision from day one, to leading front-end practice on flagship enterprise accounts — I thrive where complexity is high, stakes are real, and the work has to ship. Today that means pairing hard-won judgment with AI tooling: the leverage is new; the standards aren't.

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contact

Let’s Talk!

Do you have a new project in mind? Let’s work together!
For business and collaboration enquiries just text me: