Hey, I'm Cristian.

I'm a senior full-stack product engineer focused on frontend-heavy product systems, performance, and real-time collaboration. I care about product judgment, strong execution, and thoughtful UI engineering in the same conversation.

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About

I like product work where the interface and the system have to agree.

I am a senior full-stack product engineer based in Buenos Aires, with more than 18 years of experience building frontend-heavy systems, real-time collaboration tools, and product surfaces where speed and interaction quality matter.

My background moves from early company-building work into product engineering at Riverside. That mix makes me comfortable moving between product constraints, UI details, backend contracts, rollout risk, and the operational work needed to ship.

The throughline is ownership. Understand how people actually use the product, keep the architecture as small as the problem allows, improve the experience, and leave the codebase in a state the next team can build on.

Skills

What I bring to a product team.

Frontend product craft

React, TypeScript, Next.js, performance work, interaction details, and product surfaces that need to feel fast and considered.

ReactTypeScriptNext.js

Product systems

Full-stack feature ownership across UI, backend contracts, state, rollout, and production behavior.

Node.jsNestJSAPIs

Performance

User-visible loading, rendering, and bundle work for complex interfaces where responsiveness changes the product experience.

RenderingFCPBundle size

Real-time collaboration

Presence, session state, media workflows, WebSockets, WebRTC, and event-driven systems behind live products.

WebRTCWebSocketsKafka

Founder-level ownership

Comfort moving from ambiguous product constraints to shipped systems, with pragmatic architecture and clear tradeoffs.

ProductRolloutLeadership

Cross-functional engineering collaboration

Clear technical partnership with Product, Design, and other engineers so product constraints, UX tradeoffs, and implementation details stay aligned.

ProductDesignTechnical alignment

Technical rollout strategy

Gradual delivery, feature flags, CI/CD judgment, and production-minded release paths for changes that need to land without drama.

Feature flagsCI/CDRelease safety

AI-assisted engineering

Practical agentic development loops that speed up implementation while keeping senior review and product judgment in place.

CodexClaude CodeCursor

Projects

Products, experiments, and production systems.

Dividir

Live

Mar 2026

ReactViteConvexPWA

A mobile-first expense splitting progressive web app for small groups, trips, dinners, and shared plans.

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next-webmcp

Source

Feb 2026

Next.jsWebMCPTypeScriptApp Router

An experimental Next.js App Router helper library for building WebMCP-powered apps without fighting server/client boundaries.

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Streamix

Sep 2017 - Mar 2021

WebRTCReactReact NativeAWSReal-time

A cloud live video production platform that turns mobile devices into wireless cameras for branded multi-camera broadcasts.

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NextStage

Mar 2026 - Apr 2026

Next.jsAI SDKSQLitePDF

A local-first job application workspace for managing resumes, drafting cover letters, tracking applications, and getting writing assistance.

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Imago.Pics

Feb 2026

E-commerceAI imageryTurborepo

A one-click product photo studio for e-commerce catalogs, built around bulk upload, style selection, and background processing.

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Informia

Mar 2026

Next.jsAI SDKGeminiPDF

A Next.js 16 POC for administrative document extraction and Formulario 752 generation in Buenos Aires province workflows.

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Get in touch

Tell me what you are building.

Send a short note about the role, product, or problem. I read every message and reply when there is a good fit.