Open to work

Hi, I'm Nicolas.

About

In 2026, with the tools that exist, writing code is the easy part. Picking the right architecture, knowing when to reach for which tool, making sure the whole thing doesn't fall apart at scale — that's where I spend most of my time.

Open to work

Frontend

ReactNext.jsTypeScriptJavascriptTailwind

Backend

Node.jsPostgreSQLGraphQLMongoDB

Tools

FigmaDockerGitBitbucket

Projects

MVP in client testing

Next.jsSupabaseTypeScript

Zenit DC

Management system for an Argentine construction company (paid client project). Replaces Excel, WhatsApp and paper: clients, construction projects, budgets, client payments, expenses, staff and subcontractor payments and per-project photo galleries, all from the phone as an installable PWA. Secured with Row Level Security on every table, Zod validation on every endpoint and private photos with signed URLs. MVP delivered and in client testing.

Private repository · code walkthrough on request

MVP in development

ReactTypeScriptKonva

Riderlab

Riderlab is a web app that makes technical riders and stage plots fast and simple to build, without the clutter and ads of existing tools, for sound engineers and live production teams. I co-founded it and work on the frontend in a two-person team. It is a 2D editor with inputs, outputs, power and structure layers, automatic channel numbering, presets and an input/output table. I wrote the canvas engine of the first version (selection, multi-drag, grid snapping, undo/redo, clipboard) and its PDF rider export, and in the current React + TypeScript version the editor's domain core and most of its tests. The MVP goes to production between November 2026 and January 2027, while the final UI is being designed with graphic artists.

Private repository · code walkthrough on request

ReactViteTailwind

Las Chinas VM

Portfolio site for Las Chinas VM, an event-design business in Villa Mercedes, Argentina (paid client project). Category-filtered gallery with an accessible lightbox, direct contact via WhatsApp and Instagram, scroll animations, and photos optimized to WebP with a custom sharp script.

Code Live site

JavascriptReactMongoDB

Niv0prod

niv0prod is a full-stack music production platform where producers can browse, stream, and download beats, sample packs, loops, and production mixes. Built with React 18 on the frontend and Node.js/Express + MongoDB on the backend, it features Google OAuth authentication, role-based admin panel with full CRUD, drag-and-drop file uploads to Backblaze B2 cloud storage, and a responsive Spotify-style UI with sequential audio playback across catalogs. Deployed on Vercel (frontend) and Render (backend).

Code Live site

TypeScriptExpressRedis

Url Shortener API

URL shortening API with JWT authentication (access/refresh tokens), Redis-cached redirects under 100 ms, click analytics with geolocation, rate limiting and Swagger docs. Built with TypeScript, Express and MongoDB.

Code Live site

Experience

Full Stack Developer · Freelance

Zenit DC · construction company (client)

Jul 2026 — Present

Sole developer of a mobile-first management PWA that replaces Excel, WhatsApp and paper; MVP delivered and in client testing with real projects loaded
Modules for clients, construction projects, budgets by line item, client payments by stage, material and overhead expenses, staff and subcontractor payments, and per-project photo galleries
Next.js 16 (App Router), React 19, strict TypeScript, Supabase (PostgreSQL, Auth, Storage), Tailwind v4 and React Hook Form + Zod, deployed on Vercel
Security: Row Level Security on every table, server-side Zod validation on every endpoint, private photos with signed URLs and CSP/HSTS headers
GitHub Actions CI (type-check, lint and build) and an agentic workflow with Claude Code: project CLAUDE.md and custom skills that scaffold a full CRUD entity
Scope shaped with the client around what he actually needs, with a custom date picker in Argentine format and custom confirmation dialogs

Full Stack Developer · Freelance

Sicilia · music producer (client)

Sep 2026 — Present

Beat store and professional site: Spotify-embedded productions, a catalog with licenses (Basic, Premium, Exclusive) and Mercado Pago Checkout Pro purchases
Architecture with Next.js 16, embedded Payload CMS 3, PostgreSQL and Cloudflare R2; global audio player with Zustand and Howler.js
7-phase delivery plan; setup phase completed with role-based users, media storage on R2 and GitHub Actions CI (lint, typecheck, build)
Architecture decision log, e.g. moving to Next.js 16 because the only Payload-compatible Next.js 15 release had a critical vulnerability

Frontend Developer · Freelance

Las Chinas VM · event design (client)

Aug 2026

Live one-page site with services, work process, gallery, testimonials, Instagram and contact
Category-filtered gallery with a mixed preview, "show more" pagination and an accessible lightbox (Esc to close)
Floating WhatsApp button and Instagram calls to action to turn visits into inquiries
Custom sharp script that converts photos to optimized WebP, lazy-loaded images and scroll animations with IntersectionObserver
React 19, Vite and Tailwind CSS; fully static site deployed on Vercel

Co-founder · Frontend Developer

Riderlab · co-founded project

2025 — Present

Web app that makes stage plots and technical riders fast to build, without the clutter and ads of existing tools; MVP launch planned between November 2026 and January 2027, with the final UI being designed alongside graphic artists
Two-person team: my co-founder leads architecture and the NestJS + PostgreSQL back end; I work on the frontend
Main author of the first editor (Next.js, React, Konva): selection and multi-drag, resize/rotate, grid snapping, undo/redo history, copy/paste/duplicate with keyboard shortcuts and inline text editing
Tree-panel multi-select synced with the canvas through React Context, with tool tabs that switch automatically with the selection
Rider export with jsPDF: PNG/PDF of the stage plus a multi-page technical rider with auto-generated input/output tables
Canvas performance pass: replaced ~40k Konva shapes with a canvas pattern, moved drag positions from state to refs and memoized contexts
Current React + TypeScript + Vite version: implemented the editor's typed domain core (content reducer, schema migration, undo/redo, channel numbering), input presets and the input/output table
Wrote 28 of the project's 39 test files (about 226 Vitest cases)

URL Shortener API · Backend

Personal project

2025

JWT authentication with access/refresh tokens and Google OAuth login via Passport
URL shortening with custom slugs, soft delete and TTL-based expiration
Redis-cached redirects with sub-100 ms responses
Click analytics with geolocation (country, city, region) grouped by day, week or month with date filtering
Rate limiting on auth endpoints (Redis + Upstash) and Swagger documentation
Hosted on Render with MongoDB Atlas and Redis (Upstash)

Niv0Prod · Full Stack

Personal project

2024 — Present

Music platform to browse, stream and download beats, samples, loops and mixes, with a responsive Spotify-style UI
Google OAuth login, JWT verification, role-based access (user/admin) and protected route guards
Admin panel with dashboard stats, full CRUD for playlists, beats, samples, loops and users, and drag-and-drop file uploads
Audio player with sequential autoplay, mp3/wav support and active track highlighting
Express REST API with MongoDB/Mongoose models, indexes and validations; Backblaze B2 uploads with automatic retry and batch support
Rate limiting, Helmet security headers and CORS whitelist; Docker container deployed on Render, frontend on Vercel

Education

Full Stack Web Development Diploma

Universidad Tecnológica Nacional (UTN)

2023

Comprehensive frontend and backend training: HTML5, CSS3, JavaScript, PHP, MySQL, API consumption and object-oriented programming.

Let's build
something.

Open to work

Hi, I'm Nicolas.

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About

Open to work

Frontend

ReactNext.jsTypeScriptJavascriptTailwind

Backend

Node.jsPostgreSQLGraphQLMongoDB

Tools

FigmaDockerGitBitbucket