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Andres O.
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Andres O.

Full-Stack Developer | React | Next.js | TypeScript | Supabase | AI

I design, build, and ship SaaS products end to end: realtime platforms, AI-powered tools, and mobile apps, all in production with real users. My current stack: Next.js, React, TypeScript, React Native (Expo), NestJS, and PostgreSQL with Drizzle ORM (Supabase or Neon), organized in Turborepo and deployed to Vercel and Google Cloud Run. I also build AI features for production use: RAG with pgvector, embeddings, and LLM APIs — with review discipline, not vibe-coded. What I bring to your project: - Clean architecture and separation of concerns, from database schema to deployed UI - Full ownership: frontend, backend, database, integrations, and deployment without handing off pieces - AI-fluent workflow: I use Claude Code daily to move fast, and I review everything before it ships - Enterprise background: Fortune 500 experience in development, infrastructure, and analysis before going fully independent - Fast communication during CST hours, usually within 5–10 minutes Recent work includes an AI document intelligence platform for law firms (RAG, pgvector, multi-tenant), a document builder SaaS with a PDF generation microservice, and a realtime social platform with messaging, media pipelines, and Stripe billing. I focus on greenfield SaaS and modern-stack products, and I'm equally comfortable working within an established codebase and its conventions.

🇲🇽Aguascalientes, Mexico$50/hr100% JSS4.84 (65)Since Oct 2011

Earnings and projects

MRR
$3.8k

Last 6 months ÷ 6

World#8,676 / 412k
🇲🇽Country#82 / 3,563
Revenue, last 30 days
$7.2k

Last 6 months: $23k

World#2,864 / 412k
🇲🇽Country#22 / 3,563
Total earnings
$531k

Billed in all: $543k

World#2,423 / 412k
🇲🇽Country#12 / 3,563
Per project
$6.1k

$5.7k in the last 6 months

World#28,342 / 412k
🇲🇽Country#372 / 3,563
Projects, last 6 months
4
25% fixed75% hourly
World#51,813 / 412k
🇲🇽Country#291 / 3,563
Projects in all
87

Across 108 contracts

62% fixed38% hourly
World#33,169 / 412k
🇲🇽Country#144 / 3,563

Earnings, last 30 days

$543k+$7.2k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$535k$540k$545kOct 8Oct 23Nov 7

Skill rankings: Top 2% in WordPress

Ranked by MRR among everyone on Upwork with the skill.

  1. #137NestJS3,757 freelancers · 🇲🇽 #2Top 4%
  2. #156Google Cloud Platform2,939 freelancers · 🇲🇽 #3Top 5%
  3. #192Tailwind CSS6,978 freelancers · 🇲🇽 #1Top 3%
  4. #237Supabase4,116 freelancers · 🇲🇽 #1Top 6%
  5. #331AI App Development4,708 freelancers · 🇲🇽 #1Top 7%
  6. #338Laravel12,549 freelancers · 🇲🇽 #1Top 3%
  7. #416React Native10,486 freelancers · 🇲🇽 #2Top 4%
  8. #605PostgreSQL12,850 freelancers · 🇲🇽 #4Top 5%