I will build a custom CRM web app for your business

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Alejandro O

About this gig

bMost CRM problems are not a data problem. They are a workflow problem. You already know who your leads are. What you are missing is a system that tracks them, follows up, and shows you the numbers that actually decide whether you get paid.


I build custom CRMs end to end, alone. I shipped a full production CRM solo in weeks and I run a live multi-tenant SaaS with a paying client right now. That means I do not hand you code and disappear. I architect the data model, build the frontend and backend, wire the integrations, and make sure it works in the real world.


Stack: React, TypeScript, Node, and Supabase or Firebase for auth and database. Stripe if you need billing. Clean, documented code you own outright.


I have a finance and analytics background (dual master's), so I build the dashboard around the metrics that move money, not vanity charts. Pipeline stages, follow-up tracking, conversion, revenue per client.


Tell me what your sales process looks like today and where deals fall through. I will map it into a working system. What does your current pipeline run on?


Get to know Alejandro O

Alejandro O

FullStack Engineer

  • FromUnited States
  • Member sinceJul 2026
  • Languages

    English, Spanish
I am a full-stack engineer who builds and operates complete production SaaS solo, from front to back. I specialize in multi-tenant architecture, Next.js, and Supabase/PostgreSQL, shipping live platforms trusted by institutional clients. My dual master's background in business analytics allows me to bring a unique product and data lens to every technical build I undertake.