I build internal systems and ERPs for businesses: customers, inventory, orders, reports and per-user permissions. In stages, with the code under your company's name.
5-business-day assessment · US$590 + VAT, credited if you hire
I reply within 1 hour during business hours and within 24 hours outside them.
Marco Orta · Mexico City · +10 years in production · I reply within 1 hour during business hours
No stage without a date and a price. What doesn't fit in V1 is written down as «out of scope», not as a promise.
You run on spreadsheets, chats and manual tasks that only one person understands.
There is rework and errors because the process isn't written down anywhere.
You need per-user roles and a record of who changed what.
You want to centralize information without losing control of your data.
The current flow drawn with its states, owners and the points where time is lost, to decide what goes first.
The module that hurts most comes first. Each one ships working and is validated with the people who use it.
Each user sees and changes only their own, and every change is recorded with who, when and what.
Email, APIs, spreadsheets, payments and the systems you already use, with the data matching on both sides.
How it runs, how it is backed up and how it is deployed. Repository and servers under your company's name.
Adjustments after go-live, when the cases nobody foresaw show up.
Complex migrations and data cleanup are quoted separately; that is said in the assessment, not halfway through.
US$590
fixed price · 5 business days
Goals, rules and risks of the current flow, V1 scope and a fixed price per stage. Credited in full if you hire.
from US$2,790
fixed price after the assessment
The entities, modules and integrations of the agreed scope, with weekly deliveries and initial support.
per stage
fixed price for each stage
New modules or changes once V1 is in use. Each stage is quoted before it starts, with no open-ended hours.
Prices in USD, plus VAT. Hosting and third-party services are paid by your company directly; I add nothing on top.
2 to 5 days
I gather goals, rules and risks of the current flow. This is the assessment.
3 to 7 days
We agree on the V1 scope, the entities and the order of the modules.
2 to 6 weeks
Weekly deliveries validated by the people who use the system.
1 week
Short training, adjustments and stabilization.
You see the scope and the price in writing before we start. If anything fails within 90 days, I fix it at no cost. If it doesn't end up as we agreed, I return your deposit.
Domain, hosting, email and access stay under your business name. If you switch providers, you leave with everything.
Each stage has a written scope, price and date. If something changes, it is agreed before it is done.
Real client Laravel · PHP · MySQL
Customers, contracts, delivery notes with PDF, inventory with audit log, permissions and Excel reports, in a single system.
6 modules customers, products, delivery notes, inventory, users and reports
Real client Laravel · Quasar · Capacitor
Project management, accounts, payments and fund disbursement to beneficiaries, with identity verification, push notifications and Excel reports.
3 platforms web, Android and iOS from one codebase
Real client PHP · WooCommerce · MySQL
Custom development where the platform fell short, inventory integration with the ERP and, when moving to Shopify, rescue of the blog and the Search Console history.
6 years in production, 2019 to 2025
Only if that makes sense. I usually build what your operation needs, without loading the project with modules you won't use.
Yes. A useful V1 comes first and then it evolves in stages, each with its own fixed price.
Your company. The code lives in a repository under your business name and access is defined from day one.
Authentication, role-based permissions and a change log. Advanced requirements (external audits, certifications) are planned separately.
In most cases, yes: email, APIs, spreadsheets, payments, accounting tools. It is validated in the assessment, before the build is charged.
The assessment costs US$590 + VAT and is credited if you hire. Building a V1 starts at US$2,790 + VAT at a fixed price; the exact amount comes out of the assessment, not from a guess. Complex migrations and data cleanup are quoted separately.
You do. The code lives in a repository under your company's name from day one, along with access and documentation. If you ever switch providers, you leave with everything.
I reply within 1 hour during business hours and within 24 hours outside them.
In stages, at a fixed price agreed in writing before we start. No open-ended hours: if the scope changes, we agree on it before doing it. You can pay by card, bank transfer or OXXO.
Two lines are enough (what is done today, in which tool and who uses it) and I'll tell you whether the assessment makes sense or something simpler does. I reply within 1 hour during business hours and within 24 hours outside them.