Something not here?
If the problem is technical and software or hardware solves it, write to me: I will tell you whether I have worked on it and how I would approach it.
Get in touchwhat I do
What I do
The areas I work in, from the API to the physical server.
01 BACKEND Systems and APIs Complete management systems and the APIs behind them: payroll, employees, inventory, point of sale and internal operations, on Spring Boot or FastAPI. DURATION 5 to 12 months View details 02 WEB Websites Corporate and presentation sites: fast, indexable and free of generic templates, with their domain, certificate and deployment. DURATION ≈ 1 month View details 03 IOT Hardware integration Biometric and card readers (Hikvision, ZKTeco, Suprema), Mercado Pago and BBVA payment terminals, NFC/RFID, serial communication, ESC/POS thermal printers and ESP32 boards. View details 04 SQL Databases Modelling in PostgreSQL, MySQL or SQLite: referential integrity, indexes, versioned migrations with Flyway, backups and slow queries. View details 05 INFRA Servers and infrastructure From rack to deployment: installation and setup of HPE and Lenovo servers, plus the Linux, Docker and Nginx running on top. View details 06 NET Networks Network design and installation with Ubiquiti (UniFi) gear: switches, access points, VLANs, segmentation, cabling and link monitoring. View details 07 MIGRATE Migration and automation Modernize what already exists and automate the repetitive: move a system to a maintainable stack and turn manual work into tasks that run on their own. View details 08 OTHER
Frequently asked questions
- How long does a project take?
- It depends on the scope. A website takes about a month; a complete management system, with its API, modules and interface, runs from five to twelve months. Hardware integrations depend on the equipment already installed: if the reader exposes its protocol, it moves fast.
- Can you work on the system I already have?
- Yes, and it is a large part of what I do. The Maxipet platform was migrated from Flask to Spring Boot 3 keeping the same PostgreSQL and the same users, without stopping operations at any point. The cutover is planned with a rollback path: if something goes wrong, you are back on the previous system the same day.
- Can you connect the time clock or reader already installed?
- Yes. I work with Hikvision over ISAPI, ZKTeco over MIFARE and Suprema, as well as ESC/POS thermal printers and Mercado Pago and BBVA payment terminals. A typical case: the time clock was already recording attendance, but payroll was still calculated by hand; the system closes that gap end to end.
- Do you work outside Puebla?
- Development, integration and deployment work the same remotely, so location changes nothing. What does require being on site is the physical work: rack-mounting a server, running structured cabling or setting up the network at a location.
- Can I see something of yours running?
- Yes. The Skilled Proyectos Industriales site is live at skilled.mx, and the car wash point of sale has a downloadable installer. Every project page explains the problem it solved, how it is built and what it integrates with.
- How much does it cost?
- There is no price list because no two systems are alike: cost comes from the scope, how many modules it needs and what it has to integrate with. Write to me with what you need and I will tell you whether I have worked on it and how I would approach it, before talking numbers.