Freelance since 2011 · Santo Domingo, Dominican Republic

Systems for Dominican SMBs, clinics and law firms, installed and supported.

Over 15 years building the software your business uses every day. I deliver the system running, migrate your data and answer when something breaks.

No cost Proposal in 48 hours Fixed price in writing

15+ years of experienceFreelance since 2011, not an agency.
You talk to the developerNo middlemen, no call center.
Delivery with support30 days included and an optional subscription.

Products

StockFlow Enterprise: the system your SMB uses every day

If your inventory lives in spreadsheets and invoices are written by hand, every closing is a gamble. StockFlow brings point of sale, inventory, purchasing and invoicing together.

For SMBs that sell and invoice

Know what you have, what you sold and what you earned — without spreadsheet work.

The problem: inventory in spreadsheets, invoices by hand and closings that never match.

StockFlow connects the sale with inventory and invoicing. Every sale deducts stock, every invoice is recorded and reports are generated automatically. It includes migration of your current data and training for your team.

Request a quote

Includes

  • Point of sale and real-time inventory
  • Purchasing, sales and warehouse control
  • NCF/e-CF electronic invoicing
  • Sales, margin and turnover reports
  • Data migration and training
  • Backups and updates in the subscription

DGII compliance depends on your registration and current regulations. We review it before the proposal.

Other systems by industry

Clinics and practices

MedicalOffice Pro

Appointments, records, prescriptions and billing without paper or lost files.

Law firms

LegalRD

Cases, clients, schedule and billing with the full history of every matter at hand.

Human resources

Talentis HR

Employees, payroll and reviews in one place, without loose spreadsheets.

Loans and cooperatives

Prestamos RD

Portfolio, payments and negotiations with a clear history for every client.

Data and artificial intelligence

InsightEngine AI

Upload Excel, PDF or CSV files and get answers and reports without reading every row.

Plans and subscription

Clear plans, no surprises

Every plan includes installation, training and backups. The price depends on users, locations and integrations: you get it in writing within 48 hours.

Basic

To start invoicing and controlling inventory.

  • Point of sale and inventory
  • NCF/e-CF electronic invoicing
  • One location
  • Initial training
  • Support by email and WhatsApp
  • Scheduled backups

One-time setup + monthly subscription

Request a quote

Custom

For clinics, law firms and operations with their own rules.

  • Custom modules
  • Historical data migration
  • Integrations with your current systems
  • Scope and support to be agreed
  • Hands-on launch support

Quote based on scope

Request a quote

What happens if I cancel or want to take my data? It is explained in the frequently asked questions and put in writing before you sign.

Packaged hardware

Smart Plug, installed: turn equipment on and off from your phone

I build the unit, install it and leave it working. You control the appliance from the browser and by voice with Alexa.

It works for water heaters, pumps, air conditioners and other high-draw equipment you want to manage when you are not there. I also install and configure other automation equipment.

Smart Plug

  • Raspberry Pi, AC-DC 110-5V module and solid-state relay in a junction box
  • Web control from your phone or computer
  • Voice on and off with Alexa
  • Installation and setup at your home or business
  • Monthly support and adjustments

The monthly fee covers support and adjustments. Equipment and installation are quoted separately.

How I work

Four steps, no fine print

You know what will happen, what it costs and when it will be delivered before we start.

  1. Assessment

    We talk for 15 minutes. I understand your process and identify what needs to be automated.

  2. Proposal

    Within 48 hours you receive scope, timeline and cost in writing. No surprises.

  3. Development

    I work in increments. Every week you see what is ready and we adjust if needed.

  4. Delivery

    I install, migrate your data and train your team. 30 days of support are included.

Lab

Apps, tools and hardware I also build

They are not the commercial offer, but they show how I work: finished, published and maintained products.

Android apps

Seven published apps: games, music, health and alerts.

Parchís Online

Real-time multiplayer game. Create a room and share the code.

Nepentia

Ten exercises for anxiety and panic, with an SOS button and reminders.

BotonPanico

Panic button with SMS, WhatsApp, Telegram, phone call and GPS location.

TerraVigil

Earthquake alerts from four seismic sources with real-time notifications.

Cometa Neón

One-button arcade game with combos and nine languages. Free, no ads.

Windows security tools

Tools to review your own devices and networks. Use them only with authorization.

6Scan

Network scan: TCP/UDP ports, ping, host discovery and Wi-Fi networks.

6Sight

Web vulnerability scanner: SQLi, XSS and Path Traversal.

Music

Cisura Noise — Fragments EP

Experimental electronic rock. Every track with lyrics and a built-in player.

Resources

Free books about artificial intelligence

Practical guides written in Spanish, with examples and code. Read them online or download the PDF.

AI agents

Automation with AI Agents

Build agent pipelines with any stack: n8n, Python, RAG, MCP and orchestration.

Custom models

How to Train Your Own AI Model

Adapt a language model to your company with fine-tuning, LoRA, QLoRA, RLHF and DPO.

Migration

Migrating Legacy Apps with AI Agents

Migrate an old stack with specialized agents, Strangler Fig, CI/CD and testing.

Frequently asked questions

What people usually ask before starting

How much does a system cost?

It depends on how many users, locations and integrations you need. After the assessment I send a written proposal with a fixed price within 48 hours: one-time setup plus a monthly subscription, with no hidden fees.

How long does it take?

A simple system can take 2 to 4 weeks; a full ERP, 2 to 3 months. The date is set in the proposal and reviewed every week.

Do I need to know about technology?

No. You describe how your business works; I translate that into a system and train your team to use it.

What happens after delivery?

I include 30 days of support for adjustments and questions. After that you can continue with a support, backup and update subscription.

Do I own my data?

Yes. Your data belongs to your business. You can request an export and the exit terms are put in writing before you sign.

Does it comply with the Dominican tax authority (DGII)?

StockFlow includes NCF/e-CF invoicing. Compliance depends on your registration, your configuration and current regulations; we review your case before the proposal.

What happens if I stop paying the subscription?

Before you sign, I explain in writing what the monthly fee covers and what happens if you cancel. Your data can be exported.

Can you work with my current system?

Yes, if it allows integration or data export. We review your case and I tell you clearly what can be migrated and what cannot.

Can I see a demo before deciding?

Yes. You can watch the videos for each system and request a guided demo with sample data. If you want access, I share temporary credentials.

Contact

Tell me what you need

Write to me about what you want to solve. If it is a fit, we start with a 15-minute assessment and I send a fixed-price proposal within 48 hours.

Santo Domingo, Dominican Republic
I answer email personally.

Demo

Demo video. The data shown is fictitious.