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Jafeth V VillarrealBook

We adapt to your business.

Custom AI systems for your business. Your first working version in 30 days.

Book a free consultationSee the dental clinic case
Jafeth Vargas Villarreal, full stack developer
What I build

What I can build for your business.

No jargon: I explain everything in plain words and we build only what you need.

Client management (CRM)

All your clients and their history in one place, instead of scattered spreadsheets.

Inventory control

Know what you have, what's missing and what moves, without counting by hand.

Team management

Who does what, their schedules and what each person is responsible for.

Custom chats and AI agents

Assistants that serve your customers using your business's real information.

Chat automation

Replies and reminders that go out on their own, at the right time.

Chat metrics

How many people write, what they ask and where they drop off.

Traceability of every process

A record of who did what and when, so nothing falls through.

Tailored to you

If your business does something different, so does the system.

For businesses likeDental clinicsAuto shopsCoachesGymsMarketingAgenciesRestaurantsReal estateEducationRetailProfessional servicesAnd any other industry

Dental clinic

Reception was overwhelmed: booking appointments and answering questions took up their whole day.

What was built

  • A system that handles appointments, reminders and patient support.
  • The business numbers in plain view for the owner.
  • Control of which professional sees each patient.
  • Management of the emails sent.
  • Digital patient records.
  • Scheduling for the professionals and the clinic.

What changed

  • Fewer lost clients
  • More traceability in every process
  • Future profit projections
See the clinic's page (Opens in a new tab)

A short, clear path, with you in it.

  1. Free consultation

    You tell me about your business and what's holding it back.

  2. Understand your business

    I look at how you work today before proposing anything.

  3. First version to try

    Something working that you can use and touch.

  4. Adjustments with your team

    We refine it with the people who'll use it every day.

  5. Delivery and support

    I hand it over running and stay close.

Your first working version in 30 days.

Why work with me

What you'll notice from the first week.

  • Commitment and accountability

    What we agree on is what gets delivered, and if something changes, I tell you in time.

  • Customization

    The system adapts to you, not you to the system.

  • One-on-one support

    You talk directly to me, no middlemen or tickets.

  • Short progress cycles

    You see real progress often, not a surprise at the end.

Behind the system there's a person who answers.

Jafeth Vargas Villarreal, full stack developer

I'm Jafeth Vargas Villarreal, a full stack developer from Costa Rica with more than six years of experience building systems across different industries and with teams in several countries.

  • ResponsibleI work in short steps you can review at every stage.
  • HonestIf something isn't worth building, I'll tell you before charging you for it.
  • DedicatedOne project at a time with the person leading it, from diagnosis to delivery.
  • Detail-orientedI care about edge cases: what happens when something fails, not just the happy path.

Tell me about your business.

The first consultation is free and no strings attached. Fill in the form and I'll write to you myself.

  • I read your request personally.
  • I write back through the channel you choose.
  • We set up a call to understand your business.

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