Industries · Retail & online stores

IT support for retail stores and online shops in Miami

From the register at the counter to the store that sells overnight. We look after the technology in your shop and the online store behind it, and we’re plain about what we can promise.

Retail checkout counter with a point of sale terminal and card reader
What we look afterRegisters and card readersStore Wi-FiYour online storeCameras and phones
What a shop runs on

The things that stop a sale when they stop working

Point of sale

Registers, cash drawers and receipt printers. When the till won’t open, nothing else matters.

Card terminals

The pin pad, the connection behind it and the end-of-day settlement. Card payments come with rules.

Store network and Wi-Fi

Metal shelving, mirrors and a full shop floor eat signal. Coverage has to be designed for your space.

Scanners and label printers

They drop off the network and nobody knows why. It’s usually the setup, not the hardware.

Stock and inventory

The shelf, the system and the website should show the same number.

Cameras and recording

Cameras that actually record, kept long enough to be useful, viewable safely from your phone.

The back office

The computer with the accounts, payroll and supplier files. Often the least protected one.

Guest Wi-Fi

Customers want Wi-Fi. It must never share a network with the registers or the back office.

Phones and orders

The line customers call, the line suppliers call, and a way to answer both when the shop is busy.

What we do

In the shop, and behind the counter

Cabling and store Wi-Fi

Cat6 and fiber, access points placed for the floor plan, registers wired. Our own crew.

Keeping things apart

Registers, card terminals, cameras and guest Wi-Fi on separate networks, so a customer laptop can’t reach the till.

Security and updates

Firewalls, two-step sign-in, antivirus that reports back, and updates on a schedule you approve.

Backups and a way back

Copies off site and restores tested, for the office computer, the server and the online store.

The online store

Build, move, speed up or fix: hosting, checkout, and connections to stock, accounting and marketplaces.

One supplier for both halves

The shop network and the website with one company, so an order that fails has one owner.

Your online store

The platforms we build on and the marketplaces we connect

WooCommerce and WordPress

Self-hosted and yours, on hosting we already run.

Shopify

Hosted and simple day to day. We handle the theme, apps, data and connections.

Magento and Adobe Commerce

For large catalogs and complicated rules.

BigCommerce and PrestaShop

Hosted or self-hosted, depending on what you need.

OpenCart, CS-Cart and Odoo

From a focused catalog on a tight budget to store, stock and accounting in one system.

Marketplaces

Amazon, eBay, Walmart and Newegg, with listings, stock and orders kept in step with your store.

Questions we get

What retailers ask us

Can you make us PCI compliant, or PCI certified?

Nobody issues a PCI certificate: the PCI Security Standards Council doesn’t certify merchants. Depending on how many card transactions you take, you fill in a self-assessment questionnaire or bring in a qualified assessor. We do the technical half (network separation, firewalls, sign-in rules, logging, updates and the evidence) and help you answer the questionnaire honestly. Compliance stays yours; we help you get there and stay there.

We use a hosted checkout, so PCI is not our problem, right?

Not quite. Since PCI DSS version 4, two requirements apply even when the payment page is hosted, as long as any third-party script loads on your page: every script on a payment page must be authorized and listed (6.4.3), and something must watch that page for unauthorized changes (11.6.1). This is how card skimming through a website gets caught.

Do you build online stores as well as fix the shop?

Yes, and that’s the point of one company doing both. We build and look after stores on WooCommerce, Shopify, Magento, BigCommerce, PrestaShop, OpenCart, CS-Cart and Odoo, and build from scratch when nothing off the shelf fits.

Our shop Wi-Fi drops out. Can you fix it?

Usually, and usually it’s a design problem. Metal shelving, mirrors, fridges and a full shop floor absorb signal. We survey the space as it is, place the access points for that, and run the cabling ourselves.

Should customers be on our Wi-Fi at all?

They can be, on their own network. Guest Wi-Fi must not reach the registers, card terminals, cameras or back office.

What happens if something breaks on a Saturday?

After-hours and weekend work is available and the rate is set in your agreement. We don’t advertise a response time we can’t stand behind for every client.

How much does it cost?

For the shop we charge per device, not per user; every rate is on our Managed IT page. Website and store work is quoted per project.

Is the first visit free?

Yes. We look at what you have, tell you what it would take, and you decide. No cost and no obligation.

What clients say

Rated 5.0 on Google

5.011 reviews on Google
★★★★★
“Super recomendado, llevo años trabajando con Alejandro y siempre está disponible, hace muy bien su trabajo, es muy profesional.”
SSergio L.Jul 2026 · Google
★★★★★
“Very professional and productive. Always goes the extra mile and makes it all worth it!”
JJoaquin O.Jul 2026 · Google
★★★★★
“Excellent service! Alejandro is very professional, friendly, and attentive from beginning to end. Everything was done on time and the quality of the work exceeded my expectations.”
EEduardo V.Jul 2026 · Google
★★★★★
“They are extremely reliable and always respond incredibly quickly whenever an issue comes up. What I appreciate most is that Mr. Barreras doesn’t just fix the problem and disappear. He keeps track of ongoing issues, follows up, and gives us updates along the way.”
BBarbra B.Jul 2026 · Google
★★★★★
“Barreras IT brinda un excelente servicio, con gran profesionalidad y siempre, por muy difícil que esté la situación, encuentra la solución a los problemas.”
MMauricio D.Feb 2023 · Google
★★★★★
“Mr. Barreras designed the most reliable and optimal solution for our system. Customer service is excellent and responsive.”
RRaul C.Feb 2023 · Google

Start with a free IT assessment

Tell us what you run today and where it hurts. We’ll tell you what it would take, at no cost and with no obligation.

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