By two ex-BigCommerce · Solutions Engineer + Account Director

B2C & B2B eCommerce built by someone who was on the other side.

We design, build and maintain online stores that sell — from theme and checkout to integrations and ongoing support. No agencies that vanish after launch.

Platforms we know inside out BigCommerce Shopify Headless / MACH WordPress / Woo
12+
years in eCommerce & SaaS, LATAM and US
2 ex-BC
Solutions Engineer + Account Director from BigCommerce
B2C·B2B
storefronts, catalogs & wholesale portals
100%
direct support, no middlemen

Everything your store needs, end to end

We don't just ship a pretty site. We build your full eCommerce operation and keep it growing.

Custom design & themes

Stencil themes (BigCommerce), Liquid (Shopify) or headless frontends with Next.js. On-brand, fast and built to convert.

Integrations & APIs

ERP, inventory, invoicing, payment gateways (Stripe, MercadoPago), shipping and real-time sync via REST/GraphQL.

B2B & wholesale

Price lists, customer groups, quotes, account-based ordering and purchasing portals for distributors and wholesalers.

Migrations without losing sales

From Woo, Magento or legacy carts to BigCommerce or Shopify. Data, SEO and redirects handled so you keep your rankings.

Optimization & conversion

Speed, checkout, analytics (GA4/GTM) and experiments. Data-driven decisions to sell more with the same traffic.

Maintenance & support

Monthly plans: monitoring, improvements, new features and direct response. Your store isn't left alone after launch.

Backed by two ex-BigCommerce, not by an agency learning on your project

Gran Comercio is run by a former Solutions Engineer and a former Account Director from BigCommerce, who worked with clients across LATAM and part of the US. The mix of technical and business perspective changes how a store gets built — and how it grows.

The platform from the insideAPI limits, best practices and tricks that aren't in the public docs.
Technical + commercialArchitecture and implementation on one side; account strategy, business and retention on the other.
AI as part of the stackFaster implementation with artificial intelligence and automation, together with NodoLab.
LATAM and USProjects in Spanish and English, with context on both markets, payments and logistics.
The team · Ex-BigCommerce
JP
JPCo-founder · former Solutions Engineer
JM
JMCo-founder · former Account Director

Between us we've been on all three sides of eCommerce: the vendor (BigCommerce), the customer relationship and the implementation. Our zone is where business meets code — we design the flow, write the integration and answer when something breaks.

BigCommerce Stencil Shopify Headless / MACH Next.js AI / Automation Stripe · MercadoPago

adrian.com.mx — streetwear on BigCommerce

adrian.com.mx
adrian.com.mx online store — streetwear on BigCommerce
Fashion retail · BigCommerce
"Custom theme, real-time inventory sync and a store that holds up through drops without crashing."
adrian.com.mx logo
adrian.com.mxStreetwear brand · Colima, Mexico
Visit the store →
Custom theme
Stencil tailored to the brand
.NET sync
Real-time inventory via API
+10 widgets
custom functionality on the store

From idea to sale, no surprises

01

Discovery

We understand your business, catalog and operation. We define scope and the right platform.

02

Design & build

Theme, product pages, checkout and integrations. Reviewable progress, not a black box.

03

Launch

Data migration, SEO, testing and a careful go-live. No lost sales or rankings.

04

Growth

Ongoing support, improvements and new features month over month. The store evolves with you.

Part of a tech group and Mexico's eCommerce ecosystem

We don't work in isolation. AI is solved with NodoLab, market data comes first-hand through eb2b.io, and we're inside the largest eCommerce community in the country.

What you usually want to know

Do you only work with BigCommerce? +

No. BigCommerce is where we go deepest thanks to direct experience, but we also build on Shopify, headless frontends with Next.js and stores on WordPress/WooCommerce. We recommend the platform that serves your business best, not the one that's easiest for us.

Do you build B2B / wholesale stores? +

Yes. Per-customer price lists, groups, quotes, account-based ordering and purchasing portals for distributors. B2B is one of our specialties.

What happens after launch? +

We offer monthly maintenance plans: monitoring, improvements, new features and direct support. The store isn't abandoned — it keeps growing with your business.

Do you work with clients outside Mexico? +

Yes. We operate in Spanish and English, with projects across LATAM and the United States. We handle payments, taxes and logistics context for both markets.

How do we start? +

Message us on WhatsApp with a short description of your project. We schedule a discovery call, define scope and send you a clear proposal with timeline and pricing.

Ready for a store that actually sells?

Tell us about your project. We reply directly — no endless forms, no sales reps in between.

Message us on WhatsApp