A clean, modern product grid displayed on a laptop and tablet side by side, each screen showing different views of the same flexible e-commerce storefront: customizable product cards, filter controls, and a streamlined checkout flow. They rest on a dark, textured concrete desk with a few minimal tech objects: a wireless keyboard, noise-canceling headphones, and a slim notebook. Overhead warm pendant lighting creates soft pools of light and subtle reflections on the device edges. Photographic realism, shot from a slightly elevated angle using rule-of-thirds composition. The atmosphere feels efficient, sophisticated, and focused on tailored alternatives to generic Shopify-style stores.

Built for scaling e‑commerce

Based in Seattle, JB Test Agency designs and builds custom e‑commerce stacks that grow with your business, replacing rigid templates with architecture you control, not a vendor.

Services

A row of black, hot-swappable server drives and network switches in a compact, glass-fronted rack, glowing with small status LEDs, representing robust e-commerce infrastructure. The rack stands against a matte charcoal wall in a minimalist tech operations room, with neatly routed cables and a nearby wall-mounted display showing an abstract uptime and performance dashboard. Cool, diffused overhead LED lighting and a faint blue accent light from below create a calm, reliable feeling. Photographic realism, low-angle three-quarter perspective, sharp focus with subtle background blur. The overall mood is stable, secure, and built for scaling online stores without downtime or bottlenecks.

Custom storefront design and development tailored to your brand and catalog, optimized for performance, accessibility, and conversion from day one.

A large, wall-mounted ultra-wide display filled with an intricate visual map of an e-commerce architecture: abstract nodes and connecting lines representing APIs, payment gateways, inventory systems, and fulfillment flows, all color-coded and cleanly designed. Below, a long walnut table holds open laptops and tablets showcasing different storefront designs. The room has floor-to-ceiling windows revealing a blurred city skyline, with soft overcast daylight gently illuminating the scene. Photographic realism, shot from a slightly elevated, wide-angle viewpoint with strong depth of field. The atmosphere is strategic and forward-looking, highlighting the complexity and flexibility of bespoke e-commerce builds beyond typical hosted platforms.

API‑driven commerce architecture, integrating payments, inventory, ERP, and marketing tools so you escape platform lock‑in and scale without rebuilding later.

Testimonials

Rating: 5 out of 5.

JB Test Agency rebuilt our store with zero downtime, and revenue jumped as we finally ditched Shopify limits; their team felt like an extension of ours.

— Aya Nakamura

Rating: 4 out of 5.

Moving off Shopify was daunting, but JB Test Agency guided every step and delivered a faster, more flexible platform our marketing teams enjoy using today.

— Lila Patel

Rating: 4 out of 5.

Their custom checkout and inventory integration scaled effortlessly during our peak season, without outages and plug‑in conflicts we battled on Shopify.

— Mateo García

Rating: 5 out of 5.

We finally have a storefront tailored to our complex pricing and B2B workflows; JB Test Agency delivered on time and made future changes easy, not terrifying.

— Aya Nakamura

Visit us

Seattle, WA

Hours

By appointment, weekdays only

Phone

(123) 456-7890