/ Case Study
$3M+

That's how much the platform processes annually.
We engineered their personal shopper product.

A global B2B commerce platform needed live video personal shopping for enterprise retailers. Full serverless. Event-driven. Multi-tenant. 16 countries. We built every line of code.

16
Countries
4
Languages
0
Servers
12K+
Launch attendees

/ One session, eight events

Every action is an event. Every event is immutable. Every event is tracked.

session.requested

Customer requests a personal shopper

session.matched

Smart routing finds the best available shopper

notification.sent

WhatsApp or email — customer's preferred channel

session.started

AWS Chime video call begins

product.shared

Product cards pushed to customer screen

cart.updated

Items added to cart in real time

order.created

Checkout completes without leaving the call

survey.completed

NPS captured, analytics updated, recording stored

/ What we built

Full serverless on AWS

Lambda, EventBridge, SQS, DynamoDB. Zero servers. Near-zero idle cost. Auto-scaling to millions of sessions.

Multi-tenant from day one

Hundreds of enterprise retailers on the same infrastructure. Same tables, same queues — zero cross-tenant data leakage.

AWS Chime video

Managed WebRTC with adaptive bitrate, NAT traversal, server-side recording, screen sharing. All browser-based.

Deep commerce integration

Real catalog, real cart, real inventory, real checkout — inside the video call. Not a simplified version. The real platform APIs.

WhatsApp + email notifications

Multi-channel messaging with SQS retry logic, delivery tracking in DynamoDB, and customizable templates per market.

Enterprise analytics + RBAC

15+ metrics per shopper. Session recordings. Chat transcripts. Three permission modules. Full data export.

/ Our role

We built the engineering.
They took it to market.

The platform is a global B2B commerce company providing ecommerce infrastructure to some of the world's largest retailers. They designed the product vision. We made it real — from first commit to production across 16 countries.

/ Stack

AWS LambdaEventBridgeSQSDynamoDBAWS ChimeReactNode.jsWebSocketsWhatsApp API
Full serverless — zero servers, near-zero idle cost
Event-driven — EventBridge + SQS for every action
Multi-tenant — same infra, hundreds of retailers
Designed for millions of sessions from day one
/ 25 min technical deep dive

Read the full architecture breakdown

EventBridge event flows. DynamoDB table design with multi-tenant partition strategy. AWS Chime integration. WhatsApp notification pipeline. SQS queue patterns for critical paths. And what we learned building it.

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/ Your product. Our engineering.

Building a product for
enterprise scale?

We engineered a product that a $3M+ platform launched to enterprise retailers across 16 countries. Serverless, event-driven, multi-tenant — from first commit to production.

Talk to Our Engineering Team

Free architecture consultation. No commitment.