Forward Deployed Engineer Internship Assignment – Xeno • 2025
- Connects and syncs with multiple Shopify stores via API integration (multi-tenancy)
- Ingests Customers, Orders, Products, plus bonus custom events (e.g., cart abandoned)
- Email-authenticated dashboard visualizes total customers, revenue, top customers, more
- Isolated data per store via tenant ID
- Trend charts and creative business insights
- Scheduler/webhook support for continuous data sync
- Clean deployment (Heroku, Render, Railway, Vercel)
| Layer | Technology |
|---|---|
| Backend | Node.js (Express.js) |
| Frontend | React.js / Next.js |
| Database | PostgreSQL / MySQL |
| ORM | Sequelize / Prisma |
| Auth | Email, JWT/Sessions |
| Async | Redis / RabbitMQ (Optional) |
| Charts | Chart.js, Recharts, etc. |
- Create
.envwith DB, API key, JWT configs - Install dependencies:
- Run database migrations
- Start backend and frontend servers
- Deploy via Heroku/Render/Railway/Vercel (follow respective guides)
| Method | Endpoint | Description |
|---|---|---|
| POST | /api/tenant/onboard |
Register a new Shopify store |
| GET | /api/:tenantId/customers |
Get customers for a store |
| GET | /api/:tenantId/orders |
List orders (filter by date-range) |
| GET | /api/:tenantId/products |
Get products per store |
| GET | /api/:tenantId/metrics |
Get dashboard metrics |
| Table | Key Fields |
|---|---|
| Tenants | id, name, shopify_store_id, email |
| Customers | id, tenant_id, name, email, ... |
| Orders | id, tenant_id, customer_id, date, total_amount |
| Products | id, tenant_id, sku, title, ... |
| Events | id, tenant_id, type, payload, ... |
Check out the Demo Video for a walkthrough (max 7 mins):
- Features you built
- How you solved the problem
- Key trade-offs and design choices
- Demo uses development Shopify store and sample data
- Data isolation handled per tenant_id; RBAC is basic
- Real-time sync via webhooks not fully production-level
- Redis/RabbitMQ used optionally for async event ingestion
- Add OAuth, RBAC, SSO for fine-grained access
- Scale sync using event-driven messaging
- Setup CI/CD, monitoring, logging, robust security
- Extend dashboard analytics and business metrics
Built for the Xeno FDE Internship – 2025
Integrate. Adapt. Deliver. Real-world retail engineering.

