Senior Software Development Engineer 3 (SDE 3) [Delivery Applications]
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About the Role
As a Backend Engineer, you will design and maintain logistics systems, drive technical strategy, and ensure high-quality software delivery using microservices and cloud platforms.
Key Skills for This Role
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About The Role
We are building one of the region's most ambitious e-commerce platforms: high-traffic, multi-region, and engineered for scale.
As a Backend Engineer at Lulu, you will own critical systems that millions of customers depend on every day, from product discovery through to delivery.
You define how systems are built, not just what gets built.
You own multi-quarter, multi-team goals, drive technical strategy, and set the standard for engineering excellence within and beyond your team.
About The Squad
The Delivery Applications squad powers everything that happens after a customer clicks 'Place Order'.
We own the Delivery Promise Service, Warehouse Management System (WMS), and Transport Management System (TMS) — the backbone of Lulu's fulfillment operations.
Our systems coordinate warehouse picking, packing, carrier allocation, and last-mile delivery to ensure customers get their orders on time.
Core services:
Delivery Promise Service, Warehouse Management System (WMS), Transport Management System (TMS)
What You'Ll Work On
- Build and scale the Delivery Promise Service that calculates accurate delivery estimates based on inventory location, carrier capacity, and real-time logistics data
- Design and maintain WMS backend services for inventory tracking, pick-pack-ship workflows, and warehouse slot management
- Develop TMS components for carrier selection, route optimization, shipment tracking, and delivery status propagation
- Architect event-driven workflows using Kafka to coordinate handoffs between warehouse, transport, and customer-facing systems
- Build integrations with third-party logistics providers, carrier APIs, and last-mile delivery partners
- Implement resilient, fault-tolerant systems that handle high-volume order spikes during sales events and seasonal peaks
- Drive observability across the fulfillment pipeline with structured logging, metrics dashboards, and proactive alerting on SLA breaches
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