Senior Software Development Engineer 3 (SDE 3) [Ordering Applications]
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About the Role
Design and build scalable backend services for e-commerce, focusing on payment systems, microservices, and cross-team collaboration with strong technical leadership.
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 Ordering Applications squad owns the critical path from product selection to purchase confirmation.
Our systems handle payment orchestration, cart management, checkout flows, and promotional engines that directly drive revenue for Lulu's e-commerce platform.
Every transaction flows through our stack, so reliability, speed, and correctness are non-negotiable.
What You'Ll Work On
- Design and build transactional backend services for cart, checkout, and payment orchestration with strong consistency guarantees
- Integrate with third-party payment gateways and fraud detection systems, ensuring PCI compliance and secure handling of sensitive data
- Build and maintain the promotions engine, supporting complex discount rules, coupon management, and dynamic pricing at scale
- Architect idempotent payment flows that gracefully handle retries, partial failures, and reconciliation across distributed systems
- Develop high-throughput APIs that support real-time cart updates, price calculations, and inventory reservation under peak traffic
- Drive observability across the ordering pipeline with structured logging, distributed tracing, and real-time alerting on transaction health
- Collaborate with product, finance, and fraud teams to translate business requirements into robust, scalable backend solutions
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