Senior Software Development Engineer 3 (SDE 3) [Customer Applications]
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Key skills for this role
About the Role
Design and build backend systems for e-commerce, focusing on identity services, order tracking, and refunds, using Python, microservices, and cloud technologies.
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 Customer Applications squad owns the systems that shape how customers interact with Lulu after signing up.
From identity and authentication to account management, order tracking, and refunds — we build the services that earn and maintain customer trust.
Our work directly impacts retention, satisfaction, and lifetime value.
Core services:
What You'Ll Work On
- Design and build Identity Services including authentication, authorization, session management, and SSO integrations using OAuth 2.0 and JWT
- Develop and maintain account management APIs covering profile updates, preferences, address book, and communication settings
- Build real-time order tracking services that aggregate status updates from warehouse, transport, and delivery systems into a unified customer view
- Architect the refunds platform handling return eligibility, refund calculations, payment reversals, and wallet credits across multiple payment methods
- Implement secure, performant APIs that protect customer PII while enabling personalized experiences
- Drive cross-team coordination to ensure order lifecycle events flow seamlessly from checkout through delivery to post-order support
- Maintain strong observability with structured logging, customer journey tracing, and alerting on degraded experiences.
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