Software Development Engineer ; SDE Customer Squad

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.

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.

• 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.

Own and deliver projects in service of quarterly goals on the team, independently identifying the right solutions to solve ambiguous, open‑ended problems. Deliver your team’s goals on time and with a high standard of quality, ensuring your work has the greatest customer impact. Make informed decisions by consulting the right stakeholders and balancing details with the big picture, executing against the spirit of requirements.

Decompose business problems into solutions with multiple interacting components, designing software that is testable, debuggable, and not easily misused. Write code that captures the essential nature of the solution—flexible, reusable, efficient, and adaptable to changing requirements. Ensure high code quality in reviews, set up best practices and coding standards, and foster an effective code review culture. Independently resolve bugs and system issues during on‑call, and proactively reduce toil and tech debt.

Bring an AI‑first mindset to your work—actively leverage AI tools and assistants to maximize productivity, accelerate development cycles, and amplify your engineering impact.

Serve as a technical lead for projects, defining and delivering well‑scoped milestones. Actively level up less‑experienced team members through mentorship, guidance, and setting a strong example. Build relationships across teams, proactively communicate and coordinate requirements with other engineering groups. Contribute to interviewing and assessing candidates with advanced domain‑specific and leveling interviews.

• Strong proficiency in at least one backend language:
  Python, Java, or Node.js.
• Hands‑on experience designing and building microservices and RESTful/Graph
  
  QL APIs.
• Solid experience with cloud platforms (GCP, AWS, or Azure) including managed services, deployments, and monitoring.
• Working knowledge of containerization with Docker and orchestration with Kubernetes.
• Experience with CI/CD pipelines (Jenkins, Git Hub Actions, or similar) and automated testing.
• Strong understanding of relational databases (Postgre
  
  SQL, MySQL) including query optimization and schema design.
• Experience with message brokers / event‑driven architectures (Kafka, SQS/SNS, Pub/Sub, or Rabbit
  
  MQ).
• Familiarity with caching strategies (Redis, Memcached) and CDN concepts.
• Solid understanding of API security fundamentals: authentication, authorization, OAuth
  2.0, JWT.

• Domain experience in e‑commerce, retail, logistics, or similar high‑traffic consumer platforms.
• Experience…