Software Development Engineer 3 (Ecommerce)

About the Company We are building one of the region's most ambitious e-commerce platforms: high-traffic, multi-region, and engineered for scale. About the Role As a Backend Engineer, you will own critical systems that millions of customers depend on every day, from product discovery through to delivery. Responsibilities • 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 multi-quarter, multi-team product or platform goals, defining technical solutions that level up the entire team • Make independent technical decisions in the face of open-ended requirements, with a deep understanding of business context and customer needs • Drive cross-team or cross-discipline initiatives, optimizing beyond your immediate team for broader organizational impact • Design the software and systems in your area of ownership, ensuring they meet their design objectives and align with longer-term business needs • Handle complex software modules that are logically dense — whether from business, idempotence, robustness, or scalability requirements • Simplify code and infrastructure, prioritizing tasks that measurably reduce maintenance and migration costs • Preemptively identify and resolve technical risks before they jeopardize projects; resolve cross-team dependencies early • Debug and reproduce non-deterministic bugs and system issues that would normally escape less experienced engineers • Champion an AI-first engineering culture — actively adopt and advocate for AI tools and assistants to maximize productivity, accelerate delivery, and multiply your team's impact • Define the technical roadmap for complex projects, provide leadership for those executing on it, and generate excitement for the team's strategy • Set and hold the bar for quality and best practices via code and design reviews • Act as a Culture Leader — partner with your manager to set the cultural tone, foster psychological safety, and champion inclusive practices • Coach and mentor teammates, offering direct and actionable feedback delivered with empathy to help others grow into the next level • Represent mission, strategy, and technical challenges to candidates in a compelling way Qualifications • Strong proficiency in at least one backend language: Python, Java, or Node.js, with deep understanding of language internals and performance characteristics • Proven track record of designing, building, and operating microservices architectures at scale in production • Deep experience with cloud platforms (GCP, AWS, or Azure) including architecture decisions, cost optimization, and multi-region deployments • Expert-level knowledge of containerization (Docker) and orchestration (Kubernetes) in production environments • Strong experience with CI/CD pipelines, deployment strategies (blue-green, canary), and automated quality gates • Advanced database skills: query optimization, sharding strategies, replication, and data modeling for high-throughput systems • Extensive experience with event-driven architectures and message brokers (Kafka, SQS/SNS, Pub/Sub) at scale • Deep understanding of caching layers (Redis, Memcached, CDN) and their role in system performance and reliability • Strong grasp of API security, OAuth 2.0, JWT, API gateway patterns, and WAF configurations • Domain experience in e-commerce, retail, logistics, supply chain, or similar high-traffic consumer platforms — you understand the business domain, not just the technology You may also register your profile through our website and apply here: https://nadia-me.com/job/details/617 Show more Show less

Strong proficiency in at least one backend language: Python, Java, or Node.js, with deep understanding of language internals and performance characteristics. Proven track record of designing, building, and operating microservices architectures at scale in production. Deep experience with cloud platforms (GCP, AWS, or Azure) including architecture decisions, cost optimization, and multi-region deployments. Expert-level knowledge of containerization (Docker) and orchestration (Kubernetes) in production environments. Strong experience with CI/CD pipelines, deployment strategies (blue-green, canary), and automated quality gates. Advanced database skills: query optimization, sharding strategies, replication, and data modeling for high-throughput systems. Extensive experience with event-driven architectures and message brokers (Kafka, SQS/SNS, Pub/Sub) at scale. Deep understanding of caching layers (Redis, Memcached, CDN) and their role in system performance and reliability. Strong grasp of API security, OAuth 2.0, JWT, API gateway patterns, and WAF configurations. Domain experience in e-commerce, retail, logistics, supply chain, or similar high-traffic consumer platforms — you understand the business domain, not just the technology.

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 multi-quarter, multi-team product or platform goals, defining technical solutions that level up the entire team. Make independent technical decisions in the face of open-ended requirements, with a deep understanding of business context and customer needs. Drive cross-team or cross-discipline initiatives, optimizing beyond your immediate team for broader organizational impact. Design the software and systems in your area of ownership, ensuring they meet their design objectives and align with longer-term business needs. Handle complex software modules that are logically dense — whether from business, idempotence, robustness, or scalability requirements. Simplify code and infrastructure, prioritizing tasks that measurably reduce maintenance and migration costs. Preemptively identify and resolve technical risks before they jeopardize projects; resolve cross-team dependencies early. Debug and reproduce non-deterministic bugs and system issues that would normally escape less experienced engineers. Champion an AI-first engineering culture — actively adopt and advocate for AI tools and assistants to maximize productivity, accelerate delivery, and multiply your team's impact. Define the technical roadmap for complex projects, provide leadership for those executing on it, and generate excitement for the team's strategy. Set and hold the bar for quality and best practices via code and design reviews. Act as a Culture Leader — partner with your manager to set the cultural tone, foster psychological safety, and champion inclusive practices. Coach and mentor teammates, offering direct and actionable feedback delivered with empathy to help others grow into the next level. Represent mission, strategy, and technical challenges to candidates in a compelling way.