• Led the successful migration of core commerce APIs from REST to GraphQL, reducing average API response times by 27% and enabling real-time data synchronization across 5.6 million active stores globally.

• Engineered scalable Java backend payment gateway architectures (Shop Pay and third-party providers) supporting $18B+ annual transaction volume with full PCI-DSS compliance and zero downtime.

• Delivered high-impact AdTech and AI personalization microservices, increasing ad-driven GMV by 22% and boosting customer conversion via real-time recommendations and streaming analytics.

• Designed and implemented type-safe, self-documenting GraphQL APIs with Spring Boot and GraphQL Java, covering commerce, media pipelines, payments, and personalization domains.

• Built event-driven services powered by Apache Kafka to enable seamless large-scale data streaming for media processing, payment events, and AI recommendation engines.

• Developed secure authentication and authorization mechanisms using OAuth2, JWT, and API Gateway hardening to protect sensitive data and enforce fine-grained access controls.

• Automated end-to-end CI/CD pipelines using Docker, Kubernetes (GKE), Helm, and GitHub Actions, driving rapid, reliable microservice deployments with zero downtime.

• Designed and maintained cloud-native infrastructure on AWS, utilizing EC2, S3, Lambda, and RDS for scalable, secure, and cost-effective backend and media pipeline deployments.

• Developed real-time dashboards in React.js using GraphQL subscriptions over WebSockets, delivering live KPIs and AI insights with fast, intuitive data visualization for merchants.

• Built responsive, accessible UIs with React, TypeScript, HTML5, CSS3, and Apollo Client, ensuring efficient GraphQL data fetching and seamless user experiences across admin and storefront apps.

• Drove microservices scalability, reducing API response latency by 30% and improving system reliability to 90% SLA for over 1.6 billion global users, enabling seamless content delivery and monetization.

• Engineered AdTech integration features that increased targeted ad revenue by 15% through advanced user segmentation and real-time bidding enhancements, directly supporting $23 billion annual revenue.

• Collaborated across cross-functional teams to implement real-time personalization pipelines, boosting user engagement metrics by 22% through intelligent feed ranking and live recommendation updates.

• Designed and deployed Spring Boot 3.0 Java microservices, leveraging modular API-first development, containerized with Docker and managed via Kubernetes on AWS for rapid scaling and zero-downtime releases.

• Built and optimized distributed event-driven architectures using Apache Kafka, Redis, and gRPC, supporting real-time feed generation, live metrics, and scalable service orchestration.

• Integrated AI/ML pipelines (TensorFlow/PyTorch served via Java APIs) for instant content moderation and

personalized user experiences, working closely with data science and backend engineering teams.

• Enhanced system observability and reliability with advanced monitoring (Prometheus, Grafana), distributed tracing, and CI/CD automation (GitHub Actions, Jenkins), dramatically reducing incident response time.

• Developed responsive creator dashboards and web UIs using React.js, TypeScript, HTML5, and CSS3, integrating REST/gRPC APIs for dynamic media management, real-time analytics, and interactive campaign functionality.

• Assisted in engineering and optimizing core Java microservices using Spring Boot and Kafka for IBM MaaS360, contributing to a 32% reduction in incident response time and supporting secure device policy enforcement for 2,500+ Fortune 1000 enterprises globally.

• Supported backend integration of AI-driven threat analytics leveraging IBM Watson APIs, helping automate compliance monitoring and predictive risk scoring to enhance enterprise security and reduce manual oversight.

• Developed scalable, secure RESTful APIs and event-driven pipelines using Hibernate (JPA), integrated with IBM Db2, PostgreSQL, and MongoDB databases, aiding adaptive media streaming and content management within a microservices cloud environment orchestrated by Docker, Kubernetes, and CI/CD tools like Jenkins and Tekton.

• Collaborated on building and maintaining responsive admin portals using React.js, TypeScript, HTML5, CSS3, and JavaScript, incorporating real-time WebSocket updates to seamlessly connect frontend interfaces with microservicebased Java backends, delivering intuitive administrative dashboards and endpoint analytics.

• Analyzed and contributed to the implementation of modern DevOps practices, supporting cloud-native deployments on IBM Cloud and AWS to help maintain zero-downtime releases and high availability for critical Unified Endpoint Management and security services.