Yan Qian Chang

• Architected and delivered a Near Real-Time (NRT) streaming data pipeline using Apache Beam on GCP Dataflow, improving merchant data insights latency by over 80%.

• Built distributed pipeline observability with DataDog custom dashboards, PromQL metrics, and GCP Monitoring integrations, achieving 99.9% uptime SLAs.

• Led the development of batch ETL correction pipelines to reinforce data resilience and support multi-modal (stream and batch) processing architectures.

• Engineered scalable microservices in Kotlin/Java (Spring Boot), integrated with Apollo GraphQL and Apache Kafka event-driven systems, deployed via Kubernetes with progressive delivery to millions of customers worldwide.

• Implemented GitOps-driven deployment workflows using ArgoCD, automating multi-environment rollouts and rollback strategies.

• Designed and built an anti-corruption transactional orchestration layer using the Saga pattern to ensure distributed data consistency across services.

• Migrated monolithic authentication systems to Open Policy Agent (OPA) with Rego policy evaluation, optimizing JWT caching to cut authorization latency by 50%.

• Facilitated asynchronous scrum practices across global teams, improving team velocity and code quality through active collaboration and peer reviews.

• Developed a self-service DNS diagnostic tool for customer-managed domains, reducing support escalations and ticket resolution time by 80%.

• Optimized image processing workflows across multiple formats, reducing background job latency by 30% and accelerating image availability in production.

• Built responsive, data-intensive UI components in Ember.js, leveraging asynchronous pagination to reduce page rendering time by 40%.

• Integrated Stripe 3D Secure 2.0 protocol enhancements, improving payment transaction success rates by 15% and providing actionable insights into declines.

• Designed and implemented cloud-native ASP.NET platforms for campus safety and field operations, optimizing communication protocols for energy-constrained IoT devices.

• Led the end-to-end development of a real-time Android messaging app for user safety and incident escalation, with a focus on reliability in low-bandwidth conditions.

• Developed a cross-platform NFC-based mobile wallet using Apache Cordova and Ionic Framework, streamlining digital disbursement of financial entitlements.

• Championed Agile ceremonies, including sprint planning, backlog refinement, and retrospectives, to drive iterative product delivery.

Graduated with Focus Areas in Networking, Parallel Computing.

Graduated with specialization in Automation and Intelligence System Integration.