Drive the company-wide workflow team, establishing a high-performance, governed infrastructure for managing complex data pipelines and business processes across the organization.

• Architected a scale and high-performance workflow infrastructure by integrating Apache Airflow, SQS with Kubernetes and Bazel, delivering 24/7 availability under strict SLAs and supporting 100K+ concurrent tasks.

• Engineered and created multi-environment deployment pipelines for workflow system, enabling robust CI/CD rollouts, reducing release time, and significantly improving developer productivity.

Optimize the Hadoop ecosystem in Spark job performance and observability for big data platforms, maintaining a reliable, and cost-efficient Big data infrastructure serving all Robinhood workloads, and improving visibility and troubleshooting efficiency by 100%.

• Developed an intelligent Spark job cost-optimization framework

• Architected the Spark job migration strategies from an in-house Kubernetes platform to Databricks, resolving version conflicts and dependency challenges, and safely transitioning 4,000+ high-priority jobs under strict SLAs.

Wish Tracking Service, a core service is used across the Wish business and serves millions of customers worldwide, which enables them to track shipment logistics status.

• Main contributor to the new Wish Tracking Service, including gRPC&HTTP APIs, Event-Driven based services, and Cloud-based deployment, which improved reliability and extensibility of logistic tracking.

• Led the data migration to the new tracking system from 0% to 100%.

• Generated customized k8s HPA mechanism based on the service CPU usage and network throughput, which improved resource efficiency from avg 40% to 85% and saved 800$ AWS cost daily.

Wish Parcel Service, which enabled users to purchase shipping labels at competitive prices. It can support millions of users including Wish merchants, Shopify/BigCommernce merchants, and individual customers.

• Designed and implemented Wish Parcel Project from scratch, including GraphQL APIs, and backend services, which pioneered logistics GMV contribution.

• Designed and created authentication middleware to support multiple platforms simultaneously including Wish marketplace, BigCommerce and Shopify platforms, and WPS-standalone, which boosted domain scope.

build Apple server framework, a new generic framework of application service.

• Built Non-Blocking APIs to obtain the frontend error reports using Project Reactive, which boosted the scalability and efficiency by 30%.

• Created security configuration using Spring Security which improved the usability and reduced bugs and compatibility issues.

• Developed and configured FoundationDB business module in Aluminum Framework using Reactor Core and FoundationDB that promoted functionality of the framework.

• Designed and created sample projects to illustrate the usage of the FoundationDB module using Aluminum Framework, which improved the Aluminum usability.

Developed the federal contract reviewer web application by utilizing spring boot and agile software development model,

which is used as an academic documents library and helps assign documents to the students.

Designed and developed RESTful API to get documents from Federal Register API.

Developed and implemented a web-crawler with multiple threads, that can be used to get the required online data.

Developed and implemented the filter function to retrieve documents based on the user’s input data from MongoDB.

• Assist with the development the internal employee salary checks web-based system with SpringMVC, Spring, Mybatis.

• Collaboratively worked with senior engineers to build RESTful Web Service and create comprehensive data inquiry methods in Oracle.

• Functional testing and wrote work logs and project related documents.

• Communicated with Operating Department and responsible for collecting the requirement changes.