Sean Lin Email and Phone Number

Maintain and develop new features for Blockchain JsonRPC gateway servicesLead the development of a new API platform from scratchDeliver 20+ APIs and 5+ billions of newly indexed blockchain data (with sharded MySQL tables and ElasticSearch) within 2 monthsDesign and review overall data platform architecture, table sharding mechanisms, index designs and TSQL query designsExperienced with AWS pipelines to deploy and deliver the services/products

Delivered the PGPA Compliance product in C#, ASP.NET, .Net FrameworkBuild a new 3rd party accounting system integration service from scratch with C# .Net CoreBuild a new Peppol eInvoicing system from scratch with Java, Springboot, ReactJS and DynamoDBMaintain SQL Server database schemas and TSQL queries

Designed and implemented a Digital Twin system for a private ISP, visualized the Racks, Routers and the network topologies dynamically based on real time data with ThreeJS (Go, VueJS, ThreeJS)Designed new database schema for the Business Intelligence System, implemented separate ETL modules for the database at the service station and the centralized data warehouse in the data centre (ETL, Python, RPC)Designed and implemented a customized Business Intelligence System; different… Show more Designed and implemented a Digital Twin system for a private ISP, visualized the Racks, Routers and the network topologies dynamically based on real time data with ThreeJS (Go, VueJS, ThreeJS)Designed new database schema for the Business Intelligence System, implemented separate ETL modules for the database at the service station and the centralized data warehouse in the data centre (ETL, Python, RPC)Designed and implemented a customized Business Intelligence System; different users had his/her own customized dashboard and different authorizations were applied; import/export of datasets of different formats (sql dump, csv, etc.) was a must (Python, Go, Vuejs, Hive) Show less

Developed server backend of the company's private cloud storage system, including file sharding, object storage, file history management, etc. (Python, C/C++, RPC)Entirely refactored and redesigned the all-platform PC client, with a more modern UI and UE, offered the users more advanced features like drag and drop, copy and paste, etc. (C++, Qt)Built a new standalone module from scratch that granted the users public access to their data even when their servers were behind NAT;… Show more Developed server backend of the company's private cloud storage system, including file sharding, object storage, file history management, etc. (Python, C/C++, RPC)Entirely refactored and redesigned the all-platform PC client, with a more modern UI and UE, offered the users more advanced features like drag and drop, copy and paste, etc. (C++, Qt)Built a new standalone module from scratch that granted the users public access to their data even when their servers were behind NAT; and this can be achieved via tcp relay and whole punch (C++)Work with virtualization techniques, to develop a virtualized desktop hosting systemPromoted to the team lead after one year due to excellent delivery record Show less

Fix assigned bugsDevelop new features for the systemOn-call/On-site customer support