I'm a senior backend engineer.NewType Games is adult games platform company.
Develop the payment gateway solution with abstract factory design pattern. Implement many local and global payment gateway(ex:MyCard, AliPay, WeChatPay and Paymentwall) with Nest.js.
Resolve issues: race condition, module dependency and security problem.
Refactor the project with SOLID principle and made the project to be maintained easily.
Tech stack: Node.js, Nest.js, MySQL, and MicroService infrastructure.
I'm a backend engineer.Oriente is E-commerce/Finance company.
Project structure are all following DDD design pattern.
Make the product with node.js and base on MicroServices infrastructure.
Participate in the design of these modules:Category management、User role management、Merchandise management.
Tech stack: Node.js, express.js, MySQL, AWS SQS, AWS ECS, AWS ElastiCache, Lambda and MicroService infrastructure.
Our unit test coverage rate is above 85% in each project.
I'm a FullStack engineer.CoolBitX is blockchain hard wallet company.
Sygna-bridge:Develop system with AWS lambda, AWS DynamoDB and AWS SQS.
Sygna:The project structure is following DDD design pattern and many MicroServices in it.We use many AWS cloud services like ECS,RDS,ElasticCache,CloudWatch and SNS.
Build some cryptocurrency node and some API server(ex: Bitcoincash).
Tech stack: Node.js, express.js, PostgresSQL,AWS DynamoDB, AWS SQS, AWS ECS, AWS SNS, AWS ElastiCache, Lambda and MicroService infrastructure.
Build SSO system, SSO backstage and the official website with Node.js and Angular.
Tech stack: C#, Node.js, express.js, MSSQL and Angular.
Learn C#、ASP.NET、MSSQL、ASP.NET MVC.
Make some real estate estimated report for banks or courts.
My major is Finance.
I used koa.js and vue.js to build the backstage and restful API for website.
I used koa.js to build the restful API for website.
I used express.js and Angular to build the backstage.
I wrote 30 articles about learning the Nest.js framework.The framework is very powerful because it's base on TypeScript and includes Angular's and Java Spring's advantages.