X is a multichain decentralised NFT marketplace that is owned and operated by the NFT community. Collect, create and sell across multiple blockchains on the industry's first decentralised NFT marketplace. Governance is provided by the X DAO with voting rights given to token holders.
Tech stack: Golang and Mongo.
Iron Bank is a blockchain agnostic, decentralized peer to peer lending platform based on a fork of Compound Finance. Iron Bank bridges liquidity across underserved assets by providing algorithmic money markets to these underserved assets. Users can supply any supported assets and use these supplied assets as collateral to borrow any other supported assets. Iron Bank has launched on Ethereum, Fantom and Avalance.
We have many workers in our backend services. We monitor cryptocurrency prices and get some data via interacting with smart contract to present to the frontend. The backend infrastructure was standalone before and caused some dependency problems and resource race conditions. I modified the backend services to MicroService and those problems resolved.
I build some metrics on Dune to analysis the cash flow and let more people know IronBank lending platform.
Tech stack: AWS, Node.js, Nest.js, PostgresSQL and MicroService infrastructure.
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.