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XianJin Xu is a Senior Full Stack Developer and a tech enthusiast who loves turning complex problems into simple, beautiful solutions. With 7+ years of hands-on experience, Xian has mastered the art of web development, working with everything from AngularJS and Laravel to AWS and Azure. He's comfortable in various sectors, such as Fintech, Real Estate, Gaming, and more. He's got a Computer Science degree under his belt from Yanbian University and loves to keep learning as technology evolves. Xian has made significant contributions at several cool companies, including Lions and Legacy and Must Fintech. He's all about developing, testing, troubleshooting—you name it, he's probably done it. Whether he's diving into the backend or crafting user-friendly frontends, Xian is a team player who brings creativity and expertise to every project. Ready for the next big thing, he's always up for a new challenge!

AngularSpring BootNestJSLaravelAWSASP.NET Web APISolidityRustAmazon EC2Amazon S3SequelizeAmazon RDSGraphQLNext.jsTailwind cssJSPRedisElasticsearchRabbitMQAWS LambdaSpring CloudHibernate ORM

I am a full-stack web developer, specialized in ASP.NET, Javascript framework and Python frameworks. I have been working as a developer from 2015 and I am familiar with various technologies (most of them are .NET/C#, JavaScript/TypeScript and Python based). Combining research, architecture, development, management, coordination and communication tasks is not a big deal for me. I have developed many big/small projects : ASP.NET, ASP.NET Core, Angular, React, Vue, Django, Flask, Node, Nest and Xamain. I am a little more familiar with back-end development and have a good experience with architecture, unit test with TDD and always try to follow solid principles. Followings are my experiences: **- Programming languages** ✓ C/C++ ✓ C# ✓ JavaScript/TypeScript ✓ Python ✓ Php ✓ Html, ✓ Css **- Frameworks** ✓ ASP.NET/ASP.NET Core MVC & Web API (EntityFramework, Kendo UI, Telerik UI) ✓ Express, Loopback, Nest, Node ✓ Angular JS, Angular 2, Angular 4, Angular 6, Angular 8 -12 ✓ React + Redux ✓ Vue JS ✓ Django, Flask ✓ TypeORM, Entity Framework, Hibernate **-Services** ✓ SMS service integration (Twillio, Plivo, SMSru) ✓ Email integration (SendGrid, MailGun, Gmail, custom SMTP) ✓ SignalR ✓ Azure SQL, Azure AD, Azure Storage, Azure Notification Hub, ✓ Firebase ✓ Search Engine (Solr, ElasticSearch) **- Design Pattern & Architecture** ✓ OOP and System Design; ✓ Repository Pattern ✓ Onion Architecture ✓ The Clean Architecture ✓ Domain Driven Design Architecture ✓ Dependency Injection Design Pattern ✓ CQRS **- DevOps** ✓ Github ✓ BitBucket ✓ Azure DevOps ✓ CircleCI **- Database** ✓ MySql ✓ SqlServer ✓ PostgreSql ✓ MongoDB

AngularReactXamarinGitHubStripeNestJSDjangoRabbitMQReduxGoogle MapsAzurePayPalSendGridXamarin.FormsHangfireAzure notification hub

I am a Principal Software Engineer with experience in designing systems, transforming complex business processes into highly forward-thinking system designs and implementing business requirements for companies like Michaels Stores, Verizon, and Samsung SDS America.

AngularJavaPythonLLMJavaScriptReact