Daniel Kwan Email & Phone Number

Houston, Tx, Us

Houston, Texas, Us

My role- Software engineer (implementation, integration)Tasks- Implement backend feature using behavior tree, MongoDB, reactive programming, PDDL, Pub/Sub based communication, Request/Reponse based services, with unit testing- Implement frontend with Angular JS and 14+- implement backend middleware with NodeJS- Organize feature specification meeting to collect and finalize requirement.- Host technical knowledge sharing sessions

Houston, Texas, Us

Applications involved:- abbl/Etude : web based drilling instruction recommendation application- DrillOp : web based drilling operation platformMy role- Architect (design, POC)- Team leader- Software engineer (implementation, integration)Tasks- Designed and implemented the Integration of abbl/Etude into DrillOp platform. Continuously updating and testing integration layers to ensure integration stays current.- Designed and implemented communication broker using websocket, with support for features like store-and-forward, acknowledgement and large file transfer. The infrastructure guarantees delivery, maintain data integrity, minimize payload (critical for satellite-based network) and survived constant network/server outage.- Support and fix problems raised due to system integration between Etude and DrillOp, with issues including data mapping, logging, exception handling, application state recovery, data subscription, event notification, and so on.- Defined and executing testing workflow with integrated and manual tests for each release cycle.- Implementing security on web application by using routing, custom port and security rules to ensure different treatments between intra-server and external traffic.- Implemented and continuously updating Nuget deployment package to ensure successful deployment of Etude in DrillOp platform.- Regularly providing presentations and knowledge transfer sessions to educate teammate about the latest update on architecture and implementation.- Designed and implemented verification and validation tool for verifying integration efforts before each production release.- Designed and implemented mechanism to monitor and report application problems in a centralized dashboard in order to support remote operation. - Refactored a WebSocket based data synchronization mechanism to support different network protocol.- Created deployment packages for web based application using Wix Toolset

Houston, Texas, Us

- Define enterprise mobile software development guideline, standard and best practice.- Evaluate mobility related devices, products, SDKs, software development platform and related products, such as API gateway, network gateway and security products/features (Kerberos Authentication, Public Private Key Encryption, API Gateway, Federated Identity, Directory/Identity Server)- Create prove-of-concept mobile applications to evaluate mobile application development platforms.- Facilitate presentation, workshop and gathering to educate and evangelize mobile software development best practice, new tools and opportunities on implementing mobility solutions.

Houston, Texas, Us

- Architect and implement a complete rewrite on a client-server project/resource management application (thousands users worldwide) from tightly coupled, un(unit)testable, slow performance code base into a highly decoupled, unit-testable, high performance and easy to maintain system using technologies including but not limited to:- SOA architecture: to ensure the system capable to work with various client technologies, including Web, mobile, tablet and WinRT (all with Prove-of-Concept projects implemented)- Microsoft Prism 4 (Unity IoC container, Aggregate Event Manager and Region Manager)- WPF 4.0 with MVVM Design Pattern- Parallelism in .Net 4.0, specifically leveraging Task Parallel Library to create future-ready asynchronous call methods.- Microsoft Entity Framework 4.1 with Code First entities and configuration in Fluent API.- Enforce unit testing to ensure decoupling and testability- Setup reusable Xmal styling and resource library - Provide architecture guidance to the whole development through commenting in the source code auditing process, and write actual implementation to demonstrate all the architecture intend and coding standards.- Implement iPhone and iPad native (written in Objective C) Prove-of-concept business application with REST-based web service back end created with Microsoft ASP.Net MVC and Entity Framework accessing data from SQL Server database.- Maintain and support a Microsoft WinForm based client-server project/resource management application. Tasks included but not limited to bug-fix, performance tuning, code quality auditing and implementing new features using technologies like Microsoft SQL CLR, third party controls like IBM ILOG Gantt for .Net and so on.

Houston, Us

- Develop, maintain and support web based application for used by title insurance industry, using Microsoft software development technologies such as .Net Framework 2.0/3.5, C#, ASP.Net Ajax, LINQ, WPF (XAML), WCF, ASP.Net and Classic ASP- Implement software solution using Agile methodology with practice such as test driven development, pair programming, design pattern (MVP, Broken Rule), Poker planning- Design and prepare deployment procedures with deployment scripts and documentation for hands-off deployment carried out by separate deployment team.