SUMMARY

• Extensive experienced and hand - on skills on building iOS applications(design, coding and integration) using Objective-C and Swift 1.0-4.1 over Xcode
• Experienced major frameworks of iOS SDK including Core Location, MapKit, Core Data, StoreKit, CoreML, Audio/Video, AR Kit, CoreImage, iAd, Messaging, Networking etc. and integration with third party SDK such as Google MapKit, DropBox, AdMob, BarCode Scan, Social Medias, Parse Server, FireBase and main Cloud platforms
• Hand-on experiences on implementing mobile apps on finances, insurance, enterprises, auto, construction, education, travel, business, social networking, real estate and e-commerce
• Experienced design and development interface of communication between mobile apps and backend server by REST, JSON, SOAP Web Services, PHP, and ASP.NET
• Experienced building Android mobile apps using Android Studio with Java/Kotlin, and integration with backend system
• Experienced building cross-platform mobile apps using React Native and integrated with existing iOS and Android apps
• Hand-on experiences of deploying customized Mobile App Backend platform(Parse Servers/MongoDB/Node.js) to Cloud, and integrate them with mobile apps
• Experienced distributing app on both App Store Connect and Ad-Hoc for iOS, and Google Play Store for android
• Solid hand-on skills and experiences on programming with Swift, Objective-C, PHP, C, C++, C#, JavaScript, Python, Node.js, Java, Kotlin on Windows/Mac/Linux
• Working knowledge of NoSQL database Realm/Mongodb, and Oracle, SQL Server and Sybase databases
• Built 30+ real mobile apps and released on App Store and internal environment, some apps got top rank on store
• Good teamwork, problem-solving, troubleshooting and interpersonal skills
• Experienced to work on United States and Canada by on site and remote

PROFESSIONAL EXPERIENCE

Sr. Consultant

Confidential

Responsibilities:

• Developing, designing, integrating, implementing and consulting service on iOS applications and integrated with third-party frameworks, mobile app back-end server and REST/SOAP,
• Worked with BA/Project Management teams to collect and clarify requirements/deliverables, defined functional specs, designed system architecture and developed technical proposals of mobile solutions.
• Designed the user interface of mobile applications according to client's requirements and Guideline of iOS user interface from Apple and Android from Google.
• Integrated iOS applications with third party applications and/or data sources on server/cloud by XML/Web Services/REST, JSON.
• Developed iOS applications that combined native applications and web pages and used major frameworks including MapKit, Core Location, Core Data, Core ML, AR Kit, SQLite, StoreKit,
• Developed iOS applications using Objective C, and Swift 1.0-4.1, and mixed of Objective C with Swift in project. As well migrated Objective C project to Swift project.
• Developed and Designed social networking iPhone/iPad app that integrated with Facebook, MSN, Gtalk, Yahoo, etc into single app and performed real time translation by integrated with back end chat servers, the app got 5-star review rating on App Store.
• Developed and implemented a large finance iPad app that has 100+ screens and integration with client backend .Net based customized system by Web Service/REST API. The app is able to register subscriber/beneficiary, quick quote, calculation by user data, build specific RESP plan step by step, validation, making signature to all necessary forms, then create PDF and submit to server for approval.
• Building RESP API to communicate between mobile apps with mobile app backend
• Deploying Mobile App Backend platform and NoSQL database to Cloud platform, as well integrate them with mobile apps.
• Experienced prototyping ML models in Python and integrated with iOS app
• Created PHP scripts to perform looking up data base and commutating with mobile device over networking.
• Set up iPhone/iPad device testing environment by creating Development Provisioning Profile and Development Certificate and loaded code into iPhone device, performed QA test on real iPhone and iPad
• Set up production deployment environment by creating both Distribute Provisioning Profile and Distribute Certificate, created Distribute build in local Macbook. And uploaded binary code to App Store Connect for Review and Approval by Apple team.
• Programming languages including Swift, Objective-C, C/C++, PHP, C#, JavaScript, Java, Kotlin, Python, Node.js, ASP.Net, JSP over Apple Mac OS 10.7 and Mac/Windows/Linux.

Sr. Consultant

Confidential

Responsibilities:

• Collected client’s requirements and created technical specifications as well, designed system architecture and created technical proposals of specific solutions.
• Designed the user interface of application according to client's requirements and created technical proposals.
• Experienced the full life cycle of building .Net Frameworks-based Web and Windows applications (Design, Development, Deployment and Tuning) over .Net Framework
• Designed and developed Web Services using .Net C#/ADO.Net that was as the integration interface between Speech IVR, Call Center and database over .Net Frameworks. The speech IVR invoked this Web Service to insert or update the data that were collected by IVR into db, and retrieved specific info from db based on caller info to play back to caller.
• Designed and developed the ACD application of Unified Messaging with WCF, and AJAX over .Net Framework 3.5 to implement contact presence, chat of Instant Message, queue and call/chat transfer and integrated with MS OCS server and SharePoint 2007.
• Designed and built both web site and web application of the live chat over .Net Frameworks with Silverlight 3.0. Created several web pages to handle user sign up, account management, billing, and service package, live chat dialog, etc. using ASP.net, Active Directory API, and Windows Communications Foundation.
• Building speech-enabled web IVR applications based on MS Speech Server using ASP.Net, JavaScript, SALT/VXML, Web Services, dynamic grammars, and basic speech controls, and programming on both server side with C# and client side by JavaScript.
• Developed integration solutions between MS Active Directory, Office Communications Server, Speech Server, SharePoint, SQL Server, and Dynamic CRM with third-party applications.
• Tested application on unit and integrated level. And tuning and updated application based on both customer feedback and system logs.
• Wrote database Stored Procedures that worked with ADO.Net using in projects and Contact Center application. And created customized report based on the real time data.
• Programming using C, C++, Objective-C, ASP.Net, ADO. Net, C#. Net, AJAX, WCF, WPF, LINQ, VoiceXML, SALT, JavaScript, VB Script, VB.Net, Visio, CSS based on Windows 2000/2003/2008 by Visual Studio 2003/2005/2008. Database was based on SQL Server 2000/2005 and Oracle 10g/11g.

Application Engineer

Confidential

Responsibilities:

• Worked with clients; collected their requirements and created application proposals and system architecture; designed and created Call Flow/Call Routing/Call Scripts.
• Designed, developed, deployed and tuned speech-enabled IVR/Web application as well as design and implementation of VUI, Grammar, Dialogs and Prompts over MS Speech Server (Beta2/pre-release/release version).
• Designing and implementing a Reference Design of CTI-enabled Microsoft Speech Server 2004 over .Net Frameworks in Contact Center by working with Intel and MS team. Played a central role in this project. It was posted on Intel website as a demonstration.
• Installed, configured and deployed CTI/IVR/Speech application server as well, performed unit testing and integration testing.
• Created database tables and stored procedures over SQL Server 2000.
• According to integration requirements, developed and customized software component using ASP.Net/ADO.Net/C#/C++ /SALT/JavaScript.