Tonya Momchev Email & Phone Number

Advocated for utilizing Flutter / Dart as a single codebase for 4 different platforms. * Architected and developed multiple Dart/Flutter POCs used as the basis for starting the process of transitioning from 4 different client applications to a single cross-platform client application* Architecting, developing the foundation and leading the development of what would be the future production Flutter application that runs on iOS, Android, Web and Connected TVs Responsible for cross-functional and cross-teams enterprise architecture* Understand the big picture and provide architectural design and guidance across all engineering teams.* Define clear interfaces between different systems.

Chicago, Il, Us

Responsible for establishing Mobile practices from the ground up for a mutual insurance company that provides financial services with no previous mobile presence* Established mobile architecture and coding standards. Selected Lint tools to enforce those standards.* Initial setup of DevOps team with Azure CI/CD pipelines for distribution of the mobile apps and collecting analytics data and crashes* Architected and developed Android Kotlin and iOS Swift / SwiftUI POC apps with dynamic screens as a foundation for future apps

Chicago, Illinois, Us

Lead the development and/or developed multiple client’s projects:• Architected and developed an IoT garbage collection system, utilizing the following technologies: iOS and Android single codebase mobile applications written in Flutter and Dart, .NET backend microservices hosted in Azure. Sigfox distance sensor, Azure DevOps pipelines for CI/CD, Docker containers for cloud agnostic deployment and Kubernetes for scalability.• Certified in Microsoft AZ-900 – Azure Fundamentals Certification• Certified Scrum Master• Participated in the architecture and development of a sharing/renting blockchain application for a large logistics European company utilizing Golang, Postgres for the data that was outside of the blockchain, CouchDB for the blockchain data and Elasticsearch for searching and analyzing of data, Swagger for documenting and testing API, Docker and Kubernetes• Added Amazon Polly voice to the ordering module of an existing major fast food iOS application as a proof of concept.• Created multiple AR iOS applications in Swift 4 and 5 using ARKit and SwiftUI.• Created multiple Alexa skills in Python and Java, utilizing many AWS services.• Created multiple Google Actions• Created multiple ASW deployment scripts utilizing CloudFormation, shell scripts and JQ• AWS and Azure architecture

• Architected and lead the development of the first release of a home automation / internet of things iOS 8 / 9 application for a major home improvement retailer. Played a critical role in establishing the initial iOS team. Application uses Web Sockets and JSON for communications. Development done in Objective-C and Swift 2.2. Converted the app to iOS 10.* Architected and lead the development of 4 releases of the iOS 7/8 iPhone application of a major retail chain. The application uses Urban Airship, Omniture, CoreData and JSON.* Architected and developed a Windows Phone 8 and iPhone mobile applications and participated in the development of an Android application, that communicate with Wi-Fi Access Points and configure them. * Architected and developed the framework for an iOS 7 enterprise iPad application of a pharmaceutical company. UI design is state of the art with video playing, animations, custom fonts and image processing effects.* Responsible for the stabilizing of 2 iOS universal email applications: fixed memory leaks, crashes, and reduced memory usage. Re-designed the communications with the server to allow fast processing of user actions for large email accounts. * Designed and developed a universal iOS 5.0 / 6.0 application for a private jet insurance company, that allows pilots to enter their flight data. Flight data is saved on device in SQLite database in offline mode until securely transmitted to server. Created multiple custom controls. Architected and overlooked the development of the RESTful JSON Web Services. * Designed and developed an extension to the existing universal iOS application of a trading company to allow communications between customers and/or company employees, viewing/changing schedules during conferences.* Extended the existing .NET C# Web API REST JSON Web Services with the services needed to support the new iOS application functionality.

Chicago, Il, Us

* Re-designed and lead the development of the existing Sears2Go and Kmart2Go iPhone and iPad applications to improve application reliability and performance, ease of use and user shopping experience. As part of the process converted the existing applications into truly iOS 5.0 applications.* Interacted with API team to facilitate improving API reliability. * Developed and enforced programming standards and good programming practices. Enforced standards by conducting design and code reviews. Responsible for training junior developers.

* Participated in the development of a universal application for a publishing company allowing students to view books on their iPhone/iPad. Applications uses animations, gesture recognition, zoom in/out capabilities and portrait/landscape support. Used PhoneGap to convert a Mobile Web app into native iPhone/iPad and Android applications. Evaluated different HTML5 mobile frameworks and JavaScript plugins to use in Web application for iPhone/iPad and Android. * Designed and developed iPhone like UI custom scrolling, custom drawing, only custom controls, including custom input keyboard and custom text editor for a Windows CE application for controlling an insulin injecting pump. Since the version of the Windows CE 6.0 did not include the Gesture API, added support for pan, tap and flick gestures to the application. Application written in C# and .NET CF 3.5.

El Segundo, Ca, Us

* Designed and developed the DirecTV Scheduler Application for Windows Phone 7 utilizing .NET 4.0, Silverlight, LINQ, WPF, WCF, Lambda expressions, Expression Blend, and SDK for Windows Phone 7.Search for "Directv" in the Marketplace to find it. * Redesigned and developed portions of the DirecTV Scheduler application for iPhone (currently in AppStore) to improve performance and user experience. Designed and developed the asynchronous communications with the server of a DirecTV Sports Application for viewing sport results.

* Developed a UDP app for iPhone using objective C and XCode. Researched using iPhone as a UPnP Control Point. * Architected and developed in C#, .NET CF 3.5 two apps for a company delivering satellite-based television services. Users watch live Sunday NFL games and monitor highlights and game results on Windows Mobile 6.0 or 6.1 devices.Second app allows users to view their TV schedule and set DVR to record programs. Developed multiple custom UI controls.* Architected and developed a self-updating Windows Mobile 6.1 smart client for GPS tracking and completing daily jobs. App interfaces Garmin for directions and current GPS location.Developed Web Services. Created one step deployment app.* Consulted a retailer on enhancements to in-store inventory C++ Windows Mobile 5 app and eliminated flaws in the TCP/IP communication layer.Added interface to Connection Manager.* Re-architected and developed in C# and .NET CF 2.0 a Windows Mobile 5 app for disease management and clinical trials for Palm 750 Windows 5 and HTC 8225,6300 and 3400.It uses RFID and communicates with the server to download regimen,creates personalized medication schedule,schedules and calls patient to take medications and fill in an e-diary.Stores information on device in a SQL Server Mobile 3.0 and in unattended mode sends it to server.* Architected and developed in C# a Windows Mobile 5 multithreaded, high performance Commissioning app for iPAQ and desktop,as part of a Wireless Lighting ControlNetwork.The app seamlessly communicates with lighting devices over wireless network and views,monitors and configures profiles of devices and discovers,identifies and commissions them.* Architected and developed a PocketPC application for HP iPAQ that reads and displays EXEF image files,extracts GPS information.* Designed and developed the communication layer between a C++ PALM application and a server,allowing access to public records via handheld devices.

Itasca, Il, Us

* Participated in the full life cycle of the development of Web Pro browser for Palm devices with PALM OS 3.5 or higher using C++, Code Warrior for PALM and Palm Simulator. Browser connects to server via HTTP or HTTPS protocol over GPRS/GSM wireless networks, receives from server web content in XML format and renders it on PALM devices with different screen resolution. Created multiple custom UI controls for displaying web content. * Participated in the development of browsers for Smartphones, RIM Blackberry utilizing C++. Participated in the customization of the browser to support Bar Codes Scanners.* Designed and implemented WAP 2.0 Push specifications for PALM devices with GPRS connection utilizing SMS services. Used WBXML encoder/decoder to send encoded Push messages from Push server to PALM devices. * Designed and implemented a GUI tool with built in IE browser (MSHTML COM object), to create templates from web pages. Template Editor implemented in Visual C++ utilizing MFC, ATL, COM, utilized JNI to connect to Java DOM tree and publish templates.

Itasca, Il, Us

Global, Us

Involved in the design and development of several WEB applications utilizing ASP, JSP, Oracle 8i and SQL Server 7.0 databases, Visual InterDev 6.0, Front Page 2000, VB Script, JavaScript, HTML 4.0, JAVA, JSP, JavaBeans, Servlets, EJB, XML, SAX parser, XSL, CSS, DTD technologies.

Participated in the design and development of third party Win32 applications utilizing Microsoft Visual C++, MFC and MS Access.

Mba, Information Systems And Finance

Ms In Ee, Electronics And Microelectronics