Lake Forest, IL 60045

John@WebsitesAndDatabasesl.com

§  Xamarin Forms/Native/MAUI

§  XCode

I am looking for Xamarin Forms and/or Xamarin MAUI conversion, freelance projects.

I’m an independent, freelance Xamarin, iOS/Xcode (Swift/Objective C), C#/VB/SQL Server, who focuses on data-driven mobile applications (both native and hybrid), custom and 3rd-party API development and integration, both websites and applications, database design and visual interfaces for UI/UX, 2D and 3D asset creation for integration into mobile apps and games.  

I have worked on a multitude of very involved, sophisticated apps, websites, API’s and database back-ends and games.

I’m currently looking for Xamarin (forms and MAUI conversion), iOS, C#/SQL Server projects.

I work independently or on teams for larger projects, I can work on-site as needed, am based out of Chicago and can travel as needed.

§  Available for Freelance, Contract, corp-to-corp Work only. 

§  Authorized in the US to work for any employer

§  On-site as needed

§  Overview

Xamarin Forms and native. Liberal use of Prism, Parse and SQLite as well as 3rd party packages and APIs. Esri ArcGIS map and data integration. Several apps built either beginning to end or as part of a team, heavy Restful (JSON/XML), 3rd Party APIs including AWS and Azure extensions,heavy notifications and messaging, thread management, Local and remote synching. Non-trivial UI/UX integration on several apps including custom renderers and styles.

Apps beginning to end, heavy Restful (JSON/XML), 3rd Party APIs including AWS and Azure, extensions, heavy notifications and messaging,thread management, Storyboards, playgrounds, UX design and integration.

Xamarin Apps and sites beginning to end, lots of asp.net MVC/Forms, heavy use identity framework and forms authentication, Entity framework, secure WebAPI supporting Restful mobile and 3rd party API publishing, UX design and integration.

Lightning Lawyer – Illinois

Xamarin Forms, Xamarin MAUI, Prism, Parse, SQLite, Custom renders, styles

Initial app development as well as MAUI conversion. A lead generation app for lawyers that made heavy use of Prism, custom controls and custom renderers. Custom API calls to custom and 3rd party APIs, location-based, push-notices integrated throughout the ground-up app. Custom behaviors, controls, converters, display models, enums, events, extensions, helpers, interfaces and services, used throughout the app. 

S1G – Michigan

Xamarin Forms, Prism, Parse, SQLite, Custom renders, styles

A trucking management app that made heavy use of Prism, custom controls and custom renderers. Custom API calls to custom and 3rd party APIs, location-based, push-notices integrated throughout the ground-up app. Custom behaviors, controls, converters, display models, enums, events, extensions, helpers, interfaces and services, used throughout the app.

Domii – New Hampshire

Xamarin Forms, Prism, Parse, SQLite, Custom renders, styles

A real estate app that made heavy use of Prism, custom controls and renderers, very detailed UI/UX for both iOS and Android, LOTS of data service custom API calls to custom and 3rd party APIs, location-based, push-notices integrated throughout the app, picked up the app where another dev left off, in both app stores August, 2020. Custom behaviors, controls, converters, display models, enums, events, extensions, helpers, interfaces and services, used throughout the app.

Bar Exam Tip Of The Day - Chicago, IL

Xamarin Forms, Prism, Parse, SQLite, Custom renders, styles

A ground-up, custom designed app and backend using Parse for  both iOS and Android. Liberal use of 3rd party packages, notifications and Prism functionality and custom renderers and styles. In app purchase integration for both platforms. Created all artwork and release workflows into both app stores. 

Peoples Natural Gas  - Minneapolis, MN

Xamarin,  Prism, ESRI ArcGis, SQLite

A ground-up Xamarin Forms project using MVVM to integrate previously-designed and developed middle tier and WPF components into PNG’s mobile app. App was built with liberal use of custom frameworks and modules and custom renderers and styles.

Coverage Attorney Network - Chicago, IL - April 2018 to June 2019

Xamarin, Prism, Parse ASP.Net MVC, C#, MVVC, SQL Server, WebAPI, 3rd Party API  Integration, Identity Framework

A ground-up, custom designed backend for  both web and WebAPI  Restful data  publishing. Designed, developed and integrated all Xamarin,Parse, asp.net MVC controllers and view/view models/models for both website and WebAPI use, iOS app using swift and asp.net identityframework (customized userStore and ApplicationUser) app integration via  secure API for consistent logon, all web and app interfaces, SQL triggered event push notifications to app, Authorize.Net web and app integration, Java script functionality, UX for  both web and app.

iScape -  Chicago, IL - February 2018 to April 2018

ARKit, SpriteKit, SceneKit, Parse

Built  a custom AR component to an existing app integrating iScape’s 2D sprites into ARKit and SceneKit for an augmented reality feature set for their customers.

InkMage - Chicago, IL - February 2018 to February 2018

Unity3D, Vuforia

Added components to and debugged currently existing code base for  an AR tattooing app (check InkMage in the iOS apps store)

Software Company  - Arlington, VA - July 2017 to October 2017

Xamarin Forms, Parse, SQLite, Custom AWS backend integration

Xamarin Dev in disconnected, sync app for time tracking "in the field". Built and maintained numerous view controllers for client specificcomponent integration. Dependency injection for native functionality. Jenkins for automated builds

Patient tracking software company - Augusta, GA - July 2017 to August 2017

Xamarin Forms, Parse, SQLite,

Enhanced a VERY robust existing Xamarin app that was built to for disconnected patient tracking system including implementing dependencyinjection features for  native components

Beam Suntory -  Chicago, IL - January 2012 to January 2016

Swift/Objective-C, SQL Server, iPad custom UI, .NET backend/middle tier

Restful data design and integration, 3rd Party API Integration, Identity Framework, Objective-C, iOS 3rdParty API integration

Southern Wine and Spirits

Swift/Objective-C, SQL Server, iPad custom UI, .NET backend/middle tier

Custom designed, iPhone and iPad, Restful driven pricing calculator for  sales sheet pricing and integration of entire Beam product line. Built  custom security API using Forms for  secure logging into Southern Wine's Active Directory back-end.

Innovative Marketing Solutions - Chicago, IL - January 2011 to January 2014

ASP.Net MVC, C#, SQL Server, JQuery, Restful data design and integration, 3rd Party API Integration, Identity Framework, Swift, iOS 3rd PartyAPI integration, AWS

Innovative Marketing/Virtual Spirit

Native application with a custom API back-end built exclusively for iPad. Heavy use of JQuery, ajax and JSON. Heavy use of custom delegates andNSNotifications. DropBox integration. Urban Airship integration. Custom API using AWS backend. Custom security framework built.

Beam Suntory - Northbrook, IL - August 2011 to February 2012

ASP.Net MVC, C#, SQL Server, Restful data design and integration, 3rd Party API Integration, Identity Framework, Objective-C, iOS 3rd PartyAPI integration, Entity Framework

RentSentinel – Chicago, IL

iPad only app that manages rental applications worldwide. Solely Designed, Developed and implemented the iPad that consumes RESTful webservices provided by a Microsoft back-end and a 3rd party API. Built the web services and database interfaces as well as the entire iPad app thatconsumed and displayed the rental information data. Worked with a VERY talented team of C#/SQL Server developers who built out a robust, fully functional website that is the core of the RentSentinel business.

Major Entertainment Group – New York, NY - September 2010 to October 2011

Objective-C, iOS 3rd Party API integration for content security Major Entertainment Group iPhone Development of a NetFlix competitor. Solelybuilt and was responsible for all aspects of an iPhone/iPad series of applications that is heavily invested in video progressive download andstreaming. Heavy use of server side data (RESTFUL data conversations), asynchronous application behaviors and complex application interaction based on  user account privileges. Worked on site mostly and as needed with daily or weekly interaction with other device developers, architects,business managers and marketers. NDA prevents specifics as to client – call for  more information on  client.

MyWinesDirect.com - New York, NY - July 2008 to January 2009

ASP.Net Forms, C#, SQL Server 2005, Telerik Tools, Subsonic MyWinesDirect.com. Built and designed a custom database for managingMyWinesDirect.com's internal fulfillment process. Hooked internal process into MyWines' internal e-commerce data-systems. Built several custom components for supporting their custom e-commerce system into third-party CMS providers and inventory systems.

CCRA International - Los Angeles, CA - January 2007 to June 2008

ASP.NET, VB.NET, ASP, SQL Server 2000 for CCRA International. Built a data model that allowed for this travel group to track and relate travelagencies, agents, consortia and associations. Modified and embellished the booking and cancellation process and interfaced that data with theaccounting package Epicor. Built all pieces that interfaced with the travel booking process.

BankerRealty.com - Los Angeles, CA - March 2005 to May 2006

ASP.NET, VB.NET, ASP, SQL Server 2000 for BankerRealty.com. Built an e-commerce solution that allows for automatic updates of lending rates,and the ability for users to dynamically select and apply for loans based on  those updated daily rates.

Nielsen Ratings Group - Los Angeles, CA - April 2005 to December 2005

ASP.NET, C#, ASP, SQL Oracle for Nielsen Ratings Group. Worked with the NRG group in developing an internal application that tracked anddisplayed all of Nielsen's rating tracking data. This included data aggregation and reporting across multiple data sources.

Daniels.com - Los Angeles, CA - February 2005 to May 2005

ASP.NET, C#, ASP, SQL Oracle for Daniels.com. Built the data model and the Mainstreet interface to convert Daniel's previous ASP site to a .NETsite. This included utilizing custom templates and integrating the data from a custom database and the Mainstreet web services into those templates.

Printrunner.com - Los Angeles, CA - June 2003 to March 2005

.NET/SQL Server, Custom FedEx API J MAS 500, ADO.NET for Printrunner.com. A soup-to-nuts solution for  this mid-sized printing operation. An e-commerce portal, complete order tracking, invoicing, MAS-500 accounting integration and administrative and internal user support applications. The system allows for dynamic product and pricing creation and reporting. Created all aspects of data structure and application interfaces. Heavy use ofUser Controls and XML datasets. Custom COM object for FedEx, UPS and US Post shipping interfaces.

http://www.XsmarinFreelancer.com