Developed a C# console application and a RESTful web service that executed scripts written in Python. The console application used HTTP POST to send a JSON formatted data transfer object to the web service controller. The controller then executed the Python script.Wrote a logistic regression model in C# for an existing web application. The purpose of the model was to predict missing values in a dataset. As part of the development work I wrote unit tests against the core functionality of the module such as streaming the input data from a file and performing the regression calculations.Performed maintenance work on a web application using C#, VB and the Telerik suite of tools. I replaced the .Net GridView controls with Telerik RadGrids. I also replaced many instances of hard-coded T-SQL with LINQ-to-Entities statements.Developed a new line-of-business capability for our project team in the form of an iOS version of an existing web application. I developed the system architecture and coded the app using Apple’s Swift language. The app incorporates Google's Firebase Cloud Messaging for push notifications and Okta for user authentication. The app communicates over HTTPS with a set of RESTful web services that I wrote in C# that interface with the database.I modernized an existing ASP.Net web application by incorporating Bootstrap, jQuery and CSS media queries. Each page of the application contained several images and associated text. The primary challenge was to maintain the relative placement of images and text across a variety of screens sizes. As a result the application achieved a responsive web design. Developed and maintained several WCF SOAP service applications written in C# that interface with other external web services. I configured these services to operate over HTTPS and to utilize client and server certificates. I refactored several service interfaces to incorporate a data access layer that made use of Microsoft’s Entity Framework.