Kevin Stephenson Email & Phone Number

Denver, Colorado, Us

-Full stack .NET development using primarily JavaScript, C#, and SCSS-Developed lodging details component in ReactUser controls filter bar which retrieves data from a REST API which runs calculations and makes additional async calls as necessary. Renders lodging information as list of rooms with their details, images in a carousel, pricing, and packages-Rearchitected Lodging Results component to significantly improve performance by moving all C# code to Javascript and utilizing async. Search previously finished in 12-30s, and 3-7s after my changes-Created a lodging property map component using Javascript, Mapbox and C#. Showed prices on the map which could be clicked on to reveal some basic information about the lodging property, and links to the details page-Rearchitected lodging details pages to use async / await in parallel to improve performance by at least 100%, and 300%+ in longer running situations-Developed new API Libraries to GET / POST data using either OAuth 2.0 tokens or password-based authentication-Investigated and fixed mini cart issues which were causing server instability. Refactored synchronous C# code to use async for mini cart, including adding, removing, and getting cart items. Reduced amount of server round-trips and unnecessary external API requests to improve performance-Implemented Recaptcha v3 to checkout to reduce bot traffic-Investigated and fixed many issues in checkout which could cause sales to get blocked or post incorrect data to the POS system-Updated gulp.js SCSS compilation to improve CSS publishing speed by 50-75%

Portland, Oregon, Us

-Full stack .NET development using JavaScript, jQuery, Kendo UI and Bootstrap for front end, C# .NET MVC / Web API for back end and repository, and MSSQL and PostgreSQL for the database-Improved and migrated the customer, address, and container management system from a Windows form application to a web based system-Developed a container location management system using Google Maps API. Dispatchers could view the GPS point of where containers were picked up compared to the location in the database. Containers could be mass-moved or dragged individually so the correct location could be saved-Created page to save text templates that would be stamped on captured pictures. Would render a preview of the template with the canvas element-Quickly created a full dashboard for the CEO from scratch to catch the attention of a large prospective customer-Developed several grids for data management end to end-Created a UI for video browsing and playback-Helped create an Android version of our in-truck software using Cordova. Improved what was originally delivered by utilizing the JavaScript module import / export pattern and using Javascript promises where appropriate. Used Java to make plugins when native Android functionality was needed-Refactored core functionality within the Android app which reduced the amount of code, made it faster, and eliminated several bugs which would cause data loss, or incorrect data to be saved

Portland, Oregon, Us

- Full stack development using ASP.NET MVC, C#, SQL, Entity Framework, JavaScript, and CSS.- Created Volunteer Background Application for volunteers to easily enter their information so Security Services could run a background check. It also provided email feedback for the users after the check was complete.- Developed Physical Count Application for school staff to input the number of students in each classroom. Administrators could view counts and generate reports.- Revamped a web application used by Telecom and faculty to keep track of staff at particular phone numbers and locations. Had a side by side comparison feature to see at a glance which numbers changed.

Bachelor Of Science (Bs), Computer Science

High School Diploma