All things front end and some middle REST services too.

Freelance developer constantly keeping my front end development skills sharp and current. Here's what I've accomplished to date.Dinner Planner / Food Photo Gallery PWA Repository: https://github.com/mikesae/dinner-plannerArchitected and launched a progressive web application (PWA), scalable to upwards of 1000 users.• Built with yarn, React, Typescript (TS), React Testing Library (RTL) and Jest, GraphQL.• Incorporated S3 and CloudFront to optimize content delivery and improve website loading speed.• Deployed to AWS Amplify ecosystem for hosting at https://master.d41geepkgtp5z.amplifyapp.com.Mobile Hockey Roster and Schedule Repository: https://github.com/mikesae/hockey-roster-pwaDesigned and deployed an interactive high school hockey roster for mobile devices, scalable to 1000s of users.• Crafted 8 React components and 5 Netlify serverless functions with React, Typescript (TS), and SASS style sheets.• Gained expertise with Netlify platform and services, especially Netlify serverless functions. Netlify leverages AWS Lambda to handle execution.• Deployed to Netlify platform https://shenhockey.netlify.app.

Lead front end developer on the sLearning SaaS suite of applications, serving approximately 350 clients with 2K-30K users each, optimizing UI/UX and implementing responsive design and DRY principles.• Collaborated closely with UX designers and 3 product owners on iterative designs of course testing UX and password security workflow.• Led architecture and implementation of single page application (SPA) for course test taking UX using React, React Router, Redux, TypeScript (TS), LESS, Jest, React Testing Library (RTL).• Authored a RESTful API with 14 endpoints for course testing UX in C#, T-SQL, NUnit.• Re-skinned all 7 sLearning applications based on corporate design system using SASS, CSS, and ASP.NET.• Devised a new password security workflow with Knockout, CSS and supporting RESTful API with C#, resulting in 100% reduction of plain text password exposure.• Achieved 100% 508 compliance for color contrast ratios on the Learner Interface app.• Performed regular code reviews of pull requests (average 4-5 per week), maintained TeamCity build configurations, deployed and monitored releases as part of a DevOps oriented team.• Led knowledge transfer sessions for front end tools and languages like NPM, webpack, TypeScript (TS), LESS and SASS.Note: I started at HealthcareSource in 2019. symplr acquired us in 2021 but my roles and responsibilities remained the same.

Senior web developer on vision provider, member, and electronic billing web SaaS applications• Troubleshot and fixed provider issues with legacy ASP.NET provider app using C#, JavaScript (JS) and jQuery. App served 100s of vision providers across the US.• Improved member app (estimated peak load of 4K-5K active users) using ASP.NET, Knockout, and C#.• Fixed password reset / forgot password workflow of electronic billing app using C#.

Developer on SkySync, an enterprise content manager● Implemented 2-3 iterations of the front end of a responsive web application using React and CSS/LESS. ● Augmented 2-3 RESTful endpoints for cloud file transfers with C# and .NET.

Senior developer on a next generation WebHMI, 2 asset management visualization platforms, and an alarm viewer mobile application● Created 4-5 custom widgets with jQuery, JavaScript (JS), and LESS for trending live and historical data.● Built a SPA web application with AngularJS 1.3 and LESS, focusing on 3 areas such as search, favorites, and resource management.● Developed a multi-page web application with C#, Silverlight and a RESTful service backend, focusing on pages showing HMI displays.● Conceptualized and enhanced a RESTful API with C# and .NET for CRUDing alarm subscriptions and alarms for an alarm viewing application.

Senior developer on web application projects for location intelligenceBuilt front end with Silverlight and model-view-viewmodel. Developed RESTful services to provide access to server side services, with SQL Server accessed through NHibernate. Wrote thorough unit and integration tests for both client and server side components.Lead developer on .NET desktop application for site selectionIntroduced code reviews, test driven development, and continuous integration to a geographically dispersed team.Lead developer on AnySite Online, an ASP.NET web application for site selection. Replaced legacy Java application with an ASP.NET application with an AJAX front end. Introduced continuous integration and automated builds to a geographically dispersed team.Lead developer on Grande.NET desktop application.NET replacement for MapInfo's desktop mapping product, built exclusively in C#. Managed technical contributions of 5-6 engineers, requirements gathering and analysis. Built the following:● Active layout for embedded data table browsers and maps● XML-file based persistence of application state.Lead developer on MapXtreme.NET mapping SDK.NET replacement for MapInfo's MapX product line. Built the following:● API for thematic mapping● Selection API using a publish/subscribe event moderator,● XML-file based persistence with XML and XSD schema design.

First line manager to 4-5 engineersResponsible for interviewing prospects, performance evaluations, coaching, career development, mentorship of junior engineers.Lead developer on MapXMapInfo's mapping SDK for use in Visual Basic apps. Exclusively C++.