Mark Sandman Email & Phone Number

United States

Full ownership of point of sale software and supporting products, from design and implementation to integration and delivery. • Converted an existing ASP.NET (Framework) MVC application to ASP.NET Core 5.0 Web API running in a Linux Docker container• Created a Loyalty application that communicates with Verifone’s Commander EF Loyalty Interface over TCP/IP with TLS support using C# .NET Core 5.0• Created an application to act as middleware so Gilbarco’s Passport Loyalty Interface… Show more Full ownership of point of sale software and supporting products, from design and implementation to integration and delivery. • Converted an existing ASP.NET (Framework) MVC application to ASP.NET Core 5.0 Web API running in a Linux Docker container• Created a Loyalty application that communicates with Verifone’s Commander EF Loyalty Interface over TCP/IP with TLS support using C# .NET Core 5.0• Created an application to act as middleware so Gilbarco’s Passport Loyalty Interface limited to TCP/IP to communicate with an existing Loyalty Service using HTTPS in C# .NET Core to run on both Linux and Windows• Designed and implemented an Electronic Payment Server (EPS) following the Conexxus spec. to interact with existing payment providers and a new cloud-based Point-of-Sale in C# with a LiteDB NoSQL database. Communication with the cloud-based Point-of-Sale using STOMP messaging queue over websockets.• Improved security by implementing End-to-End encryption; reduced certification time and audit burden by removing the point of sale from PCI DSS scope• Brought new revenue by designing and implementing new product, an Asset Management application to push local asset and machine information to a RESTful web service using C# .NET and asynchronous messaging• Reduced debugging time by creating graphs for log analysis using Python, Matplotlib and Pandas• Designed and implemented the POS side of a mobile food ordering app in C# .NET using asynchronous messaging with SignalR, OData REST API, and NAXML standards• Upgraded installer to Inno Setup and used Pascal Script to contact Identity Service with OAuth to validate and track installations• Added support for PAX PIN-pads to Point-of-Sale and EPS using Poslink SDK DLL• Facilitated continuous integration of software with Git, Maven, Jenkins, and Nexus Repo• Automated installer & release note creation with Python and Jenkins REST API, & Axosoft REST API Show less

• Responsible for all information technology, hardware and software: · Built, maintained, and repaired all desktop computers used in the business. · Installed, tested and maintained printers and other peripherals. · Installed, tested and evaluateed software packages before deployment. · Analyzed and troubleshooted hardware and software malfunctions; used PCI debug card to diagnose and remedy computer hardware issues. · Used RDP and VNC software to provide remote… Show more • Responsible for all information technology, hardware and software: · Built, maintained, and repaired all desktop computers used in the business. · Installed, tested and maintained printers and other peripherals. · Installed, tested and evaluateed software packages before deployment. · Analyzed and troubleshooted hardware and software malfunctions; used PCI debug card to diagnose and remedy computer hardware issues. · Used RDP and VNC software to provide remote customer support.• Upgraded website based on business needs: · Migrated talent data to MySQL database · Simplified maintenance of talent data using HTML5, JavaScript, PHP and AJAX · Added a search interface using PHP, MySQL and AJAX · Created a gallery using PHP to dynamically display talent information and portfolio photos · Utilized PHP and AJAX to give management control over website content to improve customer experience• Trained staff in use of Adobe Photoshop for digital image manipulation• Performed all duties under minimal supervision Show less