Samuel R. Listopad II

Dynamic Senior Developer with extensive experience , specializing in API design and development. Proven track record in steering agile methodologies and enhancing system architecture. Skilled in Java and problem-solving, I have successfully built data delivery systems that empower businesses and users.

AVAILABLE UPON REQUEST

• Curl, Added openssl pkcs12 support for use in mutual authentication, http://curl.haxx.se
• Robot Improv, Co-authored research in believable agents, http://www.cs.cmu.edi/~illah/PAPERS/robotimprov.pdf

• SENIOR DEVELOPER, 84.51 LLC, Deerfield, IL, 08/01/16, present, Maintenance of Market6 legacy code, Designed and built apis for data delivery system for loyalty data in order to help users find trends in grocery purchasing, Helped steer API first development and practices in order to move to Microsoft's Azure cloud, Designed and developed fast start system for building APIs within the company to promote best practices such as specification first development and clean coding practices, Java (8,11,17) w/ Spring Boot, Angular, Github Actions, Python, Java, Kong, OpenApi, Api Tooling, Terraform
• SENIOR DEVELOPER, Market6, Deerfield, IL, 03/01/16, 08/01/16, Built and maintained data retrieval and display system for grocery vendors using data from Kroger., .NET, MSSQL, React, Netezza
• SENIOR DEVELOPER, Cardinal Holdings Inc., Evanston, IL, 01/01/11, 03/01/16, Re-architected and built a Patent document retrieval and storage system., Built and maintained an information portal for clients to analyze their IP portfolios or searches against IP landscapes., Built a distributed system for information retrieval using dynamically managed Amazon Web Service instances., Used bootstrap and durandal to build a single page application for cataloging and visualizing potential risk and opportunity in one's patent / product portfolio., Mentored and directed junior devs to allow them to reach their full potential in making meaningful contributions to the team., Helped direct the team to more agile methodologies and streamline processes to make team more efficient., .NET Web API 2, Dapper ORM, Sql Server 2012, .NET Mvc 4, Knockout.js, bootstrap.js, AWS EC2 Instances, .NET MVC 3/4, SQL, Durandal.js
• LEAD WEB DEVELOPER, Authentify, Inc., Chicago, IL, 04/01/01, 01/01/11, Built and maintained web entry point for a telephony SaaS system using ASP on IIS 5/6., Built and maintained a billing system using Python and MSSQL., Built and maintained a service extranet for our customers including content downloads and statistical information using PHP and jQuery., Research projects included integration with Radius, integration with PKI vendors, OAUTH, and others.
• PROGRAMMER, Nummus Technology / interCap, Chicago, IL, 07/01/99, 04/01/01, Wrote backend Beans for a trading platform for commodities trading in Java., Wrote a general ledger for the trading system in Java.