At least 1 year of providing on-site technical support for custom-off-the-shelf systems (COTS).This classification requires at least 5 years of experience within the last 7 years in application development in object-oriented development (i.e. NET, Java, Ruby-on-Rails), Client-Side Scripting frameworks (JavaScript, React, jQuery), Mobile Development (.NET Maui, React Native), Apple Development (Swift), Relational Databases (SQL Server, MySQL, Oracle DB). NET 8+, Entity Framework, Java, Spring Boot, Hibernate, Ruby, Ruby-On-Rails, Ruby Gems, Rails Api, web sockets); Proficient in client-side scripting JavaScript, jQuery, Angular, or React; Hands-on experience with database development; Strong knowledge of RESTful API design, development, and integration; and experience building and maintaining secure, scalable web applications.