1219 Computer Science Information Technology jobs in Jacksonville,FL

Proficiency in JavaScript and TypeScript.
Proficiency in HTML5 and CSS3.
Experience with modern front-end frameworks, such as React (required) and AngularJS.
Experience with testing frameworks (e.g., Karma, Jasmine, Mocha, ViTest, Jest).
Experience with state management libraries (e.g. Redux, Jotai, Zustand).
Experience with asynchronous state management libraries (e.g. TanStack Query)
Experience with schema validation libraries (e.g. Zod, Yup).
Experience with CSS preprocessors like SASS or LESS.
Experience with utility libraries (e.g. JQuery, LoDash).
Experience building responsive and cross-browser compatible web applications.
Familiarity with Git version control.
Experience with front-end build systems using Node.js, NPM, Webpack, and Vite.
Understanding of REST APIs and how to consume them in front-end applications.
Ability to work with general directions.
Must be able to obtain a security clearance when required by the contract.
Three (3) years of experience using the same technologies LSI uses for front-end development.
Generally, applicants should have completed at least one previous project using the same technologies that LSI uses to be considered for this position.
To be considered, Front-End Developer II must present a portfolio showing their involvement in three web applications.
Portfolio must contain at least three web applications where the applicant was a contributing member of the development team. Applicant must describe their role on each project and how their contribution added value to the project. To meet this requirement, the applicant's contribution must be in the front-end development role.