Front End Developer II

LSI • Jacksonville, FL

21d • Onsite

About The Position

The Front End Developer II is primarily responsible for developing, testing, debugging, modifying, documenting, and maintaining front-end user interfaces and client-side code. LSI is an employee-owned company that employs dynamic teams of professionals – people with the finest technical expertise, a level of passionate creativity, and a truly visionary outlook who deliver innovative training solutions that exceed our customers’ expectations. Everyone at LSI has a personal stake in our success. LSI has over 400 training support experts, engineers, and craftsmen on staff who develop state-of-the-art high-fidelity training devices, complex computer-based, highly interactive distributed learning products, and comprehensive, dynamic technical publications. LSI employee-owners collaborate to deliver training products and services for a myriad of programs and customers, using leading-edge technology and proven processes. Our mission is to prepare our military and allies to be battle-ready through cutting-edge training products and services. Our vision is to be the premier provider of military training solutions, renowned for our innovation and excellence. Through employee-ownership and teamwork, we will shape a future where every military service member is equipped to succeed in their mission.

Requirements

• General knowledge of the software development lifecycle.
• General understanding of dynamically typed languages.
• 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.
• Oral and written communication skills are required.
• Possesses sound analytical problem-solving and documentation skills.
• Ability to work with general directions.
• Ability to communicate effectively, both verbal and in writing.
• Must be able to obtain a security clearance when required by the contract.
• Bachelor's degree in computer science, programming, or a closely related field from an accredited college or university, or an associate degree plus two (2) years of experience, or a high school diploma plus four (4) years of experience.
• 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.

Nice To Haves

• Experience with Blazor, Xamarin.Forms, Adobe Animate, and CreateJS preferred.

Responsibilities

• Develop, test, debug, and maintain front-end user interfaces and client-side code using modern JavaScript frameworks.
• Create new interface layouts and features, ensuring they are user-friendly and accessible.
• Provide technical support and training to end-users, troubleshooting issues related to user interfaces and client-side code in use by LSI and our customers.
• Collaborate with the development team to implement new features and improve existing code.
• Conduct thorough testing of new user interface layouts and features, documenting results.
• Troubleshoot and debug front-end scripts developed internally.
• Stay up-to-date with the latest front-end development trends and technologies.
• May assist in the design and architecture of new front-end development solutions.
• Participate in code reviews to ensure code quality and maintainability.
• Must be capable of safely handling government-furnished equipment and materials.
• Must be available to work a standard weekly schedule with overtime as required.
• Perform other duties as assigned.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level