FRONT END DEVELOPER II

Company: LSI, Inc.
Location: Jacksonville
Posted on: June 25, 2025

Job Description:

About LSI 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. Mission Our mission is to prepare our military and allies to be battle-ready through cutting-edge training products and services. Vision 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. Guiding Principles ESOP Sustainability: We do everything within our control to meet project budgets and schedules, so our ESOP prospers. Take Ownership: Each Employee-Owner takes ownership at the individual level for their words, actions, and results. Individual ownership breeds accountability. Accountability breeds trust. When we hold ourselves accountable and trust our fellow employee-owners to do the same, we realize success. Clear Communication: We project confidence in our communication using unambiguous language and providing clear purpose and direction. Pursuit of Excellence: We aggressively pursue continuous improvement both as teams and individual employee-owners. We strive to get better every day. There is no room for mediocrity. Pride in Our Work: We know the value of our work and are proud of what we produce. Customer Focus: Customers are both internal and external and we strive to give both our best efforts. Assume Positive Intent: Assume others are well-intentioned in their actions and seek additional information about the circumstances to help solve problems. Assuming positive intent in all interactions is the key to building strong teams and working together to solve problems. One Voice: Every Employee-Owner is expected to speak up if they have an idea for improvement or if they disagree with a potential course of action. Once a decision is made, the entire team commits to it and moves forward with one voice. Apply: https://www.lsijax.com/careers/ General Summary The Front End Developer II is primarily responsible for developing, testing, debugging, modifying, documenting, and maintaining front-end user interfaces and client-side code. Essential Job Functions 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. Supervisory Responsibilities None Job Requirements Knowledge, Skills, and Abilities 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. Experience with Blazor, Xamarin.Forms, Adobe Animate, and CreateJS preferred. Ability to communicate effectively, both verbal and in writing. Must be able to obtain a security clearance when required by the contract. Education and Experience 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, a Front End Developer II must present a portfolio showing their involvement on 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.

Keywords: LSI, Inc., Daytona Beach , FRONT END DEVELOPER II, IT / Software / Systems , Jacksonville, Florida