Job Title
FRONT END DEVELOPER II
Location
Jacksonville, FL 32221 US (Primary)
Job Type
Full-Time
Education
Bachelor's Degree
Travel
Up to 10%
Security Clearance
None
Job Description
General SummaryThe 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 ResponsibilitiesNone
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, 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.
