Application Developer II

LSI • Jacksonville, FL

2d • Onsite

About The Position

The Application Developer II position is a mid-level software development role responsible for designing, developing, testing, maintaining, and optimizing internal and customer-facing applications with limited supervision. This position requires demonstrated proficiency in modern development technologies, strong problem-solving abilities, and the capability to mentor junior developers. The developer will collaborate closely with cross-functional teams to deliver robust, scalable, and maintainable software solutions.

Requirements

• Demonstrated strong analytical, debugging, and problem-solving skills with the ability to assess and resolve complex technical challenges.
• Thorough understanding of the software development lifecycle (SDLC) and methodologies such as Agile or DevOps.
• Solid grasp of object-oriented programming (OOP) and design principles.
• Proficiency with modern programming languages such as C# or TypeScript, and experience with modern frameworks.
• Strong understanding of front-end and back-end integration.
• Basic understanding of web technologies (HTML5, CSS3, and TypeScript).
• Hands-on experience with database design, SQL development, and performance optimization using Microsoft SQL Server or equivalent platforms.
• Familiarity with DevOps practices, version control (Git), and CI/CD tools.
• Effective communication and collaboration skills with the ability to convey technical concepts clearly to both technical and non-technical audiences.
• Proven ability to work independently or in a lead capacity on complex development tasks while maintaining high standards of quality and reliability.
• 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.
• A bachelor’s degree in Computer Science, Software Engineering, or a closely related field from an accredited institution, and at least two (2) years of professional development experience; or
• An associate degree plus four (4) years of relevant experience; or
• A high school diploma plus six (6) years of experience; or
• Completion of a recognized coding bootcamp or technical training program, plus: At least three (3) years of relevant software development experience; or An associate degree or higher in any field.
• Internal applicants with demonstrated domain expertise in LSI applications, frameworks, or internal business systems may qualify with reduced formal experience requirements, provided they can: Exhibit comprehensive understanding of LSI application architecture, integrations, and coding standards; and Demonstrate hands-on contributions to LSI core business tools that directly support organizational operations.
• To be considered, the applicant must be ready to review their past involvement on at least two major software features, regardless of technologies used where the applicant contributed a significant portion of the code. This will include a technical analysis of the personally written code, detailing the specific problem it solved, the decisions made during implementation, and a clear justification for why that particular approach was chosen to achieve the project's goals.

Responsibilities

• Provides advanced technical support and guidance for internal users, testers, and junior developers.
• Designs, develops, tests, deploys, and maintains software applications and system components in alignment with business goals and technical specifications.
• Implements new features and enhancements to improve performance, usability, and security.
• Authors and maintains detailed technical documentation, including system designs, specifications, and test results.
• Integrates front-end and back-end systems using RESTful APIs, web services, and data processing frameworks.
• Collaborates with team members to implement solutions and resolve complex issues.
• Conducts unit and integration testing to ensure quality and stability.
• Troubleshoots and debugs application issues following established processes.
• Participates in and occasionally leads code reviews to ensure adherence to coding standards and promote best practices.
• Contributes to continuous improvement by evaluating emerging technologies and implementing innovative approaches.
• Safely handles government-furnished equipment and materials.
• Works a standard weekly schedule of 40 hours with overtime as required.
• Perform additional duties as assigned.

What This Job Offers

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