> Markdown version of [/jobs/ext/1791738-application-developer-ii](https://www.wearedevelopers.com/jobs/ext/1791738-application-developer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # APPLICATION DEVELOPER II - **Company:** LSI, Inc - **Location:** Jacksonville, FL, United States - **Experience:** Experienced - **Salary:** $65,000.0 - $86,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Applications Architecture, Software Applications, HTML5, Unit Testing, Business Systems, C Sharp (Programming Language), Cascading Style Sheets (CSS), Code Review, Database Design, Database Development, Software Debugging, DevOps, Microsoft SQL Server, Object-Oriented Software Development, Performance Tuning, Systems Development Life Cycle, Software Engineering, TypeScript, Web Application Frameworks, Web Services, Backend, Git, Information Technology, Integration Frameworks, Web Technologies, Front End Software Development, Restful APIs, Software Version Control, Programming Languages - **Published:** July 23, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=009c49726f373c6b ## About the Role * 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. Education and Experience * 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. ## Description 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. Essential Job Functions * 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. ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Slopquatting, API Keys, Fun with Fonts, Recruiters vs AI and more - The Best of LIVE 2025 - Part 2](https://www.wearedevelopers.com/videos/1765-slopquatting-api-keys-fun-with-fonts-recruiters-vs-ai-and-more-the-best-of-live-2025-part-2) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers)