> Markdown version of [/jobs/ext/4428627-application-developer-iii-java-sql](https://www.wearedevelopers.com/jobs/ext/4428627-application-developer-iii-java-sql). 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 III - Java & SQL - **Company:** OpTech LLC - **Location:** Detroit, MI, United States - **Experience:** Expert - **Salary:** $112,320.0 - $114,400.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Applications Architecture, Unit Testing, Batch Processing, Code Generation, Software Quality, Code Review, Database Queries, Software Debugging, Software Design Patterns, Object-Oriented Software Development, Performance Tuning, Scrum Methodology, Software Engineering, SQL Stored Procedures, SQL Databases, Freeform SQL, Enterprise Software Applications, Sql Optimization, GitHub Copilot, Spring-boot, AI Coding Agents, Backend, Information Technology, Deployment Automation, Restful APIs, Code Restructuring, Software Version Control, Spring Batch - **Published:** October 13, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=f5355434bc0360b3 ## About the Role * Minimum 5 years of professional, hands-on application development experience. * Strong proficiency in Java, including modern Java versions and features. * Hands-on experience with Spring Boot and the Spring ecosystem. * Experience developing and maintaining Spring Batch applications. * Advanced SQL skills, including complex queries, joins, subqueries, and performance tuning. * Experience developing, maintaining, and troubleshooting SQL stored procedures. * Experience designing and developing REST APIs and backend services. * Strong understanding of object-oriented programming, design patterns, and application architecture. * Experience with Git/GitHub and source control practices. * Hands-on experience with AI coding assistants such as GitHub Copilot or similar tools. * Experience with unit testing, debugging, code reviews, and application troubleshooting. * Familiarity with CI/CD pipelines and automated deployments. * Experience working in Agile/Scrum development environments. * Healthcare payer or health insurance industry experience is required. * Must be local to the Detroit area and able to work onsite once per week. Education * Bachelor's degree in Computer Science or an equivalent field required., * Do you have 5+ years of hands-on Java application development experience? * Do you have hands-on experience with Spring Boot and Spring Batch? * Do you have advanced SQL experience, including stored procedures and performance tuning? * Do you have hands-on healthcare payer or health insurance industry experience? * Do you have experience developing REST APIs? * Do you have hands-on experience with Git/GitHub and AI coding tools such as GitHub Copilot? * Are you local to the Detroit, MI area and able to work onsite once per week? Work Location: Hybrid remote in Detroit, MI 48226 ## Description The ideal candidate will have healthcare payer experience and a strong technical background in backend development, batch processing, database programming, and API development. This role is focused on hands-on application development rather than team leadership., * Develop, maintain, enhance, and deploy enterprise applications using Java and Spring Boot. * Develop and support Spring Batch applications and batch-processing solutions. * Write, maintain, and optimize complex SQL queries and stored procedures. * Design, develop, and maintain REST APIs and backend services. * Participate in application design and technical solution development. * Create and execute unit tests, troubleshoot defects, and improve code quality. * Participate in code reviews and follow established coding standards. * Use AI-assisted coding tools to support code generation, refactoring, testing, debugging, and documentation. * Maintain technical documentation based on functional requirements. * Support CI/CD pipelines and automated deployments. * Collaborate with team members in an Agile/Scrum environment.