> Markdown version of [/jobs/ext/4637618-core-java-ui-developer-expert](https://www.wearedevelopers.com/jobs/ext/4637618-core-java-ui-developer-expert). 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). --- # Core Java & UI Developer Expert - **Company:** Intone Networks - **Location:** Atlanta, GA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Application Performance Management, HTML5, Build Automation, Unit Testing, Cascading Style Sheets (CSS), Software Quality, Continuous Integration, Relational Databases, Software Debugging, Design of User Interfaces, Hibernate (Java), Human-Computer Interaction, Java Persistence API, Java Virtual Machine (JVM), Spring Framework, Object-Oriented Software Development, Performance Tuning, Scrum Methodology, Secure Coding, Software Engineering, TypeScript, Multithreading, Freeform SQL, Enterprise Software Applications, ReactJS, Concurrency, Spring-boot, Software Security, Backend, Git, AngularJS, Front End Software Development, Restful APIs, Software Version Control, Microservices - **Published:** November 8, 2026 - **Apply:** https://www.careerbuilder.com/job-details/core-java-ui-developer-expert-atlanta-ga--2326347e-f83a-4b47-8592-8c020080c432 ## About the Role Java, User Interface/Experience (UI/UX), Software Engineering, Software Engineering, Microservices, Java, User Interface/Experience (UI/UX), Application Programming Interface (API), REST (Representational State Transfer), CSS (Cascading Style Sheet), * Required * Minimum 8+ years of overall software application development experience * Minimum 6+ years of hands-on Core Java development experience, including Java 8+ features, collections, concurrency/multithreading, exception handling, JVM fundamentals, and object-oriented design * Minimum 4+ years of hands-on UI/front-end development experience using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3 * Minimum 4+ years of experience developing enterprise backend services using Spring, Spring Boot, RESTful APIs, and microservices * Minimum 3+ years of experience integrating front-end applications with REST APIs and distributed backend services * Minimum 3+ years of experience with relational databases and SQL; experience with ORM frameworks such as Hibernate/JPA * Minimum 3+ years of experience with Git-based source control, CI/CD pipelines, automated builds, unit testing, and code-quality practices * Strong understanding of application security, authentication/authorization, secure coding practices, and production-grade error handling * Demonstrated experience with performance optimization, debugging, root-cause analysis, and production support for enterprise applications * Experience working in Agile/Scrum teams and collaborating across architecture, engineering, QA, and product functions ## Description We are seeking a Core Java & UI Developer Expert for a contract position in Atlanta, Georgia. This is a 6+ month engagement requiring deep expertise across full-stack development, from backend microservices to modern front-end interfaces., * Develop and maintain enterprise backend services using Spring, Spring Boot, RESTful APIs, and microservices architecture * Build responsive, user-centric UI applications using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3 * Integrate front-end applications with REST APIs and distributed backend services * Design and optimize relational database schemas, write complex SQL queries, and work with ORM frameworks such as Hibernate/JPA * Implement secure coding practices, authentication/authorization mechanisms, and production-grade error handling * Optimize application performance, conduct debugging, perform root-cause analysis, and provide production support for enterprise applications * Manage source control with Git-based systems, configure CI/CD pipelines, automate builds, and enforce code-quality practices through unit testing * Collaborate across architecture, engineering, QA, and product teams in an Agile/Scrum environment