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# Senior Java Full Stack Developer - API Integration

- **Company:** Tech3pillars Technologies
- **Location:** Phoenix, AZ, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, HTML5, User Authentication, Microsoft Azure, Cascading Style Sheets (CSS), Software Quality, Code Review, Continuous Integration, DevOps, Java Platform Enterprise Edition (J2EE), Gradle, Hibernate (Java), Java Persistence API, Spring Framework, PostgreSQL, Apache Maven, Enterprise Messaging Systems, MySQL, OAuth, Oracle (Applications), Software Engineering, SQL Databases, Systems Integration, TypeScript, Spring-mvc, ReactJS, Database Optimization, Spring-boot, Software Security, SOAPAPI, Backend, Git, AngularJS, Apache Kafka, Front End Software Development, Restful APIs, Docker, Jenkins, Microservices
- **Published:** November 12, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-java-full-stack-developer-api-integration-phoenix-az--1e15071e-f49b-425f-bbd6-40dda1c28533

## About the Role

Java, Software Engineering, Application Programming Interface (API), Java, Application Programming Interface (API), Software Engineering, Java Platform Enterprise Edition (Java EE/J2EE), Spring MVC, Spring Framework, Microservices, * Strong experience in Java, J2EE, and Java 8/11/17.

 * Expertise in Spring Boot, Spring MVC, and Spring Framework.
 * Hands-on experience with Microservices Architecture.
 * Strong experience in RESTful APIs, SOAP Web Services, and API Integration.
 * Experience in developing, consuming, and integrating enterprise APIs.
 * Strong frontend development experience using Angular or React.
 * Proficiency in JavaScript, TypeScript, HTML5, and CSS3.
 * Experience with SQL databases such as Oracle, PostgreSQL, or MySQL.
 * Knowledge of Hibernate, JPA, and database optimization.
 * Experience with application security, authentication, and authorization (OAuth 2.0, JWT).
 * Hands-on experience with Git, Maven/Gradle, Jenkins, and CI/CD pipelines., * Experience with AWS or Azure cloud platforms.
 * Knowledge of Docker and Kubernetes.
 * Experience with Kafka or other messaging technologies.
 * Strong problem-solving and communication skills.
 * Ability to work independently in an onsite team environment.

## Description

* Design, develop, and maintain scalable Java Full Stack applications.
 * Build and integrate REST/SOAP APIs with internal and external enterprise systems.
 * Develop backend services using Java, Spring Boot, and Microservices.
 * Develop responsive and user-friendly frontend applications using Angular or React.
 * Implement secure API integrations, authentication, and authorization mechanisms.
 * Collaborate with architects, business analysts, QA, and DevOps teams.
 * Troubleshoot application issues, optimize performance, and ensure code quality.
 * Participate in code reviews, technical discussions, and Agile ceremonies.