Java Backend Developer

Senior Java Backend Developer responsible for designing, developing, testing, and deploying Java-based microservices using Spring Boot and related technologies.

Whippany, New Jersey, United States
Contract
Hybrid
Posted Nov 9, 2026

INDUSTRYSoftware & InternetSaaS & Enterprise Software

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Responsibilities

Design, develop, test, and deploy Java-based applications
Write clean, scalable, and efficient code following best practices
Collaborate with cross-functional teams (product, QA, DevOps)
Troubleshoot, debug, and upgrade existing systems
Participate in code reviews and ensure code quality standards
Develop RESTful APIs and integrate with third-party services
Optimize application performance and scalability
Maintain technical documentation

Requirements

Bachelor's degree in Computer Science or related field

Nice to have: Hibernate, JPA, Docker, Kubernetes, CI/CD pipelines, Apache Kafka, Agile, Scrum

Skills

Java Spring Boot SpringJava 21Mongo RESTEvent based applicationCucumberKarateJunit5GitlabContainer based deploymentKubernetes MySQL PostgreSQL NoSQLOOPGit AWS Azure GCP Spring Boot Spring Java Mongo RESTCucumberKarateJunit5Gitlab Kubernetes Docker Git AWS Azure GCP

Full description

Job Titles: Java Backend Developer Location: Whippany, NJ (Hybrid) Duration: Long Term Contract Job Description: Hands on with Spring Boot 3, Spring, Java 21, Mongo, REST, Event based application experience, Cucumber/Karate/Junit5. Eng - Gitlab, Container based deployment (Kubernetes) - Senior Level Key Responsibilities Design, develop, test, and deploy Java-based applications Write clean, scalable, and efficient code following best practices Collaborate with cross-functional teams (product, QA, DevOps) Troubleshoot, debug, and upgrade existing systems Participate in code reviews and ensure code quality standards Develop RESTful APIs and integrate with third-party services Optimize application performance and scalability Maintain technical documentation Required Skills & Qualifications: Bachelor's degree in Computer Science or related field Strong proficiency in Java (8 or above) Experience with Spring / Spring Boot framework Knowledge of REST APIs and microservices architecture Familiarity with databases (MySQL, PostgreSQL, or NoSQL) Understanding of object-oriented design principles (OOP) Experience with version control (Git) Basic knowledge of cloud platforms (AWS/Azure/GCP) Strong problem-solving and analytical skills Preferred Skills Experience with Hibernate/JPA Knowledge of Docker & Kubernetes Familiarity with CI/CD pipelines Exposure to Apache Kafka or messaging systems Understanding of Agile/Scrum methodologies. Java backed position with java spring boot Microservices Agile methodology, AI tools and production issues handling in AWS x, OpenShift, and other areas.