Backend Java Developer

Backend Java Developer

Location: Columbus (New Albany), OH (LOCAL Candidates - 3 Days Hybrid Tuesday-Thursday)

Duration: 6-12 Months

Description:

Backend Java Developer with 7-8 years of experience and strong expertise in Java, Kafka, Spring WebFlux, and GraphQL . This role will help design, build, and support responsive, efficient, and scalable backend services for enterprise applications. The ideal candidate brings a strong foundation in modern backend development, event-driven architecture, reactive programming, API design, and cloud-native deployment practices.

Key Responsibilities

• Develop and maintain backend services using Java and Spring Boot, incorporating robust security practices with Spring Security.
• Design and implement GraphQL APIs to support flexible, efficient data retrieval and manipulation.
• Apply reactive programming concepts using Spring WebFlux to build non-blocking, responsive, and resilient applications.
• Manage Kafka-based event-driven architectures, including event streaming, topic configuration, and Spring Boot integration with Kafka.
• Create custom Kafka producers and consumers using Java and Spring Boot for reliable message processing and handling.
• Support and enhance Kafka implementations using Confluent Cloud where applicable.
• Implement and maintain data management solutions using MyBatis, JDBC, and SQL.
• Deploy applications on Tomcat while ensuring high availability, performance, and maintainability.
• Use Maven for dependency management and Docker for application containerization.
• Support container orchestration and application scaling using Docker and Kubernetes.
• Follow test-driven development practices to improve code quality and long-term maintainability.
• Develop CI pipelines using GitLab CI and support deployments using Helm where applicable.

Required Qualifications

• 7-8 years of experience in backend development with Java, Kafka, Spring WebFlux, and GraphQL.
• Bachelor's degree in Computer Science, Engineering, Information Systems, or a related field.
• Strong understanding of reactive programming concepts and their application in Spring WebFlux.
• Proven experience designing and implementing GraphQL APIs.
• Experience with Spring Boot 2.7 or higher and Spring Security 5.x preferred.
• Understanding of OAuth and JWT is a plus.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Ability to work independently and collaboratively within a team environment.
• Strong verbal and written communication skills.