> Markdown version of [/jobs/ext/2124556-java-backend-developer-kafka-webflux-graphql](https://www.wearedevelopers.com/jobs/ext/2124556-java-backend-developer-kafka-webflux-graphql). 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). --- # Java Backend Developer - Kafka / WebFlux / GraphQL - **Company:** Conch Technologies - **Location:** New Albany, OH, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Spring Security, Application Programming Interfaces (APIs), Application Performance Management, Information Systems, Spring Framework, OAuth, Spring-boot, Backend, Information Technology, Apache Kafka, Reactive Programming, Graphql - **Published:** August 19, 2026 - **Apply:** https://www.careerjet.com/jobad/us78a7ea92b680889edcdf90fc0c5303e9 ## About the Role We are seeking a skilled Java Backend Developer with strong experience in Kafka, Spring WebFlux, and GraphQL to join our development team. The ideal candidate will have hands-on experience building scalable backend applications using reactive programming and modern Java technologies. Required Qualifications * 3 5 years of experience in backend development. * Strong hands-on experience with Java, Kafka, Spring WebFlux, and GraphQL. * Strong understanding of reactive programming concepts and their application with Spring WebFlux. * Proven experience designing and implementing GraphQL APIs. * Experience with Spring Boot 2.7 or higher. * Experience with Spring Security 5.x is preferred. * Understanding of OAuth and JWT is a plus. * Bachelor's degree in Computer Science, Engineering, Information Systems, or a related field. * Strong analytical, troubleshooting, and problem-solving skills. * Ability to work independently as well as collaboratively within a team. * Excellent verbal and written communication skills. ## Description * Design, develop, and maintain scalable backend services using Java and Spring technologies. * Develop reactive applications using Spring WebFlux. * Design and implement GraphQL APIs for backend services. * Work with Apache Kafka for event-driven and asynchronous processing. * Implement secure APIs using Spring Security and related authentication technologies. * Troubleshoot application issues and provide effective technical solutions. * Collaborate with developers, architects, and other stakeholders to deliver high-quality solutions. * Follow best practices for coding, testing, documentation, and application performance., POSITION Backend Java Developer with Kafka, Spring WebFlux, and GraphQL Expertise LOCATION New Albany, OH (on-site preferred) Hybrid, with a preference for on-site Tuesday … + 17 hours ago + Apply easily ## Related Videos - [Development of reactive applications with Quarkus](https://www.wearedevelopers.com/videos/89-development-of-reactive-applications-with-quarkus) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [GraphQL Mesh – Why GraphQL between services is the worst idea and the best idea at the same time!](https://www.wearedevelopers.com/videos/9-graphql-mesh-why-graphql-between-services-is-the-worst-idea-and-the-best-idea-at-the-same-time) ## Related Articles - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)