Top Java Developer Jobs in Cincinnati, OH

Analyze and tune J2EE applications for performance; identify root causes and implement optimizations; design systems meeting NFRs (throughput, response times); blueprint API/MicroServices integration; use WebSphere, Spring, Apigee and profiling/load-testing tools; validate performance test plans and collaborate with development teams.

Develop and maintain Java-based web applications using Spring (Core and MVC), build RESTful JSON services, implement front-end with HTML/CSS and JavaScript (OO), and leverage JS frameworks like jQuery. Collaborate with the client and participate in on-site interviews.

Design and document requirements; develop Java/J2EE microservices using Spring/Spring Boot; deploy on Tomcat/WebSphere and Linux; implement REST/JSON APIs; use CI/CD and test tools (Jenkins, Maven, Ant, JMeter, SOAP UI, Git); perform configuration, validation, and deployment; capture and map business processes; work in a consulting environment requiring travel.

Integrate backend services into microservices. Develop and consume web services using Java 6, Spring and JAX-WS, write SQL and stored procedures against Oracle, and build with Maven. Strong technical and communication skills required; local in-person interviews.

Design, build, and maintain scalable enterprise full-stack applications using Java, Spring Boot, microservices, and modern front-end frameworks. Implement cloud-based solutions on AWS, contribute to CI/CD and DevOps automation, optimize performance and security, and integrate AI-driven capabilities using Python and orchestration tools like LangChain and LangGraph.

Analyze legacy TIBCO BusinessWorks/MFT processes to extract business logic, design and build a decoupled Java/Spring Boot microservices platform, migrate protocols to Kafka/RabbitMQ/REST, translate XML-heavy transformations to modern formats, and validate performance and SLAs to match legacy throughput.

Design, build, and maintain Java/J2EE multi-layer applications and APIs. Collaborate with architects and DevOps to implement CI/CD, code quality, testing, and database solutions (DB2/Oracle, PL/SQL). Support cross-team delivery, resolve technical roadblocks, and drive process improvements in an asset management/financial services context.

Lead reverse-engineering of TIBCO BW/MFT processes, document business rules, and reimplement them as modular Java/Spring Boot microservices. Migrate protocols to Kafka/RabbitMQ/REST, ensure data consistency, and perform performance testing to match legacy SLAs.

Design and build Java/J2EE solutions using Spring and APIs; develop webservices, DB schemas, PL/SQL and transactional SQL in DB2/Oracle; collaborate with architects, developers and DevOps to implement CI/CD (Jenkins, uDeploy), ensure code quality (Sonar), perform code reviews and testing, resolve technical roadblocks, and drive process improvements. Requires strong communication and teamwork.

Reverse-engineer TIBCO BW/MFT processes to extract business logic, then design and implement a modular Java/Spring Boot microservices replacement. Migrate protocols to Kafka/RabbitMQ/REST, translate XML transformations, ensure data persistence and consistency, and validate performance to meet existing SLAs.

Design, develop, and modernize software by translating legacy mainframe code (COBOL/ASM/JCL/Copybooks) into Java microservices. Support UI integration, relational and hierarchical databases, batch and real-time processing, CI/CD, cloud-native and ZT/ICAM integration, and use AI/ML tools to assist translation and optimization. Work supports pre-production, testing, and integration activities.

Develop and maintain core Elasticsearch infrastructure and shared platform features. Design scalable APIs, solve performance and concurrency issues, improve observability and CI/CD, automate developer workflows, lead cross-team projects, support complex operational investigations, and use AI to accelerate development and debugging.

Design, build, and improve Elasticsearch distributed-systems components for scalable, concurrent, and consistent indexing. Maintain cluster coordination for performance and resilience, push system scale limits, investigate performance and concurrency issues, support operations/support engineers, and lead projects involving multiple engineers from design through delivery.

The role involves improving Elasticsearch's distributed components, maintaining cluster coordination systems, and addressing complex issues to optimize performance and scalability.

The Staff Engineer will leverage over 5 years of experience in Java, JavaScript, and frameworks to develop robust solutions, mentor teammates, and enhance client outcomes while utilizing agile methodologies and cloud development tools.

Seeking a Staff Engineer with 5+ years in Java, focusing on mentoring teammates, solving client challenges, and conducting cloud development.

Senior Java engineer responsible for designing, developing, and maintaining scalable, secure backend systems using Java and modern frameworks. Participate in architecture, collaborate with product and security teams, write maintainable code, and adopt AI-assisted development tools while contributing to open-source efforts.

Lead backend development and support internal fraud and financial systems. Design, develop, test, deploy, and maintain Java-based services (Java 21, Spring Boot) on Windows/Linux, implement REST/SOAP APIs, use ORM (JPA/Hibernate) and relational databases, troubleshoot production issues, create documentation, and collaborate within an Agile team.

Design, build, and maintain Java back-end services and Vue front-end components. Translate requirements into functional applications, ensure performance and quality, identify and fix bugs, write reusable libraries, implement automated tests (TDD), and collaborate with the team on architecture, CI/CD, and code quality.

The Java Developer with Oracle SOA will provide production support, coordinate with teams and vendors, monitor applications, handle issues, and ensure compliance with business processes while working in a 24/7 operational environment.

The Java Developer will work with Java, C, C++, and various scripting technologies. Responsibilities include programming, collaborating with teams, and supporting creative solutions. Knowledge in the manufacturing domain and six sigma certification is a plus.

The Java Developer will work on programming in Java, C, C++, and scripting along with database tasks, ensuring coordination with client teams for deployment and testing.

The Java Developer will provide production support, coordinate with teams, analyze processes, execute testing, and handle Java applications. They will ensure compliance, provide operational support, and create well-documented code.

The job requires a Java Developer with strong programming skills, experience in Java and associated technologies, and excellent communication abilities.

Develop and operate Java Spring Boot microservices, deploy and manage services on Kubernetes, perform JVM profiling and heap analysis, load test, diagnose memory leaks, OOMs and P99 latency spikes, remediate security vulnerabilities, and maintain GitHub-based CI/CD and branching workflows.