Top Senior Java Developer Jobs in Columbus, OH

Develop and maintain scalable Java and Spring Boot backend applications and REST APIs. Optimize CPU, memory, and overall application performance; identify bottlenecks; resolve production issues; and contribute to architecture, code reviews, reliability, and scalability. The role also involves Node.js or Python FastAPI services, cross-functional collaboration, and potential work with GraphQL, generative AI, cloud platforms, containers, CI/CD, and monitoring tools.

Designs, develops, tests, documents, and operates large-scale distributed software products for Allstate’s Enterprise Payments organization. Responsibilities include building Java and Spring Boot REST APIs, designing microservices, collaborating on system architecture, practicing paired programming and test-driven development, establishing CI/CD pipelines, improving performance, securing APIs, supporting production applications, and contributing to Agile planning, retrospectives, and knowledge sharing.

Lead and deliver secure, high-quality full-stack services: design, develop, test, deploy, and operate production workloads. Drive architecture decisions, reliability improvements, automation/CI-CD, and mentor engineers while partnering with product and stakeholders. Evaluate vendors/solutions and promote engineering best practices across teams.

Develop server-side Java applications on Linux, focusing on network performance management and cloud technologies. Participate in all software development phases and offer mentorship.

The Senior Middleware/Java Developer will leverage technologies like JMS, ActiveMQ, Apache Camel, Core Java, and J2EE to develop and support middleware solutions.

USM Business Systems Inc. seeks a Java Developer with 5+ years' experience to implement Java and SQL skills for application development.

The role requires a Senior Java Web Services Developer with performance engineering experience to identify and resolve performance issues in applications using Dynatrace and OPnet.

The Java Developer will create, deploy, and support large-scale applications, ensuring quality through testing. Collaboration in an Agile environment is essential.

Investigate and resolve data-quality issues in large-scale distributed systems. Design Java-based repair pipelines and idempotent correction jobs for high-volume datasets, debug existing code, use AWS services for queue-driven and batch workflows, optimize performance and concurrency, and communicate technical findings and risks to stakeholders.

Designs, implements, and runs Java Spring Boot microservices and REST APIs; leads design, CI/CD, TDD, performance tuning, security, and cross-product collaboration. Coaches teams and owns product KPIs and production support.

Senior Java developer to design and build distributed applications using Kafka, Spring Framework, RESTful and SOAP web services, and AWS. Work with microservices, Scala/Spark and Big Data technologies; contribute to application design and potentially lead a small team. Payments experience and DevOps/Agile familiarity are a plus.

Design, build, and maintain scalable J2EE business applications. Implement features, fix bugs, participate in code reviews, automate tests, optimize performance, and produce documentation.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

Senior Java/J2EE web-tier developer to design frameworks, build reusable infrastructure components, implement socket/IP solutions, and create cross-browser UI widgets. Must have strong experience with Spring, Struts, Hibernate/iBatis/JPA, JDBC/SQL, XML, web services, SVN, and Google Web Toolkit. Will perform PoCs, collaborate across technologies, and communicate technical solutions clearly.

Develop Java applications integrated with Oracle PL/SQL; perform database tuning, performance improvements and data analysis. Maintain proactive communication and collaborate with stakeholders to deliver solutions.

Develop and maintain server-side applications using Core Java and Spring (MVC). Implement web services, ensure web security, use Java collections, and work with SQL databases while contributing to design and architecture.

Develop and maintain Java applications with strong Oracle PL/SQL expertise. Perform database tuning, performance improvements, and data analysis. Require proactive attitude, excellent communication, and at least six years of development experience.

As a Full-Stack Java Developer, you will design, build, and optimize microservices and customer-facing applications, working with various cloud technologies and collaborating with agile teams.

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.

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.

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.

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.