Top Senior Java Developer Jobs

Design and develop scalable software solutions, lead architecture discussions, troubleshoot issues, and mentor team members while applying best engineering practices.

Develop, test, and maintain complex front-end software components; translate requirements into working software; participate in design, code reviews, Agile teams, and troubleshooting; mentor junior staff and ensure accessibility and engineering best practices.

Design, code, test, and maintain web-based, data-driven Java applications. Translate requirements into technical designs, perform QA and performance tuning, troubleshoot and modify existing applications, provide technical leadership, and produce system documentation and operational guides.

Develop and maintain software applications, utilizing Java and Spring Boot, while collaborating with teams to deliver complex features and ensuring code quality through Git and testing practices.

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.

Design, build, and deliver scalable Java full-stack and microservices solutions for ETF platforms. Lead architecture, ensure security and quality (TDD/BDD), drive cloud-native modernization, support production stability, and apply DevOps, observability, and AI-assisted development to improve reliability and delivery.

On-site Mid/Senior backend developer to manage CI/CD/Kubernetes, develop CCDI backend services, handle database integration/migration (PG, Oracle, MongoDB, Redis), implement Kafka event streaming, support Informatica/EAI migrations, provide production on-call support, perform system monitoring, incident response, and code review. Bilingual Korean/English required.

Design, build, and maintain scalable, highly available backend services in Java. Own backend architecture, optimize performance, develop APIs and integrations, support production, conduct code reviews, and contribute to AI engineering tools and infrastructure.

Design and develop web-based applications using Java/J2EE, JSF, Spring, Servlets, XML and web services (SOAP/REST). Work with SQL/PLSQL, HTML, JavaScript and JDeveloper within SDLC and Agile processes. Contract role based in Jacksonville, FL.

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 design, develop, test, document and maintain Java/J2EE web applications using Spring/Hibernate. Collaborate with users to gather requirements, provide technical guidance, support production systems, participate in on-call rotation, and ensure high-quality design and testing.

Senior Java developer building web-based healthcare applications using Java, Spring (MVC/Boot), RDBMS, and web technologies. Responsibilities include designing, coding, testing (TDD/BDD), automation, load testing, and ensuring compliance with HL7/HIPAA in an Agile environment.

Lead Java developer responsible for designing and developing web applications, administering Drupal and Mulesoft integrations, producing architecture/design documents, troubleshooting performance, gathering requirements, and leading technical resources. Strong frontend and full-stack web skills and experience with development methodologies required.

Design, develop, test, and deploy enterprise Java applications using Spring and microservices. Perform code reviews, optimize performance, assist architecture and planning, mentor developers, and collaborate to ensure quality, CI/CD, and timely delivery.

Senior Software Engineer supporting eB2B systems: manage infrastructure, incident resolution, and file transfer operations; maintain CI/CD pipelines and DTCC/non-DTCC data feeds; ensure data integrity, performance, scalability, and security using Java, SQL, AWS, and DevSecOps practices while collaborating with business partners.

Senior Java Developer responsible for designing, developing, testing, and deploying Java/Spring-based services and scalable platforms. Collaborates with business stakeholders and global teams to integrate upstream/downstream systems, performs code reviews, architects new components or modifications, and works with cloud (Kubernetes, AWS), relational databases, APIs, and automated testing environments.

Design, develop, port, and maintain full-stack web applications for a DoD broadcast network. Implement Java (and C++) enhancements, support fielded sites, apply best practices for scalability and CI/CD, participate in agile ceremonies, debug, test, and document technical designs and processes.

Lead design and delivery of cloud-native Java microservices for ETD clearing. Perform hands-on Java development and L3 production support, drive replacement of legacy processors, implement CI/CD, observability, and AI-assisted tooling, mentor distributed teams, and ensure security, scalability, and regulatory compliance across global clearing infrastructure.

Maintain and enhance U.S. Bank's Customer Information System and Hogan platforms. Design, develop, test, and operate mainframe services/APIs, diagnose and resolve incidents, perform code reviews, ensure security/compliance, collaborate with business and cross-functional teams, mentor peers, and participate in Scrum-driven delivery.

Design, build, and scale core banking and partner backend platforms. Develop high-performance banking and public APIs, internal SDKs, and partner integrations using JVM technologies. Improve architecture, scalability, reliability, and contribute to shared platform components while transitioning Java codebases to Kotlin.

Design, develop, and maintain scalable Java/Spring Boot backend services, build RESTful APIs, optimize relational databases (Postgres), implement business logic and third-party integrations, containerize and deploy with Docker and Kubernetes, and ensure code quality through testing and reviews.

Design, build, and maintain cloud-native microservices and scalable search/data ingestion systems. Lead architecture, optimize database performance, implement event-driven solutions, mentor engineers, and collaborate across product teams to deliver reliable, production-ready cybersecurity platform features.

Design and implement complex backend services for Binance Square. Collaborate with product, DevOps, and QA to deliver high-quality microservices, promote engineering best practices, and perform code reviews.

Design, implement, and deliver enterprise Java/JEE solutions and GUIs in an Agile environment. Collaborate with systems engineering, DevSecOps, test automation, and cloud teams across the SDLC. Develop microservices and SOA-based systems, use OOP and design patterns, integrate web services/JMS/XML technologies, and support build/test/release. Must work on-site and meet government security and SAP access requirements.