Top Senior Java Developer Jobs

Senior Java developer role to design and build Java/J2EE applications using Spring and Hibernate, and develop REST and SOAP web services. Permanent, full-time, onsite position with locations including Wilmington, DE.

Develop and maintain Java/J2EE enterprise web applications across presentation, business, and database tiers. Implement Spring- and Hibernate-based solutions, SOAP/REST web services, JMS integration, and Oracle/SQL backend coding. Build reporting with Jasper, write unit tests with JUnit, perform performance tuning, and work with stored procedures. JBPM experience is a plus.

Design and deliver reusable web service interfaces (SOAP/REST) using a model-driven approach. Identify service candidates, document designs, collaborate across teams, support Agile projects, and apply banking/financial domain knowledge to evolve enterprise service models.

Develop and maintain high-performance Java web applications using J2EE stack and NoSQL (Cassandra). Implement caching, optimize performance, write shell scripts on Linux, and apply OO design for scalable enterprise systems.

Convert legacy AS/400 RPG applications to modern J2EE web applications. Design and develop Java/J2EE components using Hibernate and DB2, optimize queries, use CI tools (Subversion, Jenkins, Maven), and implement front-end logic with JavaScript/jQuery. Work with Spring frameworks and collaborate in a team environment, manage time, multitask, and pass a background check.

Onsite senior Java developer responsible for designing, developing, and integrating Java/J2EE applications using EJB, web services (SOAP/REST), Spring/Struts, and SOA patterns. Work includes CI/CD (Maven/Jenkins), application server deployment (WebSphere/WebLogic), database interaction (Oracle/SQL Server/MySQL), QA tooling (Selenium, SoapUI, QTP), and translating requirements into functional and test scenarios within Agile/Waterfall environments.

Senior Java developer to design, develop, and maintain web applications using Java and Spring (MVC). Responsibilities include applying design patterns, configuring Tomcat, using build tools (Ant/Maven/Gradle), writing unit and functional tests (Selenium), managing version control/branching, working with Oracle SQL/PL/SQL and ORMs (iBatis/myBatis, Hibernate), handling Java concurrency, front-end work (JSP/JSTL, HTML/CSS/JS/jQuery), participating in Scrum, code reviews, and collaborating with a team onsite in Phoenix.

Develop and optimize high-performance, multithreaded Java web applications for large-scale enterprise systems. Work with NoSQL (Cassandra), caching (memcache/geneva), shell scripting on Linux, and focus on performance tuning, OO design, and strong algorithms/data structures.

Senior Java/Spark engineer responsible for developing Spark (batch/stream) applications using Java/Scala (Python preferred), building APIs with Spring, scripting in Unix/Bash, writing SQL, and optimizing data formats, performance, and Hadoop integrations.

Hands-on Core Java developer to design and test SOA/services and messaging solutions for banking/investment systems. Write technical stories, read and troubleshoot Java code, test web services (SoapUI/CA-LISA), work with XML/JSON and SQL, use JIRA/Confluence and Agile practices in large, distributed teams.

Develop and optimize Java-based web applications for large-scale enterprise systems. Implement multithreading and event-driven features, caching (memcache/Geneva), PL/SQL integration, deploy on JBoss/Tomcat, perform performance tuning, and use shell scripting on Linux. Emphasizes OO design, scalability, and strong data structures and algorithms skills.

Build and maintain Java/J2EE APIs and distributed, multi-threaded applications. Design using RDBMS/PL/SQL, JSP, JavaScript; deploy on Tomcat. Implement OAuth2/API authentication, use API tooling (Swagger/RAML). Translate business requirements into technical designs, follow SDLC and best engineering practices, and work in a global delivery environment.

Design and implement Hadoop/Java solutions: build MapReduce jobs to ingest and query large HBase datasets, develop REST APIs (JSON) using J2EE/Spring MVC on JBoss, preprocess data with Unix shell scripts, manage Linux distributed systems, and troubleshoot integration with components like ActiveMQ, Pig, and Hive.

Senior Java developer to lead a team and build high-volume, thread-safe enterprise applications in a WebSphere/J2EE environment. Responsibilities include designing and implementing REST/SOAP services, using Spring frameworks, JMS/MQ integration, database work (DB2/MySQL), ORM, testing with JUnit/Mockito/Cucumber, tuning performance, and working in Agile/Scrum.

Develop enterprise J2EE applications using Core Java and Spring. Build RESTful and SOAP APIs, write PL/SQL for Oracle, create unit tests, and work with ElasticSearch (secondary).

Develop and maintain Java/J2EE applications; design microservices architectures; work full-stack (front- or back-end); implement CI/CD with containers; write automated tests (JUnit, Jasmine/Karma/Protractor); use Spring Cloud/Netflix OSS, REST, Zookeeper, and Cloud Foundry; participate in Agile/XP teams and client interactions.

Develop and migrate backend web applications from SQL to NoSQL platforms using Java. Work with NoSQL databases (Couchbase, MongoDB, HBase, Redis, Cassandra), convert data models, optimize performance, and support onsite development in Santa Clara. Requires 5+ years Java experience and ability to clear background check.

Design, develop, prototype and test Java/J2EE server-side applications with multithreading; lead a small development team; coordinate with offshore teams; interface with stakeholders; document work and maintain technical skills and quality standards.

Develop and lead Java-based web applications using J2EE/JSP/HTML5 and frameworks (Struts, Hibernate, jQuery). Work with Cassandra/NoSQL, caching (memcache/Geneva), design scalable OO systems, perform performance tuning, and use shell scripting on Linux. Serve as tech lead for enterprise-scale projects.

Develop and maintain enterprise Java/J2EE applications using EJB, Spring/Struts, JAX-WS/JAX-RS and SOA patterns. Build and deploy on WebSphere/WebLogic, use Maven/Jenkins for CI, collaborate on requirements, create tests (Selenium, SoapUI), and write technical documentation. Work with SQL Server, Oracle, MySQL and integrate with ESB tools.

Design and deliver high-throughput, multi-partition transactional services for a global online store. Architect scalable, reliable distributed systems, work through full project lifecycles, and collaborate with product, design, QA, and cross-functional teams to implement SOA/J2EE-based solutions using XML/JSON, HTTP/HTTPS, Hibernate, Oracle, and NoSQL.

Design and deliver high-throughput, reliable distributed transactional services for a global online store. Architect, implement, and scale multi-partition services, collaborate with product/design/QA, participate in architecture discussions, and drive multi-year technical roadmaps and project life cycles from conception through delivery.

Design, develop, and maintain Java/J2EE applications using Spring, Struts, and Hibernate. Build and consume RESTful web services. Participate in SDLC, design and architecture reviews, project lifecycle activities, and client/stakeholder management. Collaborate in team environments and provide technical and client-facing support.

Develop and maintain Java/J2EE applications using Spring MVC. Build REST APIs to retrieve and import large HBase datasets on Hadoop, design MapReduce jobs, preprocess unstructured data with Unix shell scripting, manage Linux/distributed systems, and troubleshoot integrations (HBase, Pig, Hive, ActiveMQ).

Design and implement full-stack Java solutions; define business processes and architecture; work with cloud platforms (AWS/Azure/VMware), infrastructure orchestration, scripting, configuration management, and big-data technologies; apply machine learning libraries; operate in a consulting environment with regular travel.