Sr. Java Developer - Onsite, PA

This position will be onsite 5 days a week. Candidates must be within approximately an hour of central PA, specifically near The Labor and Industry Building (651 Boas Street, Harrisburg, PA). Initial interview process involves a virtual round via Teams, followed by an in-person interview at The Labor and Industry Building in Harrisburg, PA. The ideal candidate should possess strong software engineering skills and a solid background in developing Web Applications. Responsibilities include building SOA web services, leveraging OWSM security, CEP, UDDI, and Oracle Identity Manager (LDAP) frameworks. Tasks involve designing, developing Java / J2EE applications, executing test plans, coordinating, implementing, and deploying software across multiple environments. The role contributes to end-to-end design, development, and delivery activities to implement secure data exchange infrastructure solutions. Extensive experience in building complex enterprise applications using JAVA / J2EE technologies Experience with BPEL orchestration and human task management Proficiency in developing SOAP and RESTful (JAX-RS) Web Services using Spring Web Service Experience with VueJS, NodeJS, and WebSphere Application Server Java programming involving XML using JAXB, SAX, and DOM Familiarity with IDEs such as Eclipse, Jdeveloper, Spring Suite, etc. Understanding of server-side implementation, including distributed deployments, thread management, and garbage collection tuning for performance optimization Strong debugging and troubleshooting skills Experience deploying Java/J2EE solutions on WebLogic and Tomcat Proficiency in JDBC programming with Open JPA and ORM tools like Spring Hibernate, EclipseLink Strong SQL and database programming skills with Oracle Knowledge of SOA principles (loose coupling, reusability, high availability, scalability), SOA design and integration patterns Experience with SOA governance, including design with common patterns, reusable modules, standards-based business objects, and code review for standards compliance Familiarity with emerging SOA technologies and tools XML skills, including schema design/extensions, parsing with XSLT, XPath, XQuery Build/dependency management experience with GIT or Ant Experience with security frameworks for Web services and Java security Participation in strategic system development initiatives Contribution to system and technical design specifications Development and testing of components per specifications Engagement in all project phases and task management to ensure timely delivery Adherence to enterprise architecture principles in design and development Collaborative work with team members and leadership in development activities Preferred Qualifications: Experience with WebLogic and/or other JEE Application Servers Oracle database experience, including PL/SQL stored procedures Operating system expertise in Unix/Linux and Windows Scripting abilities in shell or Perl Knowledge of application architecture patterns such as Enterprise Integration Patterns, Object-Oriented Programming, Aspect-Oriented Programming, Java Design Patterns, SOA architecture Proven enterprise solution design and development skills Deep understanding of the software development lifecycle, including analysis, design, coding, testing, and problem resolution Experience with user interface design and web technologies Understanding of service-oriented development best practices Knowledge of distributed systems Experience working within Agile methodologies (highly preferred) Experience in B2B environments Familiarity with source control systems such as SVN, ClearCase, or VSS Understanding of software configuration management and automated build processes

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