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 Web Sphere 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 Web Logic and Tomcat
• Proficiency in JDBC programming with Open JPA and ORM tools like Spring Hibernate, Eclipse Link
• 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 Web Logic 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, Clear Case, or VSS
• Understanding of software configuration management and automated build processes