Senior Java Developer Jobs in Harrisburg, PA (NOW HIRING)

About Apexon:
Apexon is a digital-first technology services firm specializing in accelerating business transformation and delivering human-centric digital experiences. We have been meeting customers wherever they are in the digital lifecycle and helping them outperform their competition through speed and innovation.
Apexon brings together distinct core competencies in AI, analytics, app development, cloud, commerce, CX, data, DevOps, IoT, mobile, quality engineering, and UX, along with deep expertise in BFSI, healthcare, and life sciences, helping businesses capitalize on the unlimited opportunities digital offers.
Our reputation is built on a comprehensive suite of engineering services, a dedication to solving clients' toughest technology problems, and a commitment to continuous improvement. Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon has a global presence across four continents.
We enable #HumanFirstDIGITAL
We are hiring for a Senior Java Developer (IES Experience) opportunity.
Role: Senior Java Developer
Location: Mechanicsburg, PA
Position: 55
Role Overview:
We are seeking experienced Senior Java Developers to support the development and enhancement of enterprise web applications for a large-scale Integrated Eligibility System (IES) project. The ideal candidate will have strong experience in Java and J2EE development, object-oriented design, relational databases, and enterprise application development. This role requires hands-on coding, complex SQL development, root cause analysis, and collaboration with cross-functional teams in an enterprise environment.
Key Responsibilities:
• Develop, enhance, and maintain enterprise Java web applications
• Write efficient, complex SQL queries for data retrieval and analysis
• Perform root cause analysis and resolve application defects and production issues
• Design and implement scalable application components following object-oriented design principles
• Develop batch processing jobs and web services to support business operations
• Collaborate with architects, business analysts, QA teams, and fellow developers throughout the software development lifecycle
• Participate in code reviews and ensure adherence to coding standards and best practices
• Support application deployment, maintenance, and performance optimization
• Create technical documentation and provide implementation support when required
Required Skills:
• 3+ years of experience in Java 6.0 and J2EE application development
• Strong experience with JSP, Custom Tag Libraries, JavaScript, Session EJBs, and JDBC
• Experience using Java IDEs such as IBM Rational Application Developer (RAD) 7.5 or later
• Strong understanding of Object-Oriented Analysis and Design (OOAD)
• Experience implementing Singleton, Factory, and DAO design patterns
• Solid understanding of MVC architecture
• Experience developing batch jobs and web services
• Experience with IBM WebSphere Application Server 8.0
• Strong experience writing SQL queries using DB2 and Oracle databases
• Excellent analytical, troubleshooting, and problem-solving skills
Preferred Skills:
• Experience working on Integrated Eligibility Systems (IES) projects
• Experience with WebSphere Application Server running on SUSE Linux 11 in VMware environments
• Experience supporting large-scale government or public sector applications
• Familiarity with enterprise application performance tuning and optimization
• Strong communication and collaboration skills
• Experience working in Agile development environments
Education Requirement:
Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field preferred.
Our Commitment to Diversity & Inclusion:
Did you know that Apexon has been Certified™ by Great Place To Work® in multiple global regions? Apexon is committed to being an equal opportunity employer and promoting diversity in the workplace. We take affirmative action to ensure equal employment opportunity for all qualified individuals. Apexon strictly prohibits discrimination and harassment of any kind and provides equal employment opportunities to employees and applicants without regard to gender, race, color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other characteristic protected by law.
Our Commitment to Environment:
Actively contribute to Apexon's commitment to environmental responsibility by following sustainable practices and supporting ESG initiatives.
Our Perks and Benefits:
Our benefits and rewards program has been thoughtfully designed to recognize your skills and contributions, elevate your learning experience, and provide care and support for you and your loved ones.
We also offer:
• Health Insurance with Dental & Vision
• 401K Plan
• Life Insurance, STD & LTD
• Paid Vacations & Holidays
• Continuous Skill Based Development and Career Advancement Opportunities