Senior Java & API Developer

We are seeking an experienced Senior Java & API Developer to support the development, maintenance, and enhancement of electronic data interfaces and CMS government reporting processes. This role is critical to ensure accurate, compliant, and reliable data exchange within an insurance environment.Ready to apply Before you do, make sure to read all the details pertaining to this job in the description below.The ideal candidate will bring strong hands-on experience with Java, SQL, APIs, and CMS encounter data submissions, along with proven ability to support mission‑critical production systems and troubleshoot complex interface issues. Prior experience in the insurance domain is highly desirable. This is a fully onsite position (5 days per week). Key Responsibilities Design, develop, and maintain high‑performance Java applications using Core Java and Spring Boot Build, enhance, and integrate APIs, driving improvements in performance, scalability, and reliability Develop and support standalone Java applications and data interfaces connecting to multiple databases Maintain and enhance automated data interfaces and custom file layouts Support CMS encounter data submission processes to contracted health plans Monitor, reconcile, and validate submitted encounters against response files to ensure timely resolution of errors Create customized reports for internal stakeholders and external clients Troubleshoot and resolve production issues across multiple applications, APIs, and data interfaces Prepare and maintain technical documentation for applications, APIs, and data exchange processes Provide off‑hours production support as required Required Qualifications Extensive experience in Java application and API development, including coding, testing, debugging, documentation, and production support Advanced knowledge of: Java, SQL, XML, JDBC, SFTP Experience with database platforms such as DB2 and MySQL Proficiency in Microsoft Excel, including working with large datasets and standardized reporting Experience working in an AS/400 environment preferred. Ability to support mission‑critical production systems Preferred / Nice to Have Working knowledge of COBOL Exposure to EDI (Electronic Data Interchange) standards and processing Desired Attributes Strong analytical and coding skills Independent, collaborative, and well‑organized Highly Detail‑oriented, accurate, and compliant Clear and effective communicator with a positive team attitude Featured Benefits Competitive salary Vacation and Sick/Personal Time Medical Insurance Hearing Program Discount Short‑ and Long‑Term Disability Insurance Life Insurance Flexible Spending Account 401(k) Employee Referral Program Employee Recognition Programs Tuition Reimbursement Professional Development and Training National Vision Administrators For over 40 years, National Vision Administrators (NVA) has been meeting the vision benefit needs of public employer groups, Health & Welfare Funds, Associations and Coalitions. Providing millions of people throughout the United States with vision care programs that help them be smarter buyers of eye care and eyewear, NVA is particularly well suited to address today's health benefit challenges as it relates to eye care. We offer cost-effective, customized vision benefit programs that are clinically integrated. We are proud of the fact that we have retained over 99% of our clients and believe it is the greatest testimony to the high-quality benefits and service satisfaction we provide to both our clients and their members. Headquartered in Clifton, New Jersey. xywuqvp Website: are an Equal Opportunity employer.