Senior Full Stack Developer- Remote United States

The Senior Full-Stack Developer will have deep experience in FHIR-based interoperability to support the delivery of large-scale healthcare data exchange solutions supporting CMS mandates such as Patient Access, Provider Access, and Prior Authorization.

This role is responsible for writing production-grade code, leading technical delivery, mentoring developers, and collaborating closely with Project Managers, Solution Architects, and Technical Account Managers to ensure that every deployment meets both performance and compliance standards.

• Develop backend services, adapters, and integrations using Java, Spring Boot, and Apache Camel for CMS mandates (Patient Access, Provider Access, P2P, Prior Auth).
• Deliver FHIR R4+/SMART on FHIR APIs aligned with US Core and applicable Implementation Guides, ensuring full terminology compliance (LOINC, SNOMED CT, RxNorm, ValueSets).
• Participate in customer meetings, office hours, demos, and escalations; explain technical concepts clearly and professionally.
• Code & Test Excellence – Write clean, maintainable code with strong unit/integration testing (JUnit, Testcontainers, MockMVC) and participate in detailed peer reviews.
• Automate & Deploy – Build CI/CD pipelines in GitLab, manage Helm deployments on Kubernetes, and troubleshoot services, pods, and performance issues.
• Integrate & Scale – Work with Kafka or equivalent messaging queues and relational databases (PostgreSQL/MS SQL) to deliver scalable, event-driven data pipelines.
• Mentor & Lead – Review code, guide junior developers, and promote best practices in design, automation, and maintainability.
• Accountable for ensuring that all working hours are accurately reported in the time tracking system on a daily or weekly basis, that the majority of (if not all) hours are tracked as billable and that the integrated project management tool is properly and fully utilized. 
• Tracking and reporting of billable hours is a critical aspect of project management and delivery to our customers and this is a major area of accountability.

• 8+ years software development experience, including 5+ years in Java/Spring Boot.
• Proven delivery of FHIR/SMART on FHIR integrations in production environments.
• Strong knowledge of US Core, FHIR IGs, and healthcare terminologies (LOINC, SNOMED CT, RxNorm, ValueSets).
• Prior experience in professional services or healthcare delivery teams.
• Hands-on with GitLab CI/CD, Kubernetes/Helm, Kafka, and relational databases (PostgreSQL/MS SQL).
• Excellent verbal and written communication and ability to work directly with customers.
• Highly organized, accountable, and capable of managing multiple concurrent priorities.

• Experience with Smile CDR or HAPI FHIR.
• Exposure to HL7 v2, CDA, or legacy FHIR integrations.
• Familiarity with CMS interoperability mandates (Patient Access, P2P, Provider Access, PA).
• Experience authoring FHIR Implementation Guides or using Inferno for testing.
• Familiarity with AWS/Azure cloud environments and infrastructure-as-code (Terraform).