Senior Integration Engineer - Health System EMR & FHIR Interoperability

At Rezilient, we’re redefining primary care by making access to healthcare more convenient, timely, and seamless. Our innovative CloudClinic model combines virtual provider visits with cutting-edge technology to create a personalized digital healthcare experience that puts patients at the center of their care. By streamlining care delivery and continuously expanding specialty services, we empower our care team to focus on patient well-being while providing the most comprehensive and accessible care possible. To support this mission, we’re seeking a highly experienced Senior Integration Engineer to architect and deliver complex EMR integrations across Epic, Cerner, and Athenahealth for our virtual care platform. In this role, you’ll serve as the technical lead driving full lifecycle interoperability, from patient matching and encounter management to discrete clinical data writebacks, while ensuring regulatory compliance and system reliability at scale. This opportunity is ideal for someone who has owned integrations end-to-end and thrives in enterprise health system IT environments, with deep expertise in FHIR and HL7 workflows and the ability to engage stakeholders across both engineering and clinical teams. Requirements Integration Development Lead the architecture and implementation of bi-directional EMR integrations using FHIR R4, HL7 v2, and custom APIs between Athena and Epic/Cerner. Manage patient matching and creation workflows (via MPI, FHIR Patient Search, HL7 A28/A31). Design and implement encounter-aware data exchanges, ensuring documentation and discrete structured data (Observations, Conditions, Medications, etc.) are accurately associated to the correct Epic/Cerner encounters. Develop and maintain middleware or interface engines to support queuing, retries, error handling, and logging. Data & Security Oversee OAuth 2.0 / SMART on FHIR authentication flows within Epic App Orchard and Cerner Ignite. Coordinate data normalization and mapping to clinical vocabularies (SNOMED, LOINC, RxNorm, ICD-10). Ensure interoperability implementations comply with regulatory requirements while maintaining high system reliability and security. Collaboration & Leadership Represent the technical team during health system implementation calls, IT security reviews, and data governance planning. Partner cross-functionally with product managers, clinical informaticists, and client implementation teams to deliver seamless integration projects. Provide mentorship to junior integration staff and help establish standardized integration frameworks across the organization. Key Requirements Experience 7–10+ years in digital health, health IT, or EMR integration roles. 5+ years of direct integration experience with Epic and/or Cerner, including successful end-to-end implementations. Proven track record leading at least one production-grade, bi-directional FHIR integration involving encounters and discrete clinical documentation. Hands-on experience with Athenahealth APIs, FHIR endpoints, CCDs, and HL7 v2 interfaces. Technical Expertise Interoperability standards: FHIR (Patient, Encounter, Observation, Condition, Medication, etc.), HL7 v2 (ADT, ORU, SIU), CCDs. Authentication & security: OAuth 2.0, SMART on FHIR, JWTs. Vendor platforms: Epic App Orchard / Interconnect APIs; Cerner Ignite / HealtheIntent FHIR. Middleware & integration tools: Redox, Mirth Connect, Rhapsody, or custom-built API layers. Cloud & infrastructure: AWS or GCP, containerization, secure API development. Bonus Skills Deep knowledge of clinical vocabularies and data standards (SNOMED CT, LOINC, RxNorm, ICD-10). Familiarity with ONC and CMS interoperability regulations. Experience collaborating directly with health system IT and clinical informatics teams. Soft Skills Clear, adaptable communicator, able to translate complex technical architecture to clinical and non-technical stakeholders. Skilled at navigating enterprise healthcare IT environments, including security reviews, data governance, and multi-stakeholder approval chains. Systems thinker that’s comfortable in fast-paced, scaling startup environments. Education Bachelor’s or Master’s degree in Computer Science, Health Informatics, Biomedical Engineering, or related field (preferred). Benefits This opportunity offers the chance to shape the future of healthcare in a culture where your ideas and contributions have a meaningful impact on the organization's future. You’ll be part of a supportive, collaborative, and diverse team, with competitive compensation and benefits that include generous PTO, paid family leave, comprehensive medical, dental, vision, and life insurance, as well as stock options.