

Kastech Software Solutions Group
Healthcare Interoperability Engineer - HL7 FHIR / Prior Authorization
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Healthcare Interoperability Engineer - HL7 FHIR / Prior Authorization, a long-term contract position. Requires 5+ years in Healthcare IT, including 3+ years in HL7 FHIR. Remote work location; strong understanding of CMS interoperability mandates needed.
🌎 - Country
United States
💱 - Currency
$ USD
-
💰 - Day rate
Unknown
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🗓️ - Date
July 15, 2026
🕒 - Duration
Unknown
-
🏝️ - Location
Remote
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📄 - Contract
W2 Contractor
-
🔒 - Security
Unknown
-
📍 - Location detailed
United States
-
🧠 - Skills detailed
#FHIR (Fast Healthcare Interoperability Resources) #CMS (Content Management System) #JSON (JavaScript Object Notation) #Deployment #Databases #.Net #API (Application Programming Interface) #Scala #Talend #Documentation #Azure #Python #REST (Representational State Transfer) #Java #Swagger #Microservices #XML (eXtensible Markup Language) #Cloud #REST API #Boomi
Role description
Role: Healthcare Interoperability Engineer - HL7 FHIR / Prior Authorization
Location: United States (Remote)
Duration: Long term Contract
Experience: 5+ years in Healthcare IT, including 3+ years of hands-on HL7 FHIR implementation
Job Summary
We are seeking a Senior Healthcare Interoperability Engineer with strong expertise in HL7 FHIR, CMS interoperability mandates, and Prior Authorization modernization.
The ideal candidate should have hands-on experience implementing CMS-0057-F, HL7 Da Vinci Implementation Guides, and payer-provider interoperability solutions.
This role requires a strong understanding of both the technical implementation and business workflows supporting Prior Authorization in the US healthcare ecosystem.
Key Responsibilities:
• Design and implement healthcare interoperability solutions using HL7 FHIR R4 and RESTful APIs.
• Implement CMS-0057-F Prior Authorization Final Rule and other CMS interoperability requirements.
Implement HL7 Da Vinci Implementation Guides, including:
o CRD (Coverage Requirements Discovery)
o DTR (Documentation Templates and Rules)
o PAS (Prior Authorization Support)
o Experience with PDex, HRex, Plan Net, Formulary, and ATR is highly preferred.
• Design, develop, and support FHIR APIs using core FHIR resources including Patient, Practitioner, Organization, Coverage, Coverage Eligibility, Claim, ClaimResponse, ServiceRequest, Encounter, CarePlan, Observation, Procedure, DiagnosticReport, MedicationRequest, Task, and Communication.
• Integrate payer, provider, authorization, claims, member, and clinical systems using healthcare interoperability standards.
• Implement secure interoperability using SMART on FHIR, OAuth 2.0, OpenID Connect, JWT, and CDS Hooks.
• Collaborate with business, clinical, product, and engineering teams to translate regulatory requirements into scalable technical solutions.
• Participate in solution architecture, API design, testing, deployment, and production support.
Required Skills
• Healthcare & Regulatory
• Strong understanding of the US Healthcare payer and provider ecosystem.
• Hands-on experience with Prior Authorization workflows.
• Knowledge of claims, eligibility, coverage, clinical, and authorization processes.
• Experience implementing CMS interoperability initiatives, including CMS-0057-F.
• Knowledge of Medicare, Medicaid, HIPAA, and healthcare regulations.
HL7 FHIR & Interoperability
• Strong hands-on experience with HL7 FHIR R4.
• Experience developing and consuming RESTful FHIR APIs.
• Strong understanding of FHIR resources, profiles, extensions, validation, search, and Bulk FHIR.
• Experience with SMART on FHIR, OAuth 2.0, OpenID Connect, JWT, and CDS Hooks.
Technical Skills
• Experience with one or more of the following:
• Coding Experience Java/Python/.net
• Good knowledge on REST APIs, JSON / XML, OpenAPI / Swagger, API Gateways, Microservices
• Add on advantage if the person knows databases and Cloud
Preferred Qualifications
• Experience working with US Healthcare Payers or Providers.
• Hands-on implementation of HL7 Da Vinci Prior Authorization solutions.
• Experience integrating X12 278 with FHIR PAS.
• Knowledge of EDI 270/271, 276/277, 837, and 835 transactions.
• Experience with integration platforms such as MuleSoft, Boomi, Talend, or Azure Integration Services.
• HL7 FHIR Certification is a plus.
We are specifically seeking candidates with proven experience implementing CMS interoperability mandates, HL7 Da Vinci Prior Authorization Implementation Guides (CRD, DTR, PAS), and Prior Authorization workflows within the US healthcare ecosystem.
Role: Healthcare Interoperability Engineer - HL7 FHIR / Prior Authorization
Location: United States (Remote)
Duration: Long term Contract
Experience: 5+ years in Healthcare IT, including 3+ years of hands-on HL7 FHIR implementation
Job Summary
We are seeking a Senior Healthcare Interoperability Engineer with strong expertise in HL7 FHIR, CMS interoperability mandates, and Prior Authorization modernization.
The ideal candidate should have hands-on experience implementing CMS-0057-F, HL7 Da Vinci Implementation Guides, and payer-provider interoperability solutions.
This role requires a strong understanding of both the technical implementation and business workflows supporting Prior Authorization in the US healthcare ecosystem.
Key Responsibilities:
• Design and implement healthcare interoperability solutions using HL7 FHIR R4 and RESTful APIs.
• Implement CMS-0057-F Prior Authorization Final Rule and other CMS interoperability requirements.
Implement HL7 Da Vinci Implementation Guides, including:
o CRD (Coverage Requirements Discovery)
o DTR (Documentation Templates and Rules)
o PAS (Prior Authorization Support)
o Experience with PDex, HRex, Plan Net, Formulary, and ATR is highly preferred.
• Design, develop, and support FHIR APIs using core FHIR resources including Patient, Practitioner, Organization, Coverage, Coverage Eligibility, Claim, ClaimResponse, ServiceRequest, Encounter, CarePlan, Observation, Procedure, DiagnosticReport, MedicationRequest, Task, and Communication.
• Integrate payer, provider, authorization, claims, member, and clinical systems using healthcare interoperability standards.
• Implement secure interoperability using SMART on FHIR, OAuth 2.0, OpenID Connect, JWT, and CDS Hooks.
• Collaborate with business, clinical, product, and engineering teams to translate regulatory requirements into scalable technical solutions.
• Participate in solution architecture, API design, testing, deployment, and production support.
Required Skills
• Healthcare & Regulatory
• Strong understanding of the US Healthcare payer and provider ecosystem.
• Hands-on experience with Prior Authorization workflows.
• Knowledge of claims, eligibility, coverage, clinical, and authorization processes.
• Experience implementing CMS interoperability initiatives, including CMS-0057-F.
• Knowledge of Medicare, Medicaid, HIPAA, and healthcare regulations.
HL7 FHIR & Interoperability
• Strong hands-on experience with HL7 FHIR R4.
• Experience developing and consuming RESTful FHIR APIs.
• Strong understanding of FHIR resources, profiles, extensions, validation, search, and Bulk FHIR.
• Experience with SMART on FHIR, OAuth 2.0, OpenID Connect, JWT, and CDS Hooks.
Technical Skills
• Experience with one or more of the following:
• Coding Experience Java/Python/.net
• Good knowledge on REST APIs, JSON / XML, OpenAPI / Swagger, API Gateways, Microservices
• Add on advantage if the person knows databases and Cloud
Preferred Qualifications
• Experience working with US Healthcare Payers or Providers.
• Hands-on implementation of HL7 Da Vinci Prior Authorization solutions.
• Experience integrating X12 278 with FHIR PAS.
• Knowledge of EDI 270/271, 276/277, 837, and 835 transactions.
• Experience with integration platforms such as MuleSoft, Boomi, Talend, or Azure Integration Services.
• HL7 FHIR Certification is a plus.
We are specifically seeking candidates with proven experience implementing CMS interoperability mandates, HL7 Da Vinci Prior Authorization Implementation Guides (CRD, DTR, PAS), and Prior Authorization workflows within the US healthcare ecosystem.






