Sr. C#​/.NET Integration Engineer; Apache NiFi​/FHIR API's- Remote

Overview

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's). Remote (MST, CST or EST). 6–12-month Contract or Contract to Hire. Pay Rate: 75–80/hr (150-160k conversion).

A rapidly growing technology-driven organization focused on streamlining how sensitive healthcare records are managed, processed, and shared. They specialize in transforming manual, compliance-heavy workflows into secure, efficient digital solutions—helping clients improve access, accuracy, and operational performance across regulated environments.

This role focuses on building backend interoperability and data integration systems that support the secure, standards-based exchange of healthcare information. You will play a critical role in developing and optimizing pipelines that automate how clinical and patient records are retrieved, transformed, and transferred across electronic health systems. The ideal candidate has strong C#/.NET experience, hands-on integration and ETL expertise, and deep familiarity with HL7/FHIR standards and AWS-based data pipelines in production environments.

• 5+ years of backend software engineering experience using C# and .NET (.NET Core, ASP.NET MVC)
• Strong experience designing and implementing healthcare interoperability solutions using HL7 and FHIR standards
• Hands-on experience building ETL and data integration pipelines using tools such as Apache NiFi, Talend, Informatica, Mule Soft, Apache Camel, or Stream Sets
• Experience designing and supporting data ingestion, transformation, and routing workflows
• Experience building and supporting backend APIs and headless, non-UI data workflows
• Proficiency with AWS services, including:
  • Glue for building and managing ETL pipelines
  • Lambda for event-driven and serverless backend functions
  • S3 for secure object storage
  • RDS for relational data storage and management
  • API Gateway, Event Bridge, and SNS/SQS for integration, messaging, and event-driven workflows
• Experience designing scalable backend services and microservices to support data exchange
• Familiarity with HIPAA, HITECH, and secure healthcare data handling requirements

• Experience working with Apache NiFi v1.27+
• Familiarity with AWS Health Lake or other FHIR-native healthcare data platforms
• Prior experience supporting ROI (Release of Information), records release, or patient data exchange solutions
• Background in microservices, containerized environments, or Kubernetes-based deployments
• AWS certifications or other relevant cloud credentials
• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience

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