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Cyperus Group LLC

C# .Net Developer

Cyperus Group LLC, Boston

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Base pay range

$70.00/hr - $80.00/hr

Overview

We are seeking an experienced and motivated Senior Cloud Engineer to join our team and play a pivotal role in a mission-critical project. You will be a key developer in building the next generation of our healthcare data platform to achieve compliance with new federal interoperability regulations (CMS-0057-F). You will design, develop, and deploy the central security and orchestration hub of our new architecture, a Proxy FHIR Service, as well as a suite of critical, asynchronous background jobs that power our data exchange capabilities. This is a unique opportunity to work with modern cloud technologies on a project that will directly impact how patient data is shared and managed across the healthcare ecosystem.

Key healthcare items

  • FHIR - Fast HealthCare Interoperability Resources
  • The Centers for Medicare & Medicaid Services (CMS)

What You\'ll Do

  • Develop the Core Proxy Service: build and own the central Proxy FHIR Service, a C# serverless function that acts as the secure gateway for all interoperability APIs.
  • Implement Robust Security: engineer the security core of the service, validating external Okta JWTs, enforcing OAuth 2.0 scope-based authorization, and managing a secure internal token exchange to protect backend systems.
  • Build Complex Workflows: design and implement intelligent routing logic to handle the multi-stage workflows required by the Prior Authorization API, differentiating between CRD, DTR, and PAS requests.
  • Engineer Resilient Background Jobs: develop robust, scheduled, and event-driven background processes, including:
  • A job to synchronize member consent choices (opt-in/opt-out) from Salesforce to a central repository.
  • A long-running job to orchestrate the Payer-to-Payer data consumption process, which includes calling external APIs, parsing FHIR bundles, and transforming data for our claims system.
  • A job to establish provider-patient attribution by processing historical claims data.
  • Ensure Data Conformance and Quality: work with data teams to ensure all processes align with the HL7 FHIR US Core Implementation Guide (v7.0.0) standards mandated by the project.
  • Collaborate and Innovate: work with solution architects, business analysts, and QA engineers to translate functional requirements into scalable, production-ready code.

Required Skills & Experience

  • 5+ years of professional software development experience in C# and the .NET Framework.
  • Strong, hands-on experience building solutions on major cloud platforms (Azure, AWS, or similar), particularly with serverless computing technologies (e.g., Azure Functions, AWS Lambda).
  • Deep understanding of RESTful API design, security principles, and standards like OAuth 2.0 and JWT.
  • Proven ability to design and build reliable, scalable, and maintainable backend services and asynchronous processes.
  • Experience reading and interpreting detailed technical specifications and functional requirements documents.

Preferred Qualifications (Bonus Points)

  • Experience in the healthcare technology domain, especially with interoperability standards like HL7 FHIR.
  • Familiarity with the Da Vinci Implementation Guides (CRD, DTR, PAS) for prior authorization is a significant plus.
  • Practical experience integrating applications with identity providers like Okta.
  • Experience working with data from Salesforce, particularly via its APIs.
  • Knowledge of cloud API Gateway technologies and patterns for securing and managing API traffic at scale.
  • Experience with cloud-native healthcare data solutions (e.g., AWS Health Lake, Azure Health Data Services).

Seniority level

Mid-Senior level

Employment type

Contract

Job function

Health Care Provider and Information Technology

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