This list contains only the countries for which job offers have been published in the selected language (e.g., in the French version, only job offers written in French are displayed, and in the English version, only those in English).
We are looking for a Senior Backend Engineer with extensive experience in the healthcare domain to join our application modernization team. This role is focused on re-architecting and migrating a mission-critical legacy enterprise application to a modern .NET ecosystem. You will be responsible for building high-performance, secure, and scalable server-side logic that interfaces with existing SQL databases while adhering to strict healthcare regulatory standards.
Job Responsibility:
Legacy Logic Transformation: Analyze and translate complex business rules from legacy source code into clean, maintainable, and testable .NET services
High-Performance API Development: Design, build, and maintain robust RESTful APIs using .NET 6/8+, ensuring low-latency response times for Angular front-end consumers
Database Engineering: Optimize existing SQL Server structures. You will be responsible for refactoring legacy "record-based" data access into efficient set-based operations using Entity Framework Core and Dapper
Healthcare Compliance: Architect data access layers that strictly enforce HIPAA compliance, including row-level security, data masking, and comprehensive audit logging
Integration & Messaging: Implement asynchronous processing and inter-service communication using message brokers (e.g., Azure Service Bus, RabbitMQ) where applicable
Quality Assurance: Lead the implementation of Test-Driven Development (TDD) practices, ensuring high code coverage via unit and integration tests
Requirements:
7+ years of deep expertise in C# and .NET Core / .NET 5+
Expert-level SQL Server skills (T-SQL, stored procedures, execution plan analysis, and performance tuning)
Advanced experience with Entity Framework Core (including interceptors and performance optimization)
Strong mastery of Web API, Microservices, and Clean Architecture (Onion/Hexagonal)
Solid understanding of IdentityServer, JWT, and OAuth2 implementation
Minimum 5+ years of experience developing Healthcare IT products (EMR, PMS, Billing, or Clinical systems)
Practical experience implementing HIPAA, HITECH, and HL7/FHIR data standards