HE -Sr. Fullstack Engineer (Node.js / .NET / Azure) - 211

We are seeking a senior Fullstack Engineer to own and enhance the Claims Orchestration Service (Claims API), a core component that drives OCR, validation, decisioning, and routing within Claims AI workflows. This role is critical to delivering reliable, secure, and scalable event-driven processing that improves claims automation and outcomes.

Responsibilities

• Take ownership of and enhance the Claims Orchestration Service (Claims API), understanding how it drives OCR, validation, decisioning, and routing in Claims AI workflows.
• Architect and build distributed, event-based systems using Azure Service Bus and cloud-native patterns.
• Develop and maintain microservices and RESTful APIs across Node.js, Nest.js, C# , .NET Core, and .NET Framework (preferred).
• Implement secure authentication patterns and API gateway integrations.
• Produce and maintain clear API contracts using OpenAPI/Swagger and Kiota.
• Strengthen automated testing and validation pipelines using NUnit, XUnit, Jest, Cucumber.js, BDD, and Gherkin.
• Leverage GitHub Copilot as a required part of daily development for coding, testing, documentation, and productivity.
• Collaborate with engineering leadership as Claims AI components are consolidated under one team.
• Use GitHub, Azure DevOps, Visual Studio, and VS Code (preferred) for development workflows.

Requirements

• Advanced expertise in Node.js and TypeScript is required. 
• Strong hands-on experience with Nest.js is mandatory for this role.
• Experience with Node.js testing frameworks such as Jest, Cucumber.js, Supertest, etc.
• Strong experience with C# , .NET Core, and .NET Framework.
• Hands-on experience with Azure Service Bus and event-driven architecture.
• Proficiency in building REST APIs and distributed systems, including orchestration patterns and event-driven services.
• Experience implementing authentication, authorization, and secure API practices following industry standards (OAuth2, JWT, etc.).
• Experience implementing authentication and secure API practices.
• Proficiency with OpenAPI/Swagger and Kiota for API schema management.
• Automation and testing experience with NUnit, XUnit, Jest, Cucumber.js, BDD, Gherkin.
• Proficient with GitHub, Azure DevOps, Visual Studio, and VS Code.
• GitHub Copilot experience is required.
• Excellent communication skills and ability to collaborate across engineering, product, and data science.

Nice to Have

• Experience in Claims, insurance, AI/ML, or regulated environments.
• Prior involvement in modernizing or consolidating large-scale orchestration systems.