ACTIVE) Senior .NET Backend / API Integration Engineer – Conversational AI Orchestration

JOB TITLE: Senior .NET Backend / API Integration Engineer – Conversational AI Orchestration

Work Setup: Pending confirmation. Initially ask candidates if they are amenable to a full onsite or hybrid setup.

Work Shift: Mid to Night Shift, with at least 2 hours of daily overlap with US Central Time (CST)

Relevant Years of Experience: Minimum 8+ years (Non-negotiable)

JOB DESCRIPTION

We're looking for an experienced, self-driven Senior .NET Backend / API Integration Engineer for a healthcare conversational AI program in an Agile / AIDLC working client environment.

You'll lead the design, build, and maintenance of the backend services and orchestration layer that route provider calls between authentication, multiple third-party voice and AI agents, and live-agent escalation.

PRIMARY RESPONSIBILITIES

- Own the technical design of backend services and the orchestration layer using ASP.NET Core, C#, and Entity Framework.

- Build and maintain an orchestration and routing layer that manages several voice and AI agents, including hand-offs within a single call.

- Design, develop, secure, and maintain RESTful APIs for internal and external integrations.

- Integrate with third-party conversational AI and voice platforms, contact center/IVR systems, and enterprise healthcare platforms.

- Develop and support API authentication and authorization.

- Provide technical leadership: guide and mentor engineers, set coding standards, and lead code reviews.

- Work with Architects on solution design, technical decisions, and estimates.

- Write clean, scalable, well-documented code that follows best practices.

- Collaborate with Product Owners, QA Engineers, Architects, DevOps, and contact center business teams.

- Drive unit testing and continuous integration practices.

- Troubleshoot and resolve complex production issues and improve performance.

MUST-HAVE QUALIFICATIONS

- College Graduate.

- 8+ years of software development using .NET technologies, with a strong backend focus.

- Hands-on experience with Agile/Scrum and the AI-Driven Development Lifecycle (AIDLC), using AI-assisted tools in the client's environment.

- Proficiency in C#, ASP.NET Core, Web API, and Entity Framework.

- Strong hands-on experience in API development, API integration, and microservices architecture.

- Proven experience designing orchestration or routing layers that coordinate multiple services or agents.

- Experience designing and consuming RESTful APIs, webhooks, and real-time or streaming interfaces (e.g., WebSockets).

- Knowledge of API security standards, including OAuth 2.0, JWT, authentication, and authorization.

- Experience leading or mentoring development teams and owning technical delivery.

- Basic understanding of AI concepts and AI-powered applications – GitHub Copilot, Claude, etc.

NICE TO HAVE

- Contact center or IVR integration experience (call transfer, caller authentication, live-agent escalation).

- Experience consuming LLM or AI agent APIs and applying guardrails (e.g., Azure OpenAI, Semantic Kernel).

- Event-driven integration using Azure Service Bus, Kafka, or similar.

APPLICATION PROCESS

1. Paper Screening.

2. Level 1 Interview.

3. Client Interview.

PRE-SCREENING QUESTIONS

1. Highest Educational Attainment:

2. Total Years of Working Experience:

3. Years of experience in software development using .NET technologies, with a strong backend focus:

4. Do you have hands-on experience with Agile/Scrum and the AI-Driven Development Lifecycle (AIDLC), using AI-assisted tools in the client's environment?

5. Rate your proficiency in C#, ASP.NET Core, Web API, and Entity Framework, from 1 to 10 (10 being the highest):

6. Last Drawn Salary:

7. How much is your Expected Salary?

8. Are you amenable to working in a full onsite or hybrid setup with a mid-to-night shift schedule?

9. When are you available to start once hired?