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

• Design, develop, and maintain backend services using C#, ASP.NET Core, and Entity Framework.

• Build and manage orchestration and routing layers connecting multiple AI agents and voice platforms.

• Develop, secure, and maintain RESTful APIs for internal and external integrations.

• Integrate third-party conversational AI platforms, voice systems, contact center solutions, and healthcare applications.

• Implement API authentication and authorization mechanisms.

• Work with webhooks, WebSockets, and real-time communication interfaces.

• Design scalable microservices and distributed backend applications.

• Provide technical leadership, mentor developers, and conduct code reviews.

• Collaborate with architects, product owners, QA engineers, DevOps, and business stakeholders.

• Implement unit testing, continuous integration, and coding best practices.

• Troubleshoot production issues and optimize application performance.

• Utilize AI-assisted development tools such as GitHub Copilot and Claude.

Mandatory Qualifications

• College Graduate in Computer Science, Information Technology, Engineering, or a related field.

• Minimum 8+ years of software development experience using .NET technologies, with strong backend development expertise.

• Strong hands-on experience in C#, ASP.NET Core, Web API, and Entity Framework.

• Expertise in REST API development, API integration, and microservices architecture.

• Experience designing orchestration or routing layers to coordinate multiple services or agents.

• Knowledge of RESTful APIs, webhooks, WebSockets, and real-time integrations.

• Strong understanding of OAuth 2.0, JWT, API authentication, and authorization.

• Hands-on experience with Agile/Scrum and AI-Driven Development Lifecycle (AIDLC).

• Familiarity with AI-assisted development tools such as GitHub Copilot and Claude.

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

Good to Have

• Experience with contact center platforms, IVR integrations, call transfers, and live-agent escalations.

• Experience integrating LLMs and AI agent APIs.

• Exposure to Azure OpenAI and Semantic Kernel.

• Experience with Azure Service Bus, Kafka, or other event-driven integration technologies.

• Experience in healthcare technology or healthcare platform integrations.

Application Process

1. Paper Screening

2. Level 1 Interview

3. Client Interview

Important: Minimum 8+ years of relevant .NET backend development experience is non-negotiable. Candidates must be comfortable with a mid-to-night shift and willing to work onsite or hybrid in Eton Centris, Quezon City.