Job title : Senior .NET Backend Developer – API Integration & AI Engineer

Location: Eton Centris, Quezon Avenue, Quezon City, Philippines
Experience: 8-12 yrs

Job Description :

We are looking for an experienced Senior .NET Backend Developer / API Integration Engineer to lead backend development and integration for a healthcare Conversational AI program.

The ideal candidate will have strong expertise in C#, ASP.NET Core, Web API, Entity Framework, microservices, and RESTful API development. You will be responsible for designing and maintaining backend services and orchestration layers that connect authentication systems, third-party voice platforms, AI agents, and live-agent escalation workflows.

Key Responsibilities :

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

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

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

• Integrate conversational AI platforms, voice solutions, contact center/IVR systems, and healthcare applications.

• Implement API authentication and authorization using OAuth 2.0, JWT, and related security standards.

• Lead and mentor developers, establish coding standards, and conduct code reviews.

• Collaborate with architects on solution design, technical decisions, and project estimates.

• Develop scalable, maintainable, and well-documented backend applications.

• Work closely with Product Owners, QA, DevOps, Architects, and business teams.

• Drive unit testing, continuous integration, troubleshooting, and performance optimization.

Required Skills :

• C#, ASP.NET Core, Web API, and Entity Framework

• .NET Backend Development and API Integration

• RESTful APIs, Webhooks, and Microservices Architecture

• API Security – OAuth 2.0 and JWT

• System Orchestration and Service Integration

Qualifications :

• College graduate.

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

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

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

• Strong experience designing and consuming RESTful APIs, webhooks, and real-time interfaces such as WebSockets.

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

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

• Basic understanding of AI concepts and AI-powered applications.