Job title : Senior .NET Backend / API Integration Engineer

Location: Eton Centris, Quezon Avenue, Manila
Experience: Minimum 8 - 12yrs

Job Description :

We are looking for an experienced Senior .NET Backend / API Integration Engineer to lead backend development and orchestration for a healthcare conversational AI program. The role involves building scalable APIs, integrating third-party AI and voice platforms, and managing backend services.

Key Responsibilities :

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

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

• Develop and secure RESTful APIs, webhooks and real-time integrations.

• Integrate conversational AI, contact center, IVR and healthcare platforms.

• Implement authentication and authorization using OAuth 2.0 and JWT.

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

• Collaborate with architects, QA, DevOps and product teams.

• Drive unit testing, CI practices and production issue resolution.

• Improve application performance, scalability and reliability.

Required Skills : 

• 8+ years of .NET backend development experience.

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

• API development, integration and microservices architecture.

• Experience designing orchestration or routing layers.

• REST APIs, webhooks, WebSockets and real-time interfaces.

• OAuth 2.0, JWT and API security.

• Agile/Scrum and AI-assisted development tools such as GitHub Copilot or Claude.

• Technical leadership and mentoring experience.

Qualifications :

• College graduate.

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

• Hands-on experience with Agile/Scrum and AI-assisted development workflows.

• Proven experience leading or mentoring development teams.