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

Location: Eton Centris, Quezon City

Work Setup: Full onsite or hybrid (subject to confirmation)

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

Experience: Minimum 8+ Years (Non-negotiable)

Job Description

Responsible for designing, developing, and maintaining backend services and API orchestration layers for a healthcare conversational AI program. The role involves integrating voice and AI agents, third-party platforms, and live-agent escalation systems.

Key Responsibilities

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

- Build orchestration and routing layers for multiple voice and AI agents.

- Develop and maintain secure RESTful APIs and integrations.

- Integrate conversational AI, voice platforms, IVR, and healthcare systems.

- Manage API authentication and authorization.

- Lead and mentor engineers, establish coding standards, and conduct code reviews.

- Collaborate with Architects, QA, DevOps, and business teams.

- Perform unit testing, troubleshoot production issues, and optimize performance.

Qualifications & Requirements

- College graduate.

- Minimum 8+ years of .NET software development experience, with strong backend expertise.

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

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

- Strong experience in API development, integration, and microservices.

- Experience designing orchestration or routing layers.

- Knowledge of REST APIs, webhooks, WebSockets, OAuth 2.0, and JWT.

- Experience leading or mentoring development teams.

- Basic understanding of AI tools such as GitHub Copilot and Claude.

Nice to Have

- Contact center or IVR integration experience.

- Experience with LLMs and AI agent APIs, Azure OpenAI, or Semantic Kernel.

- Knowledge of Azure Service Bus, Kafka, or similar technologies.