Senior Full-Stack AI Agent Architect (ADK/GCP)

Ontrac Solutions LLC.; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

Ontrac Solutions LLC is seeking a Sr. Full Stack Software Engineer specialized in AI agents and multi-agent systems. You will build the agents, backend services, APIs, and web UI, deploying production-grade components on Google Cloud Platform.

Experience with ADK agents and GCP operations is essential, with collaboration across engineers and client stakeholders. The role emphasizes delivering robust, scalable full-stack solutions, integrating Gemini/Vertex AI and Claude-like tools, and

Qualifications

• ADK agent development experience and multi-agent design.
• Frontend development with TypeScript and modern component framework.
• Backend API development with relational database design.
• OAuth 2.0 / OIDC and JWT for authentication/authorization.
• Deployment and operation of apps on Google Cloud Platform (Cloud Run).
• Gemini models on Vertex AI and integration with AI tools.

Responsibilities

• Design the multi-agent architecture and state handling.
• Implement agents and tools with ADK and REST/MCP integrations.
• Build web frontend and backend services exposing agents to users.
• Deploy to GCP Cloud Run/Agent Engine with CI/CD and managed environments.
• Develop evaluation suites and feedback loops for agent quality.
• Instrument tracing/logging for production observability.
• Coordinate with stakeholders to ensure timely delivery.
• Provide code reviews and document architecture and procedures.

Job description

Ontrac Solutions LLC is seeking a Sr. Full Stack Software Engineer specialized in AI agents and multi-agent systems. You will build the agents, backend services, APIs, and web UI, deploying production-grade components on Google Cloud Platform.

Experience with ADK agents and GCP operations is essential, with collaboration across engineers and client stakeholders. The role emphasizes delivering robust, scalable full-stack solutions, integrating Gemini/Vertex AI and Claude-like tools, and