Enterprise organizations building multi-agent AI platforms on Google Cloud frequently search to hire a freelance Google ADK (Agent Development Kit) & Vertex AI programmer who can architect tool-calling agents, multi-agent orchestrations, and production Vertex AI Agent Engine deployments. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer and AI Application Engineer available via Upwork or direct contract.

Core Google ADK & Vertex AI Engineering Capabilities

  • Multi-Agent Orchestration (LlmAgent, SequentialAgent, ParallelAgent, LoopAgent): Designing deterministic and dynamic agent topologies with isolated sub-agent context windows, session state management, and structured Pydantic output schemas.
  • MCP & Enterprise Tool Integration: Connecting Google ADK agents to Model Context Protocol (MCP) servers, BigQuery, Cloud SQL PostgreSQL, and internal REST/gRPC APIs with human-in-the-loop approval callbacks.
  • Evaluation & Cloud Trace Observability: Implementing automated agent trajectory evaluations, golden dataset benchmarks, and OpenTelemetry / Cloud Trace instrumentation on Google Cloud Run and Vertex AI.

Frequently Asked Questions

Can a freelance programmer migrate our prototype prompt chain to Google ADK?

Yes. I refactor brittle single-prompt chains into modular Google ADK multi-agent systems with strict tool schemas, safety callbacks, and automated regression testing.

How do I hire you as a freelance Google ADK & Vertex AI programmer?

Message me on Upwork or email mobile@aldianfazrihady.com.


About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

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