← Google Interview Insights

Google·Software Engineer·Onsite - System Design / Architecture·Senior

SeniorPending
Jul 2026

Summary

Made it past the coding round for a Forward Deployed Engineer role at Google and now prepping for the gen AI system design round, specifically the workflow and enterprise track. Posting here because I genuinely have no idea what to expect in terms of format or where the deep dives tend to go.

Questions Asked (1)

Q1

How would you design a gen AI system for enterprise workflow automation use cases?

System DesignTechnical Trade-offsAPI & Integrations
Author's notes

This is the round I'm walking into, not one I've already done, so I can't say how it went.

Create a free account to read the full note

AI HintsAI Generated

Suggested Approach

Start by clarifying the enterprise workflow automation use case and its constraints (e.g., data sensitivity, latency, integration points). Then propose a layered architecture: a foundation model layer, an orchestration layer for workflow logic, and an integration layer with enterprise systems, while discussing trade-offs around accuracy, cost, and security.

Pro tip: Emphasize the importance of human-in-the-loop validation and fallback mechanisms for critical workflows, and discuss how you would measure success (e.g., time saved, error reduction) to show business impact.

1. Clarify Requirements and Constraints

Ask questions to understand the specific workflow, data sources, latency needs, compliance requirements, and success metrics. This ensures the design is tailored and addresses real pain points.

2. Design the High-Level Architecture

Outline a modular architecture with components: model serving (e.g., fine-tuned LLMs), workflow orchestration (e.g., state machines, DAGs), integration APIs (e.g., REST, webhooks), and monitoring. Explain how components interact.

3. Address Key Technical Trade-offs

Discuss choices like model size vs. latency, fine-tuning vs. prompt engineering, on-prem vs. cloud deployment, and synchronous vs. asynchronous processing. Justify decisions based on requirements.

4. Ensure Security, Compliance, and Reliability

Describe measures for data privacy (e.g., encryption, access control), auditability, and error handling (e.g., retries, human-in-the-loop). Highlight enterprise-grade concerns.

5. Define Evaluation and Iteration Plan

Propose metrics (e.g., accuracy, latency, cost per task) and a feedback loop for continuous improvement. Mention A/B testing and monitoring for drift.

Key Points to Mention

  • Choice of foundation models (e.g., Gemini, open-source) and customization via fine-tuning or RAG
  • Workflow orchestration using tools like Apache Airflow, Temporal, or custom state machines
  • Integration with enterprise systems via APIs, webhooks, and message queues
  • Security and compliance: data encryption, access controls, audit logs, and PII handling
  • Human-in-the-loop validation and fallback mechanisms for high-stakes tasks
  • Scalability and cost optimization: caching, batching, and model distillation

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.