GCP & Vertex AI — Crash Course  |  Carrier Round 1  |  2026-05-18  |  AWS TODAY → GCP FUTURE  |  Page 1 of 2: Platform & Services

The JD states "Cloud-based data platforms (AWS today, GCP future)" — GCP fluency signals you are hired for where Carrier is going, not just where it is. TEKsystems lists Google Cloud as a named strategic partner.

1. Mental Model

Google Cloud Platform (GCP) is Google's public cloud. For AI/ML workloads, the central platform is Vertex AI — Google's fully managed ML platform that unifies the entire lifecycle: data prep, training, evaluation, deployment, monitoring, and GenAI. Think of it as GCP's equivalent to AWS SageMaker, but with Gemini (Google's foundation model family) natively integrated.

The key insight for Carrier: The architectural patterns are cloud-agnostic. Every AWS service has a direct GCP counterpart. The migration from AWS to GCP is a service substitution, not an architectural redesign. The data pipeline, feature store, model registry, and monitoring patterns John knows from AWS translate directly — different service names, same architecture.

John's GCP credential: Google Cloud Fundamentals certification. Entry-level but it signals intentional engagement with the platform — not just AWS-only thinking.

Bridge language: "I understand Carrier is on AWS today moving toward GCP. I've led a cloud platform migration before — J&J MedTech, Cloudera on-prem to AWS S3 and Redshift. The architectural patterns are platform-independent. The migration challenge is data pipeline continuity and feature store parity — not re-learning ML fundamentals."

2. Key GCP AI Services

GCP ServiceWhat it isCarrier use case
Vertex AIUnified ML platform: training, evaluation, deployment, monitoring, GenAI — single UI and API surfaceFuture replacement for SageMaker across Carrier's AI/ML fleet
Vertex AI PipelinesKubeflow-based ML pipeline orchestration — DAG of data prep → train → eval → deploy stepsHVAC predictive maintenance retraining pipeline
Vertex AI Feature StoreCentralized feature storage — online (low-latency serving) and offline (batch training)Shared HVAC sensor features across models and BUs
Vertex AI Model MonitoringAutomated drift detection for skew and drift in production model inputs/outputsAlert when HVAC equipment fleet generation shifts sensor distributions
Vertex AI Agent BuilderManaged platform for building RAG apps and agentic AI — grounding, retrieval, tool use. Equivalent to Bedrock Agents + Knowledge Bases.Future "Tell Me More" GenAI agent migration from Bedrock to GCP
GeminiGoogle's foundation model family (Ultra, Pro, Flash, Nano). Available via Vertex AI — equivalent to Claude on Bedrock.Foundation model for Carrier's GenAI applications on GCP
BigQueryServerless data warehouse with lakehouse capabilities — petabyte scale, built-in ML (BigQuery ML), native vector searchFuture destination for Carrier's HVAC sensor data lake and analytics
BigQuery MLRun ML models directly in BigQuery SQL — train, evaluate, predict without moving data out of the warehouseRapid prototyping of fault prediction models on historical HVAC data
Pub/SubManaged real-time messaging — equivalent to Kinesis. Sub-second latency for IoT event streams.Real-time HVAC sensor ingest pipeline on GCP
DataflowFully managed stream and batch data processing (Apache Beam). Equivalent to Glue for ETL at scale.ETL from raw IoT sensor data to BigQuery features

3. AWS → GCP Migration Map (Carrier's Path)

AWS (Today)
  • S3 — object storage
  • Kinesis — streaming ingest
  • AWS Glue — ETL
  • SageMaker — ML platform
  • SageMaker Feature Store
  • SageMaker Pipelines
  • SageMaker Model Monitor
  • Amazon Bedrock — GenAI
  • Redshift — data warehouse
  • CloudWatch — observability
  • IoT Core — device ingest
  • Step Functions — orchestration
GCP (Future)
  • Cloud Storage (GCS)
  • Pub/Sub — streaming ingest
  • Dataflow / Cloud Composer
  • Vertex AI — ML platform
  • Vertex AI Feature Store
  • Vertex AI Pipelines
  • Vertex AI Model Monitoring
  • Vertex AI Agent Builder + Gemini
  • BigQuery — data warehouse/lakehouse
  • Cloud Logging + Monitoring
  • IoT Core / Pub/Sub
  • Cloud Workflows
Migration principle: The architectural pattern is identical on both clouds. Data pipeline: ingest → raw store → ETL → feature store. ML lifecycle: train → registry → serve → monitor. GenAI: docs → vector index → retrieval → agent → guardrails. Carrier's move to GCP is a service substitution within the same architecture, not a redesign.

GCP & Vertex AI — Crash Course  |  Carrier Round 1  |  2026-05-18  |  Page 2 of 2: Architecture, MLOps & Interview Language

4. Vertex AI Architecture Pattern (Carrier's Future Stack)

IoT ingest: Edge devices → Pub/Sub → Cloud Storage (raw) → Dataflow ETL → BigQuery (features) → Vertex AI Feature Store

Traditional ML: Feature Store → Vertex AI Training Job → Model Registry → Vertex AI Endpoints → Model Monitoring → alerts

GenAI: Technical docs → Cloud Storage → Vertex AI Search (vector index) → Agent Builder → Abound API → technician chat

Governance: Vertex AI Explainability + Model Monitoring (drift) + Cloud Audit Logs + IAM + VPC Service Controls

6. Migration Watch-out to Raise Proactively

RAG index rebuild risk: Bedrock Knowledge Bases use S3 and OpenSearch under the hood. Vertex AI Agent Builder uses Cloud Storage and Vertex AI Search. The RAG index rebuild is the highest-risk step in the migration — embedding model parity and retrieval quality need evaluation gates before cutover.

"I'd build the evaluation harness first — BERTScore against ground-truth Q&A pairs on the existing Bedrock Knowledge Base, then run the same eval against the rebuilt Vertex AI Search index. Only promote when retrieval quality is within tolerance."

5. MLOps on Vertex AI vs. John's Equivalents

MLOps CapabilityGCP NativeJohn's Equivalent
Pipeline orchestrationVertex AI Pipelines (Kubeflow)SageMaker Pipelines (Amgen), DeepEval CI/CD (NewsRx)
Model registry & versioningVertex AI Model RegistryMLflow at NewsRx
Feature managementVertex AI Feature StoreSageMaker Feature Store (Amgen)
Production tracingCloud Logging, Cloud TraceLangfuse self-hosted at NewsRx
Drift detectionVertex AI Model MonitoringHHEM + BERTScore trending; SageMaker Model Monitor
GenAI platformAgent Builder + GeminivLLM + Qwen3 (self-hosted); Bedrock (managed equivalent)
Data warehouseBigQueryRedshift (J&J MedTech), cross-client Snowflake
Streaming ETLPub/Sub + DataflowKinesis + Glue (AWS); GeoSpatial Metrics UAV telemetry
Evaluation gatesVertex AI Model EvaluationDeepEval + HHEM + BERTScore CI/CD gates (NewsRx)
Canary / A-B deploymentVertex AI Endpoints (traffic split)Staged facility-by-facility rollout (Invistics)

7. Interview Language

"The JD says AWS today, GCP future — I read that as this role is part of the architectural transition. I've led a cloud platform migration before at J&J MedTech, Cloudera on-prem to AWS. The patterns are platform-independent. SageMaker Pipelines and Vertex AI Pipelines solve the same problem — I'd ramp on Vertex AI specifics while contributing immediately on architecture design."
"BigQuery is the strategic differentiator in the GCP stack for Carrier. It's not just a warehouse — it's the analytics foundation that feeds Vertex AI features. BigQuery ML means you can prototype models directly on sensor data before investing in full Vertex AI training pipelines. That's the fast POC path Carrier needs for new use cases."
"Vertex AI Agent Builder is GCP's equivalent of what I built self-hosted at NewsRx and what Carrier runs today on Bedrock — RAG with retrieval grounding, tool use for API calls, guardrails at inference. The architectural decision is the same; the managed service is different."
"I have Google Cloud Fundamentals certification — entry level, but it means I've deliberately mapped the GCP service catalog. I'm not approaching this as an AWS person who has to learn GCP; I've been tracking both platforms. The migration is a substitution exercise within a known architecture."

TEKsystems Signal

TEKsystems' email footer lists Google Cloud as a named strategic partner alongside AWS, Microsoft, Red Hat, Tableau, and Snowflake. This is not a speculative future — TEKsystems is actively positioning Carrier's GCP migration as part of this engagement. The person hired for this role will be expected to architect the transition.