Most enterprises have a machine learning problem that isn't about machine learning. Their data scientists can build models. The problem is getting those models into production reliably, governing them at scale, and meeting regulatory requirements that didn't exist when the ML team was just "experimenting."
AI and ML platform engineering solves this by building the infrastructure, workflows, and governance that turn model experimentation into a production discipline. Here's what that looks like in practice.
The Model-to-Production Gap
Industry data consistently shows that 60-80% of ML models never reach production. The reasons are infrastructure and organizational, not algorithmic:
- No deployment pipeline: Data scientists train models in notebooks. Getting a model from a Jupyter notebook to a production API requires infrastructure that doesn't exist.
- No model registry: Model versions scattered across file systems, S3 buckets, and personal laptops. No single source of truth for which model version is deployed where.
- No monitoring: Models deployed and forgotten. No drift detection, no performance monitoring, no alerting when the model starts making bad predictions.
- No governance: No model cards, no bias testing, no approval workflows, no audit trail. When the AI Act requires documentation for high-risk AI systems, there's nothing to show.
- No reproducibility: "It worked on my machine." Training environments differ from production. Data pipelines aren't versioned. Feature engineering isn't standardized.
ML Platform Architecture
Layer 1: Data Platform
ML models are only as good as their data. The data platform provides:
- Feature store: Centralized repository of curated, versioned features that data scientists can discover and reuse. Feast, Tecton, or cloud-native options.
- Data versioning: DVC or lakehouse architecture (Delta Lake, Apache Iceberg) for reproducible training datasets
- Data quality: Automated data quality checks (Great Expectations, Soda) integrated into data pipelines
- Data governance: Lineage tracking, access control, PII detection, consent management for GDPR compliance
Layer 2: Training Platform
Infrastructure for model training at scale:
- Compute orchestration: Kubernetes-based training with GPU scheduling (NVIDIA GPU Operator), spot instance management, and multi-node distributed training
- Experiment tracking: MLflow, Weights & Biases, or Neptune for tracking experiments, hyperparameters, and results
- Pipeline orchestration: Kubeflow Pipelines, Apache Airflow, or Flyte for reproducible training workflows
- Environment management: Containerized training environments with pinned dependencies for reproducibility
Layer 3: Model Registry and Governance
The control plane for model lifecycle:
- Model registry: Central catalog of all models with versions, metadata, lineage, and deployment status (MLflow Model Registry, Vertex AI Model Registry)
- Model cards: Standardized documentation for each model โ purpose, training data, performance metrics, known limitations, bias assessment
- Approval workflows: Gated promotion from development to staging to production with required approvals
- AI Act compliance: Risk classification, conformity documentation, and technical documentation as required for high-risk AI systems
Layer 4: Serving Infrastructure
Getting models into production reliably:
- Model serving: KServe, Seldon Core, or Triton Inference Server for scalable model serving on Kubernetes
- A/B testing and canary deployment: Progressive rollout of new model versions with automated rollback on performance degradation
- Auto-scaling: Scale inference workloads based on request volume, with cost-aware scheduling
- Edge deployment: For latency-sensitive or data-sovereignty use cases โ model optimization (quantization, distillation) for edge hardware
Layer 5: Monitoring and Observability
Keeping production models healthy:
- Data drift detection: Statistical monitoring of input data distributions against training baselines (Evidently, NannyML, Arize)
- Model performance monitoring: Tracking prediction accuracy, latency, throughput, and business KPIs
- Bias monitoring: Continuous fairness metric tracking across protected groups
- Alerting: Automated alerts when drift exceeds thresholds, performance degrades, or bias metrics shift
- Feedback loops: Capturing ground truth data to evaluate model accuracy and trigger retraining
Kubernetes Recipes
Practical guide for container orchestration and deployment โ hands-on patterns you can use today.
View on Amazon โMLOps Maturity Levels
MLOps Maturity Assessment
- Level 0 โ Manual: Manual training, manual deployment, no versioning, no monitoring. Most organizations start here.
- Level 1 โ Pipeline: Automated training pipelines, model registry, basic CI/CD for model deployment. Models can be retrained without manual intervention.
- Level 2 โ Automated: Automated retraining triggered by data drift, automated testing and validation, automated deployment with approval gates.
- Level 3 โ Governed: Full model governance โ model cards, bias testing, compliance documentation, audit trails, policy-as-code enforcement. Required for EU AI Act compliance.
- Level 4 โ Optimized: Continuous improvement โ automated architecture search, cost optimization, multi-model orchestration, cross-team platform reuse.
Platform Engineering for AI: Build vs. Assemble
You don't build an ML platform from scratch. You assemble it from best-in-class components and add the integration, governance, and developer experience layer:
- Kubernetes as foundation: GPU scheduling, resource isolation, scaling, and ecosystem compatibility
- Open-source core: MLflow, Kubeflow, KServe, Prometheus โ battle-tested components
- Cloud services where they add value: Managed databases, object storage, managed Kubernetes โ let the cloud provider handle undifferentiated heavy lifting
- Custom integration layer: The platform engineering work โ connecting components, building self-service interfaces, implementing governance workflows, integrating with enterprise systems (ITSM, IAM, compliance tools)
Terraform for Beginners
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Start on Udemy โGetting Started
ML platform engineering is a journey. Start with what hurts most:
- If models can't reach production: Start with serving infrastructure and a basic deployment pipeline
- If you can't reproduce results: Start with experiment tracking and data versioning
- If compliance is the blocker: Start with model registry, model cards, and approval workflows
- If models degrade in production: Start with monitoring and drift detection
The goal is a platform that makes it easy for data scientists to get models to production, and easy for the organization to govern what's deployed. Those shouldn't be competing objectives.
Luca Berton
