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Slashing Kubernetes Cloud Bills by 45% Without Sacrificing Reliability

Alexandre Vane
Alexandre Vane
Principal Cloud & SRE Engineer
Jul 28, 2026
8 min read
# Slashing Kubernetes Cloud Bills by 45% Cloud spending in Kubernetes clusters often spirals due to over-provisioned CPU and memory requests. Here are 4 engineering practices Innovtec implements for enterprise clients: ## 1. Karpenter for Intelligent Node Provisioning Replace generic Cluster Autoscaler with Karpenter on AWS to launch exact-sized EC2 instances within seconds based on pod resource requirements. ## 2. Spot Instance Mixed Node Groups Utilize spot instances for stateless worker workloads with automated fallback to on-demand instances upon termination notices. ## 3. Horizontal & Vertical Pod Autoscaling Combine HPA (traffic driven) and VPA (historical usage recommendation) to ensure pods scale efficiently without wasting idle memory.