Hasan Butt — Senior MLOps & AI Infrastructure Engineer. I build the infrastructure that cuts cloud costs and prevents downtime across 18+ production systems.

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MLOps & GPU Serving

Freelance client

Self-Hosted LLM Inference on Bare-Metal GPUs

Moved 200 attorneys off $18K/month in API token bills onto self-hosted A100s at 82% lower cost with 420ms p95 latency.

82%Inference Cost Reduction vs. Closed APIs

MLOpsModel DeploymentGenAIObservability & SRE+1

llama.cppvLLMNVIDIA A100CUDA 12.2+9

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Freelance client

EKS at Scale: Karpenter Autoscaling & JVM SRE

Rebuilt cluster autoscaling with Karpenter spot-first provisioning — cut compute spend 70% while keeping 99.98% uptime.

<82sScale-Up Latency (Down from 4.5 Minutes)

AWSKubernetesCI/CDObservability & SRE+1

AWS EKSKubernetesKarpenterHelm+8

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Built at QisstPay (2022–2024)

Hybrid Cloud Infrastructure for a BNPL Fintech

Unified AWS + GCP infrastructure for a fintech handling 1M+ daily transactions across 17 microservices under PCI DSS audit.

1M+Daily Transactions on Infrastructure I Operated

AWSGCPSecurityDatabase+3

AWS ECSGCP Cloud RunTerraformMySQL+10

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AI & RAG Platforms

Freelance client

Multi-Stage Legal RAG with Azure AI Search

Built a 5-layer retrieval pipeline over 3,145 dense legal documents, fixing real failure modes at each step.

0.98Ragas Faithfulness Score (Up from 0.72)

AzureRAGGenAIAI Agents+3

PythonFastAPINext.jsAzure AI Search+8

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FinTech Client Engagement

Payment API Observability & Latency SLOs

Consolidated fragmented metrics into Datadog APM with strict latency SLOs, cutting recovery time from 40+ min to under 9 min.

78%MTTR Reduction (99.99% Peak Availability)

Observability & SREAWSBackend & APIsSecurity+1

DatadogAWS LambdaPythonDocker+4

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