Senior SysAdmin · DevOps · SRE
Esther Gutierrez
Architecting resilient private clouds and mission-critical infrastructure.
20+ years transforming legacy environments into self-healing platforms. I build production-grade systems at scale—orchestrating thousands of workloads and petabytes of storage with obsessive reliability.
Engineering leader
Private cloud · DevOps · SRE
Systems architect with deep Linux roots and a software engineering mindset. Specializes in private cloud, storage, automation, and operational resilience.
Comfortable owning complex migrations, hardening security posture, and building infrastructure that teams trust.
Current focus
MLOps infrastructure, Terraform-driven IaC, and GitOps delivery pipelines.
Impact highlights
Metrics that show scale, reliability, and automation outcomes.
3,000+VPS Migrated
Executed zero-downtime migration from legacy platforms to CloudStack/KVM.
2PB+ Storage
Architected resilient Ceph clusters (20 nodes, ~200 OSDs) for production workloads.
99.9%Backup Success
Eliminated manual toil with automated verification and self-healing workflows.
20+Years Exp
Deep roots in Linux engineering, ISP-scale networking, and security hardening.
Infrastructure expertise, end to end
Cloud, automation, observability, and security disciplines tuned for reliability.
Private Cloud & Virtualization
DevOps & Infrastructure as Code
Storage & Reliability
Linux Engineering
Networking & Security
Development & Scripting
Problem → Solution → Outcome
Deep dives on complex infrastructure challenges delivered in production.
Private Cloud Architecture from Scratch
Designed and built a CloudStack + Ceph + KVM platform to replace legacy virtualization, enabling 3,000+ VPS migration.
Problem
Legacy platforms (Proxmox/Virtuozzo) were unscalable, fragile, and lacked automation, stifling business growth.
Solution
Architected a full-stack private cloud using CloudStack orchestration, KVM hypervisors, and 2PB+ Ceph storage.
Outcome
Delivered a self-healing, high-availability platform that now hosts thousands of production workloads with minimal maintenance.
Zero-Downtime Migration of 3,000+ VPS
Orchestrated the live migration of thousands of virtual servers from legacy platforms to the new private cloud.
Problem
Fragmented legacy systems required high operational toil and were prone to stability issues.
Solution
Developed a phased migration strategy with automated verification, fallback paths, and transparent customer communication.
Outcome
Migrated 3,000+ VPS with zero data loss and negligible service interruption, retiring technical debt.
Automated Disaster Recovery & Backup Reliability
Achieved 99.9% backup success rate by implementing automated verification and self-healing workflows.
Problem
Manual backup checks were time-consuming and prone to human error, leading to 'silent failures'.
Solution
Built a verification-first backup system that test-restores data and auto-tickets any anomalies.
Outcome
Restored engineering confidence in DR capabilities and reduced daily operational toil by ~90%.
Featured homelab and personal projects
Hands-on work that keeps experimentation sharp and production-ready.
Smart Home & IoT Platform
ESP8266/ESP32 automations orchestrated by Home Assistant with custom scripts and Alexa integration.
Energy monitoring, HVAC automation, and reliable voice control.
Local AI Person Detection
Computer vision pipeline for local person detection on security camera feeds.
Context-aware alerts and privacy-preserving automations without cloud dependency.
POS Platform
Web-based POS with CRM, inventory, and invoicing modules.
End-to-end operations tooling for small businesses.
Event Ticketing System
QR ticketing platform with mobile validation app.
Faster entry control with automated ticket validation.
Music & Radio Automation
Commercial radio automation with AI-based music classification and playlist scheduling.
Smarter programming workflows and consistent broadcast automation.
RF Telemetry (APRS)
Off-grid telemetry experiments using APRS for resilient data transfer.
Resilient monitoring and data transfer without internet connectivity.
Ready to build resilient infrastructure?
Let's discuss how I can support your platform, migrations, or DevOps initiatives.