Miguel Ángel Virto Estrada

About me...

I am Miguel Ángel Virto Estrada, an IT professional with over 20 years of experience in the IT field. I have worked as a Senior Infrastructure Engineer, building and managing complex IT environments. Throughout my career, I have gained expertise in a wide range of technologies, including UNIX/Linux operating systems, cloud computing platforms, containerized architectures, networking, and databases. Currently, I am focused on developing infrastructure solutions for blockchain-based projects, by leveraging containerization, automation, and DevOps/SRE practices to deliver scalable and efficient systems.

Technical Skills

  • Linux (RHEL, Debian, Ubuntu)
  • UNIX (HP-UX, AIX)
  • RedHat Cluster
  • Service Guard
  • GPFS/GFS/GlusterFS
  • VMware ESX
  • Kubernetes
  • AWS EKS
  • Docker
  • CNI (Cilium, Calico, Weavenet)
  • CSI (Astra Trident)
  • Service Mesh (Istio, Linkerd)
  • Nvidia Container Toolkit
  • Container Registries (Harbor, Nexus, ECR)
  • Admission Controllers (Kyverno)
  • KEDA
  • K8s Security (RBAC, Kube-bench, Trivy)
  • Ansible
  • Terraform
  • ArgoCD
  • Gitlab
  • Vault
  • Kustomize
  • ELK
  • Prometheus/Grafana
  • Shell Scripting
  • Python
  • Golang
  • Git
  • ETCD
  • DynamoDB
  • PostgreSQL


Education, Languages & Certifications

Education

2001-2003 D.A.I Desarrollo de Aplicaciones Informáticas

Centro de Estudios Superiores AFUERA (Madrid, Spain)


Languages

🇪🇸 Spanish - Native speaker

🇬🇧 English – Intermediate level


Certifications

CKA CKA Certified Kubernetes Administrator. Public Link to Certification

CKS CKS Certified Kubernetes Security Specialist. Public Link to Certification

Arch AWS Certified Solutions Architect - Associate. Public Link to Certification

SysOps AWS Certified SysOps Administrator - Associate. Public Link to Certification

SysOps AWS Certified Developer - Associate. Public Link to Certification


Professional Experience

Minsait - May 2021 - At Present
Senior Infrastructure Engineer - Kubernetes Administrator

Technical Skills: Kubernetes / Docker / Ansible / AWS / EKS / RHEL / Calico / Cilium / ArgoCD / Kustomize / Nvidia Container Toolkit / Nvidia MIG / NetApp Trident / Kyverno / KEDA / Harbor / Vault / Prometheus / Grafana / Gitlab / ELK

  • Design, implementation, configuration, and support of Kubernetes clusters on-premises and on AWS Cloud
  • Analysis and implementation of security standards for Kubernetes clusters
  • Implementation, configuration, and support of monitoring systems for Kubernetes clusters
  • Migration of Kubernetes clusters from version 1.15 to version 1.21 in on-premises environments
  • Deployment of a Kubernetes architecture with Nvidia GPUs for AI development environments
  • Design, implementation, configuration, and support of Ansible-based infrastructure for Kubernetes deployments
  • Implementation and support of container-based infrastructures
  • Documentation of procedures, architectures, and implementations

Gerencia de Informática de la Seguridad Social - Mar 2021 - Apr 2021
Senior Linux Systems Administrator

Technical Skills: Red Hat Linux / Shellscript / Ansible / Red Hat Satellite / Vmware / Kubernetes / Docker / GPFS

  • Administration and support of Linux systems (RHEL 7/8) and VMware (ESX 6.5)
  • Administration and support of Docker and Kubernetes-based infrastructures
  • Automation of administrative tasks and procedures using Ansible and Shell scripting
  • Documentation of procedures

Freelance - Mar 2020 - Mar 2021
Cloud SysOps

Technical Skills: Debian Linux / Shellscript / Ansible / AWS / Terraform / Apache / Python / NextCloud / Docker / Git

  • Design and deployment of architectures in Public Cloud (AWS) and Private Cloud (Nextcloud)
  • Deployment of applications on Debian Linux within AWS infrastructure (EC2, VPC, S3, EBS, ELB, ASG, IAM)
  • Creation of Terraform modules (v0.12) for infrastructure deployment on AWS

Prosegur - Jun 2018 - Mar 2020
Senior Linux/Unix System Administrator

Technical Skills: Red Hat Linux / HP-UX / Kubernetes / Prometheus / Grafana / Shellscript / Ansible / Foreman-Katello / Squid / DNS / Postfix / GlusterFS / Pure Storage / Git

  • Administration and support of Linux systems (RHEL 5, 6, 7) and UNIX systems (HP-UX 11.31)
  • Level 2 incident resolution
  • Automation of administrative tasks and procedures using Ansible and Shell scripting
  • Migration of IT systems to new infrastructure
  • Deployment and administration of Kubernetes platform

IBM - Jan 2014 - Jun 2018
Senior Linux/VMware System Administrator

Technical Skills: Red Hat Linux/ Red Hat Cluster / GFS / VMware / Shellscript / GPFS

  • Operational lead for the Linux systems group
  • Deployment, administration, and support of Linux systems (RHEL 4, 5, 6, 7) and VMware (ESX 4.1, 5, 6)
  • Level 2 incident resolution and scheduled maintenance tasks
  • Automation of routine administrative tasks using Shell scripting
  • Documentation of procedures for operations
  • Performance and capacity reports for Linux/VMware systems
  • System upgrades and technology refresh

IBM - Jan 2009 - Dec 2013
Linux/VMware System Administrator

Technical Skills: Red Hat Linux/ Red Hat Cluster / GFS / VMware / Shellscript / GPFS

  • Deployment, administration, and support of Linux systems (RHEL 4, 5, 6, 7) and VMware (ESX 3.5, 4.1)
  • Incident resolution and scheduled maintenance tasks
  • Automation of routine administrative tasks using Shell scripting
  • System upgrades and technology refresh

IBM - Jul 2006 - Ene 2009
UNIX System Administrator

Technical Skills: AIX / HP-UX / Solaris / Shellscript / HACMP / GPFS / ServiceGuard

  • Administration, and support of UNIX systems (AIX, HP-UX, Solaris)
  • Migration of legacy infrastructure from TRU64 to AIX environments

Amena - Jul 2005 - Jul 2006
Data Center Operations Shift Lead

Technical Skills: UNIX / Windows / Shellscript / HP Openview / Legato / Control-M

  • Shift management in the Amena's Data Center

Amena - Nov 2003 - Jul 2005
Data Center Operations Technician

Technical Skills: UNIX / Windows / Shellscript / HP Openview / Legato / Control-M

  • Incident management and system monitoring of Amena's Data Center

E Systemas - Abr 2003 - Jun 2003
Intern (Trainee)

Technical Skills: Linux / HTML / PHP / Mysql

  • Development of a small web application using PHP