• Managing a fleet of 2,000+ servers (RHEL, CentOS, Fedora, AIX) for one of Mexico’s largest retail companies, fully remote. • HMC (Hardware Management Console) administration for IBM Power Systems, including LPAR management and hardware resource allocation. • Responsible for OS patching, performance monitoring, incident response, and root cause analysis in production environments. • End-to-end change management: RFC ticket creation, maintenance window scheduling, and compliance with change control processes.

• Designed and delivered automations for an environment of 1,000+ servers (Linux and Windows) using Ansible, Jenkins, and Azure DevOps, working in an Agile team with iterative sprint-based delivery. • Eliminated manual server restarts by designing an end-to-end unattended reboot pipeline: automatic detection of servers pending restart, Jira ticketing, and orchestrated execution with full operational safeguards (Zabbix maintenance windows, F5 node draining, vCenter snapshots) — cutting a daily 2–3 hour manual routine covering ~30 servers to a 40-minute unattended run, freeing 10+ engineering hours per week. • Designed a DRP recovery automation that locates cloned VMs in the secondary vCenter and injects the correct network configuration via VMware Guest Operations API — without requiring network connectivity. • Replaced a multi-step, 2-hour manual server decommission process with a single automated workflow — AD removal, Zabbix cleanup, CMDB status update in Jira (Insight), VM deletion, and automatic ticketing to the relevant teams — cutting turnaround to 3 minutes (~97% reduction). • Developed a zombie server detection playbook (IIS logs, Docker activity, disk I/O analysis) that surfaced idle servers for decommission, recovering compute capacity and reducing monitoring and licensing footprint. • Built an automated Zabbix Proxy deployment using Ansible + Jenkins + Docker Compose, cutting full provisioning from a bare-metal server from 2 hours of manual work to a 10-minute unattended pipeline run. • Created a tooling installation playbook for new server onboarding (CrowdStrike, New Relic, Desktop Central), replacing per-tool manual installations. • Automated the vCenter snapshot lifecycle (detection and deletion of ~30 stale snapshots per day, with proactive Axonius alerts), reclaiming 30–90 GB of datastore capacity daily — over 1 TB monthly — and eliminating periodic manual reviews. • Migrated and maintained Azure DevOps pipelines to reusable Ansible roles, covering Windows Failover Cluster, WinRM, IIS, Windows Updates, and F5 node management. • All automation deployments were gated on approved CHR tickets prior to production execution, following strict change management discipline. • Used New Relic, Graylog, Grafana, and Elasticsearch for alert analysis, traffic monitoring, and operational incident support.

• Part of a newly formed Automation team, delivering Shell and Ansible solutions to replace manual operations across the managed services portfolio. • Clients: Banco Santander, Banco Río, Telefónica Argentina, Banco Patagonia, Banco ICBC. • Automated filesystem cleanup, CPU spike detection, swap monitoring and auto-provisioning, log rotation policies, and zombie process termination across multi-account environments. • Deployed Control-M agents for enterprise job scheduling and configured centralized LDAP authentication. [Telefónica] • Automated startup and health validation of WebSphere Application Server, Oracle listeners, IBM HTTP Server, and critical billing applications. [ICBC / Telefónica] • Led a fleet-wide SSH key migration from DSA to RSA across 3,000+ servers in ICBC’s infrastructure, remediating a cryptographic deprecation risk ahead of vendor end-of-support. • Worked in a structured change management and Agile environment, coordinating automation deployments and managing change tickets for each implementation

• Managed Linux (RHEL/CentOS) and AIX production environments within IBM’s enterprise managed services portfolio for 15+ years. • Administered IBM Power Systems via HMC: LPAR creation and management, hardware resource allocation, and firmware-level operations. • Full operational scope: OS installation, upgrades, and patching; LVM and filesystem management; NFS, NTP, and network configuration; user and access management; HA and clustering. • Incident response and root cause analysis on mission-critical production systems in banking and telco sectors. • End-to-end change management: RFC creation, peer review, approval coordination, execution, and post-change validation. • Exposure to IBM Cloud and AWS workloads during the final stage of the role.