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Alex Ardent Lucero

alex.lu.ce9@proton.me | https://github.com/aex-a

**Junior Site Reliability Engineer - SRE

Cloud Infrastructure - GCP/AWS

RHCSA Linux Administrator**

RHCSA-certified IT professional with a background in high-availability incident response and a focus on Site Reliability Engineering. Dedicated to bridging the gap between proactive observability and automated infrastructure. Currently leveraging OpenTofu, Ansible, and GCP to build secure environments, alongside a deep Linux background to engineer custom automation tools. Recognized with two IT Spotlight Awards for Reliability and Collaboration, I am focused on reducing MTTR and building resilient systems that scale efficiently.

SKILLS

• Linux & Systems Administration: Red Hat - RHEL, openSUSE, Fedora, SELinux, systemd, LVM, LUKS, dnf/zypper
• Infrastructure as Code & Automation: OpenTofu, Terraform - GCS Backend, Ansible, Bash - Proficient, Git, GitHub Actions
• Cloud & Networking: AWS - EC2, ALB, CloudFront, WAF, IAM/SCP, GCP - VPC, Compute Engine, OpenWRT, firewalld, Wireguard, TCP/IP, DNS, Lynis Auditing
• Containerization & Operations: Podman, Python - Environment Management, venv, pipx, API Validation - curl, Incident Response, Root Cause Analysis - RCA, Dynatrace

WORK EXPERIENCE

Allegiant Travel Company NOC Technician II | MARCH 2024 - PRESENT

• Incident Management: Reduced Mean Time To Resolution - MTTR for enterprise-critical outages by independently orchestrating 11+ high-severity bridge calls within a 60-day period, utilizing Jira Service Management to execute blameless Root Cause Analyses - RCAs and drive systemic infrastructure improvements.
• Observability Optimization: Eliminated “eyes-on-glass” operational toil by migrating actionable metrics from proposed static dashboards into targeted Dynatrace alerts, collaborating directly with SRE leadership to debug platform quota constraints by identifying and purging legacy inactive configurations.
• Cloud IAM Troubleshooting: Accelerated cloud access resolution during a physical-to-cloud migration by utilizing the AWS IAM Policy Simulator to isolate permission boundaries, successfully identifying Service Control Policy - SCP blocks and routing precise access requirements for IAM remediation.
• Application Triage & Escalation: Decreased Mean Time To Detection - MTTD for downstream application failures by utilizing browser DevTools to analyze network payloads, isolating 500 Internal Server Errors to backend services and providing the SRE team with exact escalation coordinates.
• IT Spotlight Awards: Recognized twice by enterprise leadership (Sep/Oct 2025) for developing proactive monitoring cadences that mitigated cascading infrastructure failures and for driving operational alert validation.

Palms Casino Resort IT Technician | JUNE 2023 - FEBRUARY 2024

• VDI & Hardware Deployment: Maintained high availability and seamless endpoint deployment across the enterprise by provisioning and managing production Virtual Desktop Infrastructure - VDI environments via VMware Horizon.
• Security Compliance: Secured critical casino network environments by enforcing and auditing strict PCI compliance standards across all managed infrastructure.
• Incident Response: Ensured 24/7 uptime and minimal operational disruption by directing vendor coordination and incident response protocols during high-priority system outages.

INFRASTRUCTURE PORTFOLIO

Cloud Infrastructure Pipeline - ot-trek | github.com/aex-a/ot-trek

• Cloud Architecture: Architected a highly secure, modular cloud infrastructure on GCP, achieving zero-drift configuration deployment and enforcing least-privilege VPC compliance, by developing a robust Infrastructure as Code - IaC pipeline utilizing OpenTofu/Terraform and metadata_startup_scripts.
• CI/CD Integration: Implemented GitHub Actions for automated fmt and validate checks on pull requests to enforce code quality and prevent configuration drift.

Linux Automation & Configuration - tux-utils | github.com/aex-a/tux-utils

• Systems Engineering: Enhanced Linux server network reliability and real-time monitoring capabilities through the deployment of idempotent Ansible playbooks, engineering custom systemd-managed Bash daemons with graceful SIGINT/SIGTERM signal trapping for continuous queue analysis.
• Configuration Management: Successfully decoupled application logic from system variables via /etc/ dynamic configurations using Jinja2 templating.

AWS Edge Routing & Security Topology | Independent Architecture

• Cloud Architecture: Architected and provisioned a secure web topology utilizing AWS Route53 for DNS resolution, routing external traffic through an Application Load Balancer - ALB secured with a custom SSL/TLS certificate.
• Security & Compute: Enforced edge security protocols utilizing AWS Web Application Firewall - WAF and optimized content delivery via CloudFront, managing backend compute resources via EC2 instances.

CERTIFICATIONS & EDUCATION

• Red Hat Certified System Administrator - RHCSA

  ID: 250-187-358 (Active until Dec 2028)

• CompTIA Network+

  ID: ec18901b-3cf0-4c91-8756-7b3aba11af21 (Active until Oct 2027)

• Associate of Arts - 3.71 GPA

  Lake Superior College (Graduated May 2018)