Open to opportunities

crenz avendaño

@crenzavendao

Message

Senior Systems Administrator and Cloud Engineer delivering secure, high-uptime Azure infrastructure.

Philippines

Message

What I'm looking for

I’m looking for a remote-first role where I can own Azure infrastructure and identity (Entra ID/Conditional Access), automate operations, and maintain 24/7 uptime—while leading incident response and improving security through Zero Trust.

I’m a results-driven Senior Systems Administrator with 5+ years of enterprise IT experience, managing large-scale infrastructure including 3,000+ servers for banking industry clients. I focus on maintaining 24/7 uptime for mission-critical systems, with a strong zero-tolerance approach to downtime.

I specialize in Microsoft Azure and identity capabilities like Active Directory/Entra ID, Microsoft 365, and endpoint security. In multi-tenant environments, I automate operations with Ansible and PowerShell, and I lead incident response under pressure while staying clear with stakeholder communication through tools like Microsoft Teams war rooms.

What sets me apart is speed and measurable impact: I implemented Ansible automation in 2 weeks, reducing manual patching time by 80%, and I coordinated vendor replacement to resolve multiple simultaneous production failures within 4 hours. I’ve also implemented Zero Trust with MFA enforcement, Conditional Access policies, and device compliance management across modern environments.

Experience

Work history, roles, and key accomplishments

Current

Technical Analyst (HRIS)

Current

TransparentBPO

Jul 2025 - Present (11 months)

Managed multi-tenant HRIS client applications across 5 global servers, maintaining 99.9% uptime and accurate data flow. Resolved data inconsistencies and created Jira cases for escalations, reducing resolution time by 30%.

Data Validation Group Logic And Column Mapping

Analyst II - Cloud Engineer

DXC Technology

Jun 2023 - Jul 2025 (2 years 1 month)

Managed and maintained 3,000+ Linux and Windows servers for banking clients, sustaining 24/7 uptime with zero-tolerance for downtime. Implemented Ansible patch automation, reducing manual patching time by 80%, and coordinated resolution of simultaneous production failures within 4 hours.

Linux Administration Windows Server Administration Ansible Automation PowerShell Incident Response Patch Management Security Hardening Change Management Systems Troubleshooting

Technical Support Engineer

Alorica

Feb 2022 - Jun 2023 (1 year 4 months)

Managed Azure Active Directory for user provisioning, MFA enforcement, Conditional Access policies, and security group assignments. Provided Tier 2 support for VPN and account access issues, including MFA troubleshooting and secure account recovery.

Azure Active Directory Conditional Access User Provisioning VPN Troubleshooting Tier 2 Technical Support Account Recovery

SC Engineer / Technical Engineer

Emerald Wireless Technology Inc.

Aug 2021 - Feb 2022 (6 months)

Diagnosed and repaired mobile devices across hardware, network, and software layers, ensuring reliable fixes for customer needs. Managed repair inventory and communicated repair outcomes to maintain strong customer satisfaction.

Network Troubleshooting Inventory Management Customer Support