Senior Infrastructure Operations Engineer

David Rosales

Senior Infrastructure Operations Engineer

Las Vegas, NV 702-***-**** ******.****@*****.*** GitHub: github.com/TheHackersWorkshop U.S. Patent Holder: No. 12,351,126 PROFESSIONAL SUMMARY

Solutions-oriented Senior Infrastructure Operations Engineer with 30+ years of professional experience managing high-availability, multi-site enterprise server environments, virtualized clusters, and secure access control architectures. Expert in bridging legacy systems with modern, automated workflows across mixed Windows and Linux platforms. Proven track record of resolving Tier III escalations by performing deep-dive root cause analysis on physical Dell PowerEdge hardware and enterprise VMware vSphere environments. Specialized in maintaining absolute data confidentiality, system integrity, and robust disaster recovery compliance. CORE COMPETENCIES

• Virtualization & High Availability: VMware ESXi, vCenter, vSphere, vSAN cluster management, Hyper-V, physical-to-virtual (P2V) migrations, and capacity optimization.

• Enterprise Systems Administration: Windows Server (2000–2022), RHEL/Debian Linux, Active Directory domain architecture, Group Policy (GPO), DNS, DHCP, and Storage Area Networking (SAN).

• Automation & Observability: PowerShell automation scripting, advanced Bash tooling, system health telemetry, real-time log analysis, and automated patch management.

• Operations & Risk Management: ITIL frameworks, Change Management processes, disaster recovery verification, root cause analysis, and protecting highly privileged/confidential data.

NOTABLE SYSTEMS INNOVATIONS

• U.S. Patent No. 12,351,126: Conceptualized and engineered a hardware-to-digital secure telemetry tracking system, demonstrating advanced expertise in physical-to-digital interface security and data integrity.

• Enterprise Directory Automation Framework: Developed a professional-grade PowerShell management CLI for advanced Active Directory administration, streamlining bulk configuration changes and access controls.

• Sentinel-Integrity Project: Architected a behavior-driven system monitoring and event logging framework utilizing Python and kernel-level logging to track anomalies and protect sensitive operating environments.

PROFESSIONAL EXPERIENCE

Principal Infrastructure Engineer Reimagined Innovations LLC 03/2022 – 03/2025

• Virtualization & Cluster Management: Administered hybrid Linux/Windows server environments and virtualized high-availability clusters (VMware/Hyper-V) supporting data- intensive enterprise workloads.

• Secure Infrastructure Deployment: Built and managed full-stack, secure web infrastructure featuring robust identity access management, encrypted transaction gateways, and hardened network endpoints.

• Lifecycle & Patch Management: Oversaw routine system patching, performance monitoring, and resource capacity planning to ensure 99.99% uptime across production platforms.

• Data Protection & Confidentiality: Implemented zero-trust data containment and access controls to securely handle proprietary asset telemetry and sensitive user metadata. Senior Systems Architect The Hackers Workshop LLC 07/2020 – 10/2021

• Directory Services Optimization: Designed, deployed, and maintained complex Active Directory domain structures, organizing directory layouts and enforcing strict Group Policies across multi-tenant development environments.

• Incident Resolution & Diagnostics: Developed modular terminal monitoring frameworks and rapid network scanning toolkits to expedite root-cause diagnostic logic for complex Tier III engineering escalations.

• Change Control & Documentation: Authored comprehensive technical blueprints, network topology diagrams, and standard operating procedures (SOPs) to maintain regulatory operational compliance.

Senior Systems Specialist (Confidential Corporate Contract) 04/2009 – 12/2019

• Legacy System Remediation: Successfully salvaged a business-critical application following a major legacy hardware migration; performed deep-dive source file analysis to identify and strip incompatible system calls, restoring full functionality without vendor support.

• High-Availability Operations: Maintained rigorous uptime standards for multi-site enterprise architectures, utilizing custom automation scripts to proactively track system health, minimize latency, and prevent compute bottlenecks.

• Hardware Diagnostic Engineering: Performed board-level diagnostics, component validation, and hardware optimization on critical server components and signal processing gear under high-stakes resource constraints.

EDUCATION & CREDENTIALS

• U.S. Patent Holder: No. 12,351,126 (Data & Telemetry Security Architectures)

• Academic: Object-Oriented Programming, Data Structures, and Java — College of Southern Nevada

• Technical Languages: PowerShell, Python, Bash, Java, C++, XML, JSON, SQL

• Tools & Protocols: Dell PowerEdge, VMware vSphere, Active Directory, vSAN, DNS/DHCP, Git

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