Senior IT Infrastructure Engineer, Cloud & Security Expert

HAMILTON O BIECUNAS

California, ***** United States +1-818-***-**** ***@*****.*** LinkedIn

PROFESSIONAL SUMMARY

Highly accomplished and results-driven Senior IT Infrastructure Engineer with over 20 years of experience in designing, implementing, and optimizing robust, secure, and high-performing hybrid cloud environments. Proven expertise in leading digital transformation, cloud migrations, infrastructure modernization, and strengthening cybersecurity posture. Adept at leveraging AI/ML for proactive monitoring, automation, and threat detection to reduce risks, improve system reliability, and deliver cost-efficient, scalable solutions aligned with business goals.

TECHNICAL SKILLS

Cloud Platforms & Virtualization: Microsoft Azure (Arc, Firewall, Monitor, Sentinel, Key Vault, DevOps), AWS (EC2, IAM, S3, RDS, CloudFormation), Google Cloud Platform (GCP), Microsoft 365 (Exchange Online, SharePoint, Teams), VMware vSphere/ESXi, Hyper-V, Citrix, Azure Active Directory, Azure Site Recovery, Azure Key Vault, Azure Automation

Security & Compliance: Firewalls (Palo Alto, Cisco ASA, Fortinet, SonicWALL), IDS/IPS, SIEM (Splunk, QRadar, Azure Sentinel, Elastic SIEM), Endpoint Protection (CrowdStrike, Defender ATP, SentinelOne), Zero Trust Architecture, MFA/SSO, PKI, NAC, Conditional Access, Penetration Testing, Vulnerability Management (Qualys, Nessus), DLP, Threat Intelligence, AI-driven Threat Detection, NIST, ISO 27001, GDPR, HIPAA, SOX, CIS Controls, SOC 2

Networking & Infrastructure: TCP/IP, DNS, DHCP, VLAN, VPN, SD-WAN, BGP, OSPF, Load Balancing (F5, Citrix Netscaler), Routing & Switching (Cisco, Juniper, Arista), Network Segmentation, VoIP, QoS, Wireless Networking (Aruba, UniFi, Meraki), PoE, LAN/WAN Optimization, Network Monitoring (SolarWinds, PRTG, Nagios, Prometheus, Grafana with ML anomaly detection)

Backup, Recovery & Storage: Veeam Backup & Replication, Commvault, Acronis, Windows Server Backup, SAN, NAS, iSCSI, NetApp, Dell EMC, HPE 3PAR, Immutable Backups, Disaster Recovery Planning (DRP), Business Continuity Planning (BCP), Backup Encryption, Data Archiving Solutions

Automation, DevOps & Scripting: PowerShell, Bash, Python, Ansible, Terraform, Azure CLI, AWS CLI, Git, GitHub, GitLab, Jenkins, CI/CD Pipelines, Infrastructure as Code (IaC), Packer, ARM Templates, YAML Automation, AI Ops

IT Operations & Monitoring: ITIL Framework, Incident & Problem Management, Change Management, Asset & License Management, SCCM, Microsoft Endpoint Manager, SNMP, Syslog, SCOM, ServiceNow, BMC Remedy, Zabbix, PagerDuty, Predictive Analytics & AI Monitoring

PROFESSIONAL EXPERIENCE

EXPATIATE COMMUNICATION Dec 2024 – Apr 2025 Senior System Administrator (Contract)

Led a full-scale cloud migration of 100% on-premises infrastructure to Microsoft Azure, integrating Microsoft 365 and SharePoint Online, improving collaboration efficiency by 25%.

Implemented Microsoft Intune and AI-driven endpoint management across 400+ devices, achieving 100% compliance and proactive security risk identification.

Designed and deployed centralized Veeam Backup & Replication and Azure Site Recovery solutions, reducing Recovery Time Objective (RTO) by 70% and ensuring zero data loss.

Developed PowerShell and Python scripts leveraging AI/ML for automation of server provisioning, patch deployment, and compliance monitoring, reducing manual workloads by 50%.

Integrated Zero Trust Architecture principles, MFA, conditional access, and AI-based threat detection to strengthen security posture.

Deployed AI-enabled monitoring tools to detect anomalous system behavior, predict potential failures, and minimize downtime.

Created detailed IT documentation, SOPs, and disaster recovery runbooks, adhering to NIST and ISO 27001 standards.

Greenwater&Power May 2024 – Oct 2024 Network & Operations Manager (Contract)

Directed end-to-end network operations, optimizing Microsoft 365, SharePoint, and Exchange services to improve document control and workflow efficiency by 30%.

Configured and deployed wireless EV charging stations with secure PoE-based network setups and isolated VLANs, ensuring 99.9% uptime.

Standardized LAN architecture using structured cabling and PoE-only switches, increasing network reliability by 45% and enabling centralized device management for 200+ endpoints.

Implemented AI-based network analytics to detect unusual traffic patterns, anticipate security breaches, and proactively mitigate risks.

Established VLAN segmentation and advanced firewall policies to safeguard sensitive IoT devices, integrating predictive security monitoring.

ANASTASIA BEVERLY HILLS INC. May 2022 – Mar 2024 Network & System Administrator Manager

Led consolidation and optimization of IT infrastructure across three global data centers, improving server utilization and reducing operational costs by 28%, integrating AI-based performance monitoring.

Deployed Veeam Backup & Replication and predictive AI analytics to ensure SLA-compliant recovery for mission-critical systems, achieving 100% backup success.

Reduced system downtime by 30% by resolving 90% of incidents within a four-hour SLA through AI-driven monitoring and predictive issue resolution.

Implemented and maintained cybersecurity measures, combining firewalls, endpoint protection, intrusion detection, and AI-based threat intelligence.

WIRELESS WATCH DOGS Mar 2018 – Feb 2021 Senior Network & System Administrator

Administered enterprise network infrastructure (switches, routers, firewalls, wireless access points), maintaining 99.9% uptime with AI-based monitoring support.

Managed Windows Server and Linux environments, Active Directory, DNS, DHCP, and Group Policy, supporting over 500 users with AI-assisted account provisioning.

Designed secure network architectures and VPN solutions, enhancing remote access performance by 35% through predictive network analysis.

Oversaw server virtualization using VMware vSphere and Hyper-V, optimizing resource utilization and reducing hardware costs by 20%, automating maintenance with AI scripts.

SL POWER Aug 2017 – Mar 2018 Network Administrator & System Administrator (Contract)

Maintained enterprise network infrastructure (switches, routers, firewalls, and VPNs), achieving 99.9% uptime using AI-driven monitoring tools.

Managed Windows Server and Linux-based environments for over 250 employees, including user account creation, group policy management, and access permissions.

Monitored system performance with Nagios and SolarWinds, implementing AI-assisted predictive maintenance to reduce downtime by 25%.

ZIDE & O'BIECUNAS Sep 1998 – Dec 2018 System Administrator

Administered Windows Server and Linux environments, ensuring optimal performance and security for over 150 on-premises and remote workstations with AI-assisted monitoring.

Managed Active Directory, DNS, DHCP, and Group Policy, streamlining account provisioning and reducing access issues by 40%.

Implemented AI-based monitoring and alerting tools to proactively identify system failures and mitigate risks.

Developed and documented IT procedures, policies, and standard operating guidelines to improve team efficiency.

EDUCATION

Bachelor of Science in Information Technology - Woodbury University, California Magna Cum Laude, Honor Society, Delta Mu Delta

CERTIFICATIONS

PMP: Project Management Professional

SAFe 5.1 Certified Agile Practitioner

Azure AZ-900 & AZ-104 Certified

CompTIA Security+

Cisco Certified Network Associate (CCNA)

Network+, A+, MCITP (Windows 7 Support)

Dell Certified Systems Expert (DCSE)

SonicWALL Administrator Certified

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