John Bacor

Experienced System Administrator with 9+ years of expertise in enterprise IT infrastructure, Active Directory management, virtualization, cloud services, and network security. Skilled in maintaining secure, reliable IT systems, performing system migrations, and providing end-user support. Proven ability to optimize IT operations and support mission-critical environments.

System Administrator at AGCO 365 Solutions (2022-03 – 2026-01)

Administered enterprise IT infrastructure with focus on Active Directory management, network security, and system maintenance.

• Administered Active Directory (AD), including user lifecycle management, RBAC, and Group Policy (GPO) enforcement.
• Implemented network security controls, including firewall configurations, endpoint protection, and security policy enforcement.
• Performed patch management, system updates, and backup administration, ensuring high availability and disaster recovery readiness.
• Configured and supported secure VPN solutions for remote access.
• Delivered Tier 1–2 technical support, resolving hardware, software, and network issues within SLA targets.
• Developed and maintained technical documentation (SOPs, system configurations, network diagrams).

System Administrator at United Graphics Expression Corp. (2019-09 – 2022-02)

Managed Active Directory infrastructure, endpoint security, backup systems, firewall configuration, and email server administration.

• Managed Active Directory infrastructure, including Domain Services, GPOs, and identity/access management.
• Administered Symantec Endpoint Protection Manager (SEPM) for endpoint security and threat mitigation.
• Managed Veritas Backup Exec, implementing backup automation and disaster recovery strategies.
• Configured and maintained WatchGuard Firebox firewall, including VPN access and traffic monitoring.
• Administered IceWarp Email Server, including user provisioning, mail flow, and system monitoring.
• Performed patch management, system updates, and backup administration, ensuring high availability and disaster recovery readiness.
• Configured and supported secure VPN solutions for remote access.
• Delivered Tier 1–2 technical support, resolving hardware, software, and network issues within SLA targets.
• Developed and maintained technical documentation (SOPs, system configurations, network diagrams).

System Engineer at Trends & Technologies (2016-11 – 2019-07)

Managed Active Directory environments, virtualization infrastructure, cloud migration projects, and security implementations.

• Managed Active Directory environments, enforcing GPOs and access control policies.
• Administered VMware ESXi and Microsoft Hyper-V, improving virtualization performance and uptime.
• Led Exchange to Microsoft 365 migration, ensuring minimal downtime and seamless transition.
• Managed Azure Active Directory (Azure AD) for hybrid identity and cloud integration.
• Conducted vulnerability assessments and implemented BitLocker encryption.
• Performed Active Directory migrations using ADMT with minimal service disruption.
• Deployed and configured Microsoft 365 tenants across multiple client environments.

System Administrator at Gentrimedical Center & Hospital (2015-11 – 2016-06)

Supported healthcare IT infrastructure with focus on system migrations, technical support, and patch management.

• Assisted in healthcare system migrations and infrastructure upgrades.
• Provided Tier 1–2 technical support for hardware, software, and network issues.
• Performed Windows OS testing and validation prior to enterprise deployment.
• Deployed patches and applications using SCCM.
• Supported Active Directory and SCCM infrastructure, including user and device management.