Henryk Dul

Manages the virtual environment and conducts upgrades and configuration changes in VMware vSphere, improving system performance and security. Develops PowerShell scripts to automate reporting, streamline routine tasks, and improve efficiency. Conducts annual data center switchovers, designs failover procedures, and tests disaster recovery plans to ensure business continuity. Leads the planning, execution, and monitoring of Citrix environment migrations and upgrades, ensuring minimal disruption to end users. Optimizes Citrix NetScaler configuration to enhance application performance, improve security, and ensure 99.9% uptime for critical business applications. Oversees multisite SAN environments using NetApp ONTAP and NetApp Active IQ Unified Manager, including disk provisioning, volume management, and firmware upgrades. Collaborates with international IT teams to identify and resolve Kerberos authentication issues across domain trusts. Monitors and troubleshoots Hybrid Azure AD Join implementations, addressing any issues promptly to maintain system integrity and user satisfaction. Configures, deploys, and manages HPE FlexFabric modules to ensure high-performance networking and connectivity within the data center. Manages Cisco MDS switch zoning and fabric operations to ensure efficient and secure communication between storage devices and servers. Administers the Veritas NetBackup environment across multiple sites, ensuring smooth operation and high availability of backup services. Evaluates and recommends new technologies and upgrades to enhance the performance and efficiency of the IT infrastructure. Serves as deputy to the Director of Infrastructure, overseeing team meetings, participating in change control processes, and acting as a key point of contact for other IT teams. Collaborates with vendors to procure IT equipment and software, negotiating contracts to achieve cost savings.

Managed a VMware virtual infrastructure with over 600 servers and implemented a disaster recovery plan using VMware Site Recovery Manager. Led the SAN migration project from Dell Compellent to Pure Storage, significantly boosting storage performance. Deployed software and updates to an environment of over 3,000 workstations using System Center Configuration Manager (SCCM). Spearheaded the onboarding of remote teams, including planning, testing, and active support across different time zones. Managed major server upgrade/expansion projects and led enterprise-wide hardware/software installations. Managed the Active Directory domain and Office 365 environment. Created and executed bulk AD user setups, queries, automation scripts, application packages, and system configuration changes. Troubleshot certificate-related issues, including SSL/TLS certificate errors, to maintain seamless and secure application performance. Oversaw the Citrix environment to provide disaster recovery solutions, remote access, and resolve application compatibility issues. Ensured data protection and compliance with company policies using Veritas NetBackup. Monitored environment health using HP Insight Manager, HPE OneView, and System Center Operations Manager (SCOM). Collaborated closely with audit teams to ensure compliance with regulatory standards and maintained documentation of technologies, standards, and procedures.

Provided second-level support to the Help Desk, resolving user issues with Windows desktops, Microsoft Office, and various industry-specific applications. Executed deployment of updates, service packs, and hotfixes using Windows Update, PDQ Deploy. Managed the creation of user accounts in Active Directory and email accounts in Exchange. Managed the Helpdesk mailbox and Remedy ticketing queue, ensuring timely response and resolution of user inquiries and technical issues. Trained end users on newly implemented software for their workstations.

Provided first-level technical support and troubleshooting for Epicor POS workstations and servers, ensuring timely resolution of user issues. Installed, configured, and maintained desktops, laptops, printers, and peripherals. Managed Active Directory accounts, GPOs, and security settings. Assisted in troubleshooting and resolving issues related to Windows OS and Microsoft Office applications. Documented support activities, solutions, and troubleshooting steps for knowledge base updates.