Joseph Gastelo
IT Analyst II | Cybersecurity | Security+ certified | Inspiring Pentester | Cloud Security Focused | M365 Administrator
- Role
- Help Desk Support Specialist at Professional Computer Concepts
- Location
- San Francisco, CA, US
- LinkedIn followers
- 500 followers
About Joseph Gastelo
My ever-evolving skills and Knowledge :| ISO 27001 |Network Security |…
Experience
Help Desk Support Specialist
Professional Computer Concepts
Feb 2024 — Present · US
Spearheaded comprehensive IT support and service delivery in a dynamic Managed Service Provider -MSP environment, demonstrating exceptional career progression with 3 promotions. Managed all facets of IT operations, including security implementation, network administration, and systems management, with a strong focus on Microsoft 365 administration and security awareness training.* Led and streamlined client onboarding processes, encompassing RMM (Remote Monitoring and Management) integration, Meraki network deployments, VoIP solutions, and efficient user provisioning.* Successfully executed complex IT projects, such as large-scale mailbox migrations (250+ mailboxes) and extensive Mobile Device Management (MDM) deployments (150+ devices), ensuring minimal disruption and optimal performance.* Enhanced security posture for clients by implementing and managing Huntress and SentinelOne dashboards to monitor and respond to security threats. Proactively monitored Darkweb ID for potential credential compromises.* Elevated the quality of client service and operational efficiency by creating a comprehensive knowledge base of over 100+ Knowledge Base (KB) articles, empowering both clients and internal teams with self-service solutions and best practices.* Administered Microsoft 365 environments, including user account and password management, Microsoft Teams administration, license management (adding/removing), and configuration of Conditional Access and Single Sign-On (SSO/SAML).* Utilized Microsoft 365 Compliance features, specifically eDiscovery, to support clients navigating litigation processes. Managed Enterprise Applications within the M365 environment.* Designed and executed security awareness training and phishing simulation campaigns using BullPhish. Configured and managed phishing campaigns within Microsoft 365 Defender, including leveraging PowerShell scripts to automate the whitelisting of simulated phishing addresses to prevent interference with testing.
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