John Zakhary
El Cajon,CA
Summary
Results-driven IT professional with a comprehensive background spanning help desk support to Senior Systems Administration. Takes initiative to build and secure IT environments independently, mastering complex systems like Microsoft Intune and Defender. Proactive efforts have saved organization over $30,000 through in-house implementations, boosted security posture from 46 to 69 Secure Score, and reduced phishing threats through direct user training and platform deployment (Knowbe4). Expertise in endpoint security, network controls (Meraki), and hands-on vulnerability research. Security+ certified and expanding expertise to transition into a specialized cybersecurity role.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Senior System Administrator
Pegasus Building Services
05.2025 - Current
- Implementing security policies that resulted in reducing the phishing attacks attempts dramatically.
- Enforcing different security policies using Endpoint Security by Intune, creating a security baseline for company devices.
- Managing and securing corporate mobile devices using IBM MaaS360 MDM.
- Conducting security awareness trainings to company employees, to widen their cyber awareness against emerging threats.
Systems Administrator
Pegasus Building Services
03.2024 - 04.2025
- Recommended a ticketing system for the organization, migrating the tickets from emails to Freshservice. Was able to master it within a remarkably short period.
- Migrated the company's devices from unmanaged to fully-managed environment using Microsoft Intune.
- Resolved escalated help desk tickets promptly, providing high-quality support to end users experiencing technical issues.
- Assisted in the onboarding process of new employees by setting up workstations, provisioning accounts, and providing initial IT training as necessary.
Technical Specialist
Pegasus Building Services
03.2023 - 05.2024
- Provided exceptional employees and executive staff with support, resolving complex technical issues with effective communication skills.
- Troubleshooting and diagnosing Windows devices and mobile phones to identify the root cause of the issues.
- Enhanced data security, implementing rigorous backup procedures to our cloud provider to ensure all devices are backed up at all time.
- Managed multiple high-priority projects simultaneously, consistently meeting deadlines while maintaining attention to detail.
Controls Engineering Technician
Cue Health Inc.
09.2022 - 02.2023
- Troubleshoot all kinds of vision system problems using In-Sight Explorer for Cognex cameras.
- Troubleshoot all aspects of electrical control systems such as Control Units, PLC, Sensors, and Pneumatics.
- Assisted in developing the PLC code as needed using RSlogix5000 for Allen-Bradley PLC.
- Troubleshoot Denso Robotic systems using the teach pendant.
Machine operator
Cue Health Inc.
12.2021 - 09.2022
- Performed basic troubleshooting on daily basis to ensure the lowest downtime for production.
- Operated automated-robotic machines after each troubleshooting efficiently and accurately to ensure quality products for our customers.
Manufacturing operator I and Backup lead
Thermofisher
04.2021 - 12.2021
- Promoted as a backup lead after 3 months of employment.
- Managed a manual line of operators to efficiently reach our target.
- Tracking of available materials and requesting more from the warehouse department if needed.
Benefits Specialist
Willis Towers Watson
08.2020 - 12.2020
- Answered all incoming and made outbound calls regarding Pension and Health benefits for the participants.
- Worked professionally and build connections to achieve the best customer experience.
- Worked with different clients such as CITI bank, Ingram Micro, Costco, and Ericsson.
- Managed different cases and followed up on opened cases.
Education
Associate of Science - Cyber Security
San Diego City College
San Diego, CA05-2027
Skills
- Network troubleshooting
- Microsoft Intune management
- Meraki network management
- Experience with IBM MaaS360 management
- Windows operating system management
- Strong interpersonal skills
- Exchange and MDO integration
- Microsoft Defender XDR implementation
Certification
- CompTIA Certification Training: A+, Network+, Security+ (Vouchers Included), National University, 2022.
- CompTIA Security+ certified.
- Mitigate Threats and Vulnerabilities with Security Command Center Skill Badge from Google.
Timeline
Senior System Administrator
Pegasus Building Services
05.2025 - Current
Systems Administrator
Pegasus Building Services
03.2024 - 04.2025
Technical Specialist
Pegasus Building Services
03.2023 - 05.2024
Controls Engineering Technician
Cue Health Inc.
09.2022 - 02.2023
Machine operator
Cue Health Inc.
12.2021 - 09.2022
Manufacturing operator I and Backup lead
Thermofisher
04.2021 - 12.2021
Benefits Specialist
Willis Towers Watson
08.2020 - 12.2020
Associate of Science - Cyber Security
San Diego City College
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