MOHAMED ABOUISSA
Bakersfield,USA
Summary
Resourceful Senior Systems Administrator with more than 10 years of hands‑on experience in enterprise infrastructure, cloud technologies, virtualization, and network administration. Strong technical foundation spanning Microsoft server ecosystems, Azure cloud services, VMware and Nutanix virtualization platforms, PowerShell automation, and enterprise monitoring tools. Skilled in managing complex, high‑availability IT environments across healthcare and higher‑education sectors, with solid understanding of HIPAA, data‑privacy requirements, and regulatory compliance.
Specialized in operational technology (OT) and life‑safety–critical building systems, with deep experience supporting SCADA and BMS platforms such as Schneider EcoStruxure and Siemens Desigo. Also experienced in security and access‑control systems including CCure, as well as lighting‑control platforms like nLight. Proven ability to enhance system performance, resolve critical issues, and lead migrations and upgrades across integrated IT/OT environments. Known for strengthening system reliability, optimizing network performance, and collaborating across multidisciplinary teams to deliver secure, scalable, and compliant infrastructure aligned with CJIS, ITIL, and organizational standards.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior Systems Administrator - Building Management
Harvard University
10.2024 - Current
- Support and maintain Harvard’s critical Building Management and OT systems, including Schneider EcoStruxure, Siemens Desigo, and nLight SensorView, ensuring reliability, uptime, and secure integration with enterprise infrastructure.
- Lead and participate in application upgrades, migrations, and lifecycle management for OT platforms, including planning, testing, stakeholder coordination, and execution.
- Monitor performance and system health across BMS/OT environments using Splunk and LogicMonitor, proactively identifying degradations, anomalies, and security-related events.
- Manage and analyze network traffic, ACLs, and firewall policies using FortiManager, supporting secure segmentation and compliance with institutional and CJIS standards.
- Deploy and validate monthly OT patching for SCADA/BMS systems using Ivanti and Apex, ensuring availability while meeting cybersecurity and operational requirements.
- Diagnose and resolve application, network, and controller-level issues within SCADA/BMS environments, ensuring minimal disruption to building operations.
- Collaborate with facilities, IT, and OT engineering teams to troubleshoot complex multi-system issues, streamline integrations, and improve operational continuity.
- Maintain system documentation, SOPs, and technical workflows; contribute to continuous improvement initiatives across Harvard University IT (HUIT).
- Support related infrastructure initiatives, including Azure workloads, Windows Server administration, and cross-platform enterprise services as part of the broader OT team.
- Managed server infrastructure to ensure optimal performance and reliability across systems.
Systems Administrator L3
Kern Health Systems
05.2018 - 10.2024
- Administered and supported the ZeOmega Jiva platform and QNXT claims systems, ensuring uptime, performance, and compliance across mission-critical healthcare operations.
- Delivered advanced infrastructure support across Windows Server, VMware, and multi-tier applications, improving system stability and reducing incident volume.
- Automated over 30 recurring tasks using PowerShell and Azure Runbooks, significantly reducing manual workloads and improving operational efficiency.
- Managed SCCM for enterprise patching, software deployment, OSD imaging, and compliance auditing across thousands of endpoints.
- Monitored server and application health, independently troubleshooting complex Tier 2/3 issues involving compute, storage, networking, and application dependencies.
- Coordinated upgrades, patch cycles, and infrastructure enhancements with cross-functional teams and external vendors.
Senior Systems Engineer
Massachusetts Department of Transportation
09.2016 - 08.2017
- Maintained and supported a mission-critical web service used for fare collection across MBTA systems, resolving a Windows Server 2003 failover fault and restoring full redundancy to prevent revenue-impacting outages.
- Coordinated infrastructure upgrades, patch cycles, and service enhancements with cross-functional engineering teams and external vendors to ensure stable, secure, and uninterrupted transit operations.
Senior Infrastructure Engineer
Commonwealth Care Alliance, CCA
05.2016 - 09.2016
- Evaluated and improved infrastructure processes to support organizational growth and operational needs.
- Participated in solution design, requirements analysis, and full lifecycle implementation of enterprise infrastructure initiatives.
Microsoft Server Engineer
CVS Healthcare
12.2015 - 04.2016
- Planned and implemented hardware/software upgrades across Windows Server environments.
- Installed and supported LAN/WAN connectivity and HP Blade infrastructure using Virtual Connect.
- Maintained server hardware and enterprise computing environments.
Senior Infrastructure Engineer
Tronox Inc
08.2014 - 12.2015
- Migrated enterprise infrastructure from Hyper-V to VMware, improving scalability and reliability.
- Monitored application performance, resolved bottlenecks, and collaborated with developers on system optimization.
- Supported system lifecycle activities from design through deployment.
Infrastructure Advisor
Centers For Medicare and Medicaid Services
06.2013 - 02.2014
- Supported Microsoft Failover Cluster 2008 R2/2012 and Hyper-V private cloud environments.
- Ensured high system availability and resolved issues affecting LAN, WAN, and voice infrastructure.
- Assisted with hardware deployment, configuration, and infrastructure lifecycle processes.
Education
Master's Degree Program - Systems Engineering
Harvard University
Cambridge, MA10.2027
Master of Science - Computer Security Management
Strayer University
Washington, DC06.2022
Bachelor of Science - Computer Information Systems
Higher Institute of Computer & Management Information Systems
Alexandria, Egypt07.2002
Skills
Technical Expertise
- Active Directory management
- Windows administration
- System upgrades
- OT Patch Management: Ivanti, Apex, SCCM
- Network Monitoring & Traffic Analysis: Splunk, LogicMonitor, FortiManager
- OT Systems: SCADA, BMS (Schneider EcoStruxure, Siemens Desigo), Ccure, & nLight
- Cloud Infrastructure: Microsoft Azure
- Virtualization: VMware, Nutanix
- Project Management: Application migrations and upgrades
- Security Compliance: CJIS, ITIL
- PowerShell Scripting & Automation
- Cloud Administration: Azure & SaaS Applications
Security & Compliance
- Access Control Lists (ACLs) & Firewall Rule Review
- Cybersecurity Compliance: CJIS, ITIL
- Risk Mitigation & Threat Intelligence
Strategic & Communication Skills
- Process Documentation & Knowledge Sharing
- Cross-Functional Team Collaboration
- Stakeholder Engagement & Project Support
- Multilingual: Fluent in English and Arabic
- IT security management
- Diagnosing issues
Certification
- Criminal Justice Information Services (CJIS) Security & Privacy Training
- Nutanix Hybrid Cloud Fundamentals (NHCF)
- CompTIA Security+
- Microsoft Certified: Azure Administrator Associate
- ITIL v4 Foundation
- Microsoft Certified Professional MCP
- Microsoft Certified System Administrator MCSA
Timeline
Senior Systems Administrator - Building Management
Harvard University
10.2024 - Current
Systems Administrator L3
Kern Health Systems
05.2018 - 10.2024
Senior Systems Engineer
Massachusetts Department of Transportation
09.2016 - 08.2017
Senior Infrastructure Engineer
Commonwealth Care Alliance, CCA
05.2016 - 09.2016
Microsoft Server Engineer
CVS Healthcare
12.2015 - 04.2016
Senior Infrastructure Engineer
Tronox Inc
08.2014 - 12.2015
Infrastructure Advisor
Centers For Medicare and Medicaid Services
06.2013 - 02.2014
Master of Science - Computer Security Management
Strayer University
Bachelor of Science - Computer Information Systems
Higher Institute of Computer & Management Information Systems
Master's Degree Program - Systems Engineering
Harvard University