Tzvika
Perelman

I build and lead the teams that keep enterprises running securely. With 17+ years across IT infrastructure, cybersecurity, and customer operations, I bring both the technical depth to solve complex problems and the leadership skills to scale organizations globally.

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🛡
17+
Years in IT & Cybersecurity
👥
VP
Customer Operations at CyberObserver
🌎
500+
Users Supported Globally
⚡
800+
Servers Managed (VMware)
01 — About

Technology meets leadership

Over seventeen years in the field have taught me that great technology means nothing without the people and processes to support it. I have built my career at the intersection of cybersecurity, infrastructure, and customer success, leading teams in enterprise environments with 500+ users across distributed global networks.

My experience spans the full stack of IT operations: from managing VMware environments with 800+ servers and architecting cloud deployments on Azure and AWS, to building customer care organizations from the ground up at cybersecurity companies like CyberObserver and XM Cyber.

I am a fast learner who thrives under pressure and adapts quickly to change. Whether negotiating with vendors, training teams across time zones, or troubleshooting a critical production issue at 2 AM, I bring the same level of commitment and calm to every challenge.

Location
Israel
Domain
Cybersecurity & IT
Languages
Hebrew, English, Russian
Open To
Global Opportunities
02 — Experience

Where I've been

2018 — 2023
VP Customer Operations / Director
CyberObserver / XM Cyber
Rapidly promoted from Director of Customer Care & Professional Services (2018-2021) to VP Customer Operations (2022), and continued as Director of Observer Customer Operations at XM Cyber post-acquisition (2023). Built the entire customer operations function from the ground up, managing professional services, customer care, and technical writing teams. Designed end-to-end support processes that streamlined the customer journey and drove cross-functional alignment with product, sales, and marketing.
VP LeadershipCybersecurityCCMAcquisitionProfessional Services
2014 — 2017
System Team Leader
Allot Communications
Led the systems team responsible for a large-scale VMware infrastructure: 30+ ESXi hosts, 800+ servers across Production, Staging, Test, and DR environments. Managed the full enterprise stack including storage (EMC, VNX, JBODs), network security (Juniper FW, Cisco switches), identity and messaging (AD, Exchange), and global backup and disaster recovery. Owned SOX compliance and led hardware/software vendor negotiations.
Team LeaderVMwareInfrastructureSOXGlobal
2008 — 2013
System Administrator → Senior System Administrator
Allot Communications
Advanced from System Administrator to Senior System Administrator over five years, steadily taking on greater scope and responsibility. Managed cloud environments on Azure and AWS, secured remote access via Juniper SSL VPN with 2FA, and maintained enterprise infrastructure spanning AD, DHCP, DNS, WSUS, Exchange, Citrix, and Symantec Endpoint Protection. Hands-on experience with SimpliVity clusters and P2V/V2V/V2P conversions in production.
SysadminAzureAWSJuniperExchange
2006 — 2007
Technical Support / Shift Manager
ICSC (HP Services) & Plasson
Delivered enterprise technical support at ICSC, an HP support services provider, working directly with business clients. Prior to that, managed shift operations in the automation department at Plasson, gaining early experience in industrial environments and operational leadership.
HPTechnical SupportAutomation
1997 — 2000
Department Manager
IDF — Ordnance Corps
Led a department in the Ordnance Corps during three years of military service. This formative experience built a strong foundation in leadership, logistics, and managing teams under demanding operational conditions.
MilitaryLeadershipManagement
03 — Expertise

Core competencies

☁️
Cloud & Virtualization
Managed large-scale VMware environments (30+ hosts, 800+ servers) across multiple lifecycle stages. Hands-on with Azure, AWS, Hyper-V, SimpliVity, and production-grade V-Motion/DRS migrations.
🛡️
Network & Security
Secured enterprise networks using Juniper firewalls (SSG/SRX), Cisco switching and Wi-Fi, SSL VPN with 2FA/Duo, and Symantec Endpoint Protection deployed at global scale.
💼
Leadership & Operations
Built and managed customer-facing teams from the ground up, including professional services, helpdesk, sysadmin, and technical writing. Experienced with Freshdesk and HubSpot CRM.
🔧
Infrastructure & Storage
Deep expertise in enterprise infrastructure: EMC/VNX storage, SAN/Brocade, Active Directory, Exchange (2003-2021), Office 365, Citrix, Avaya PBX, and Lync deployments across multiple sites.
📋
Compliance & Governance
Practical knowledge of ISO 27001, NIST, CIS, SOX, SWIFT, and GDPR. Owned SOX policy enforcement including user and group management across the organization.
🌎
Global Reach
Extensive international travel experience. Delivered frontal and remote training globally. Proficient across Windows Server, Linux (RHEL, CentOS, Ubuntu), and Mac OS environments.
04 — Credentials

Compliance & frameworks

🔒
ISO 27001 & NIST
Information Security & Risk Management Frameworks
📊
SOX & SWIFT Compliance
Regulatory Policy & User/Group Management
🛡️
CIS Controls & GDPR
Critical Security Controls & Data Privacy
☁️
VMware & Cloud Platforms
Azure, AWS, ESXi, Hyper-V, SimpliVity
05 — Connect

Let's talk

Whether you have a role in mind, a project that needs leadership,
or just want to exchange ideas, I would love to hear from you.

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