Igor Guljaš
Expert for IT Security | Cyber Security Enthusiast | THM top 4%
Experience
Expert for IT Security
OTP Banka Serbia
- Lead IT security initiatives and ensure compliance with internal and external standards
- Manage and monitor security infrastructure including endpoint protection, Wallix PAM solutions
- Conduct vulnerability assessments and coordinate remediation efforts
Advisor for IT Security
OTP Banka Serbia
- Supported IT security operations and implementation of security policies
- Maintained and configured security tools including WSUS, backup systems, and antivirus solutions
Application & System Administrator
Erste Bank Serbia
- Managed MSSQL databases and IIS servers
- Administered backup systems (Veritas, Connected Backup) and WSUS patching
- Provided support for internal and external applications and coordinated with European teams for core banking system implementation
- Delivered 1st and 2nd level support for CodeTwo
System & Network Administrator
JapiCom
- Configured and maintained network devices (MikroTik, Cisco) and Windows servers
- Performed basic VMware configurations and ensured network security
IT Associate
Lak Korak 021
- Maintained company website and supported digital marketing efforts
- Provided technical support to the sales department
System Administrator
Novalite
- Managed system and network infrastructure for a development company
- Handled DB maintenance, virtualization, and technical support
System Administrator
JKP Put
- Oversaw IT and communications infrastructure including servers, networks, and backups
- Managed MSSQL databases, Windows environments, and provided end-user support
Associate Procurement Officer
JKP Čistoća
- Handled procurement operations and vendor coordination
Owner / Retail Salesman
Lak Korak
- Managed retail operations and customer service
Summary
Cybersecurity and IT Security Specialist with over 17 years of experience in IT and more than 25 years in diverse roles across the private, public, and banking sectors. Proven expertise in penetration testing, IT infrastructure security, database and network administration, and implementation of enterprise-grade security solutions. Adept at managing complex systems, ensuring compliance, and leading cross-functional teams. Holds multiple industry-recognized certifications including CEH, Microsoft Security, Azure, and Cisco. Known for a proactive approach, problem-solving mindset, and strong communication skills. Respected for bridging technical expertise with business needs while adapting quickly to evolving cybersecurity challenges.
Skills
- Penetration Testing & Vulnerability Assessment
- It Security Operations & Incident Response
- Mssql Server Administration (2008–2019)
- Network Security (Cisco, Mikrotik, Tp-link, At)
- Backup & Recovery (Veritas Netbackup, Connected Backup)
- Windows Server & Workstations
- Linux Os (Basic)
- Pam (Wallix, Thycotic)
- Vulnerability Scanner (Qualys, Openwas-basic)
- Wsus Patch Management
- Endpoint Protection (Sophos, Symantec, F-secure)
- Siem & Monitoring (Qradar, Observeit)
- Firewall & Dlp (Checkpoint, Symantec Dlp)
- Virtualization (Vmware, Hyper-v)
- Python (Basic), Php & Mysql (Basic)
- Erp Implementation (Mis2open, Akord)
- Cybersecurity Training & Continuous Learning
Languages
Education
University of Novi Sad, Faculty of Agriculture
Master of Science in Management · Management · Novi Sad, Serbia
Certifications & licenses
Certified Phishing Prevention Specialist (CPPS)
Microsoft Certified: Security Operations Analyst Associate (SC-200)
Certified Ethical Hacker (CEH)
Azure Database Administrator Associate (DP-300)
Azure Security Engineer Associate (AZ-500)
Azure Administrator Associate (AZ-104)
Cisco Certified Network Professional Enterprise
Acronis Certified Engineer Backup
Cisco Certified Cyber Ops Associate
Veeam Technical Sales Professional
MCSE: Server Infrastructure
Cisco Certified Network Associate Security
MCSA: Windows Server 2012
MCTS: SQL Server 2008
MCTS Server Virtualization
MCITP Enterprise Administrator on Windows Server 2008
Cisco Certified Network Associate Routing And Switching
ECDL Certificate
ISO/IEC 27001:2005
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