Christos Gourzoulidis - Senior Cloud Security Consultant

⁰² About

About me

As a Senior Cloud Security Consultant at NVISO Security, I help clients across various sectors and industries in evaluating, enhancing, and maintaining their cloud security posture and compliance. I have expertise in Azure, Microsoft 365, Kubernetes, and Microsoft Sentinel. In addition, I utilize PowerShell and Infrastructure as Code across various projects to automate cloud security tasks and solutions, thereby enhancing cloud security posture and optimizing security processes.

I hold a Master's degree in Computer and Information Systems Security from the University of Piraeus, where I gained a solid foundation in both the theoretical and practical aspects of cybersecurity, including cryptography, network security, web security, and digital forensics. I also hold several industry-recognized certifications, such as ISO27001 Lead Auditor.

I am passionate about staying current with the latest cybersecurity trends and challenges, continuously learning new technologies, and crafting innovative, high-quality solutions that align with the business objectives and expectations of my clients. With strong communication skills, I am adept at presenting complex ideas in an accessible way and collaborating with diverse teams and stakeholders.

Two of my greatest passions are getting lost in the rhythm of traditional dance and exploring new corners of the world.

⁰³ Resume

Education
Work Experience
Skills
Certifications

Education

2019 - 2021

Information Systems Security Management and Engineering
Master's Degree, University of Piraeus
Grade: 9.33/10 – Awarded with scholarship due to excellent performance

Areas covered:
• Network and Communications Security (VPNs, OSSEC, IDS-IPS systems, Linux firewalls, OpenSSL)
• Information Security Governance (ISO Standards, IT Risk Assessment)
• Security Architecture Design (Threat Modelling, Security Management)
• Penetration Testing (Windows - Linux including Metasploit, Wireshark, Netcat, Nessus, Nmap)
• Digital Forensics and Malware Analysis (Memory-Registry-Network & System forensics, Disk analysis, APT Incident Handling)
• Software Security (Code review, Web application Security, Black Box Vulnerability Research )
• Internet of Things and Embedded Systems (Side-channel attacks, Tiny-AES encryption method on STM32 microcontroller)
• Cloud Computing (Cloud containerized microservices using Docker containers, Cloud security)
• Special topics including Industry 4.0 (Python for Predictive Analytics) & AI technologies
2011 - 2015

Electrical Engineering
Bachelor's Degree, Technological Educational Institute of Thessaly
Grade: 6.87/10

• Digital & Electrical Systems
• Telecommunications
• Power Electronics

Experience

July 2022 - Present

Senior Cloud Security Consultant
NVISO Security

• Cloud Security Assessments (Azure, Microsoft 365, Kubernetes)
• Cloud Security Compliance/Posture Management (Azure Policy, Microsoft Defender for Cloud)
• Cloud Architecture Deployments (Design and implement via Infrastructure as Code)
• Cloud Security Automation (PowerShell)
• SIEM Engineering (Microsoft Sentinel)
• Providing technical support to customers on cloud security issues
• Mentoring and guiding colleagues on all aspects of their projects
• Conducting Quality Assurance on projects
• Participating in hiring interviews
• Sharing knowledge and expertise, facilitating the learning and growth through presentations, workshops, and documentation
February 2019 - June 2022

Systems Engineer
Entersoft SA

IT Department of Entersoft group of companies:

• Managing and monitoring all installed systems and infrastructure
• Installing, configuring, testing and maintaining operating systems, application software and system management tools
• Ensuring the highest levels of systems and infrastructure availability
• Technical Support, Assisting Colleagues
• Penetration Testing to Web Services, Vulnerability Assessments
• ISO27001 Awareness Campaigns, Training to subsidiaries companies
July 2018 - January 2019

e-Invoicing Service Consultant
Retail@Link SA, member of Entersoft Group

• Installing and customizing applications, locate and resolve operation errors about e-Invoicing service
• Windows printing, document publishing, tax mechanisms operations
• Creating invoicing rules using regular expressions (Regex)
January 2016 - June 2018

Sales Consultant
Kafkas SA

• Generating leads and turning them into opportunities for sales
• Working closely and finding opportunities to cross/up sell
• Building long term relationships with new and existing customers