Aristidis Dinakus Email & Phone Number

Rotterdam, South Holland, Netherlands

Greece

Thessaloniki, Central Macedonia, Greece

As IT Manager• Managing information technology and computer systems, ensuring critical systems' availability and security.• Manage IT staff by recruiting, training, and evaluating employees.• Led the planning, development, and continuous improvement of an efficient ISMS, while guaranteeing continuous compliance with ISO27001 standard.• Implemented and supported the risk assessment process orchestrating any corrective actions or mitigation actions needed.• Created in-house cybersecurity awareness presentation/training.• Handled annual budget and ensured cost-effectiveness.• Designed and implemented a backup strategy and disaster recovery plan.• Working with the legal team to achieve GDPR compliance, involved in the process of implementing the data protection impact assessment (DPIA).As ISO Project Coordinator• Coordinating multiple departments and teams to achieve compliance with ISO9001, 14001,27001, and 45001.• Maintaining and monitoring project plans and project schedules while ensuring project deadlines are met.• Determining and approving project changes.• Ensuring projects adhere to frameworks and all documentation is maintained appropriately for each project.

Thessaloniki, Central Macedonia, Greece

As part of the security operations center (SOC) team I was designing and implementing security and monitoring solutions based on security information and event management systems (SIEM) while proactively recognizing potential security threats and vulnerabilities on various systems. Furthermore, I was analyzing and classifying threats based on their impact and providing risk feedback to the appropriate team. Some of my duties were: Creating Standard Operating Procedures (SOP) describing the activities necessary to complete tasks in accordance with regulations, investigating and resolving potential threats detected by EDR and SIEM systems and creating and documenting a proper vulnerability management system. Skills gained and technologies that I worked with:• ITIL Framework experience.• Threat analysis on SentinelOne EDR.• Threat hunting on Splunk and Elastic Stack.• Administration of Hardware Security Modules (Thales)• Extensive know-how on Splunk complex architecture deployment.• Vulnerability management and extensive knowledge of Greenbone.• Privileged access management (PAM) administration knowledge (One Identity).• Worked on international projects.• JIRA experience.• FortiSIEM administration and threat hunting experience.

• Coordinating the administration of information IT services.• Ensuring the continuous and uninterruptable operation of the IT services of the oil terminal 24/7.• Fulfilling area-specific requirements and prioritizing tasks and projects while working with organizational- wide IT resources to ensure effective and efficient solutions.• Supporting and providing feedback on the risk assessment process.• Developing security policies and procedures.• Strengthening organization security posture and compliance with ISO27001 standard by designing and implementing technical and non-technical controls.• Designed and implemented company-wide security solutions for achieving a zero-trust security model.

• Administration of Windows and Linux Servers.• Managing hybrid Azure Active Directory.• Responsible for the management of all bare-metal and virtual servers of the company.• Designing and improving the company’s existing network.• Technical Support to Oracle JD Edwards ERP.• Configuration and support on Cisco network devices.• Administration and configuration of various security products such as: Cisco Secure Firewall Management Center (FMC), Cisco Email Security Appliance (CES), Cisco Identity Services Engine (ISE), Cisco Cloudlock, VMware Workspace ONE (MDM), Cisco AMP, and ESET Security Management Center, IBM QRadar.

Served in Research and Informatics Corps, providing hardware and software support, as well as troubleshooting and solving every network-related issue that occurred during that period.

Thessaloniki, Central Macedonia, Greece

• Maintenance and management of company and client network and devices.• Remote technical support on various matters, software and technologies. (2nd and 3rd Level)• Upgrading and maintaining Computers, U.P.S. and Printers. (Hardware and Software Level)• Issuing, installing and confirming the usability of digital certificates in USB tokens for use on Greek public tender procurements by our clients.• Remote technical support in Public Key Infrastructure related problems. (e.g. Issues with certification authority, timestamp related issues, etc.)• Installation and configuration of CCTV circuits and networks.• Web Design and website maintenance. (Mainly for the company website)

Master'S Degree, Cybersecurity, 9.05 (Distinction)

Dissertation Title: Cyber Threat Intelligence Sources for the Internet of Things Dissertation Grade: 10 Included courses: "Computer.

Bachelor'S Degree, Computers And Informatics Engineering

Thesis Title: Using Mobile Phones and NFC to Record Presences securely and effectively. Dissertation Grade: 10 Included courses.