Information Security Consultant

Stelios
Gasparinatos

Cybersecurity and technology executive with 15 years of experience across information security, software engineering, and cloud architecture. Founder of Disect.io, delivering ISO 27001 certification, security audits, and vulnerability assessments.

About Me

Cybersecurity and technology executive with 15 years of experience across information security, software engineering, and cloud architecture. Founder of the cybersecurity firm Disect.io, delivering ISO 27001 preparation & certification, security audits, security architecture design, and vulnerability assessments.

Founder & CTO of Finloup SA (raised €2 million in funding), also serving as DPO, leading GDPR, PCI-DSS, ISO 27001 compliance, and cloud security on AWS.

Extensive background in CISO-as-a-Service, risk assessment, ISMS implementation, and OT cybersecurity projects. Led successful ISO 27001 preparation and certification engagements for organizations across multiple sectors.

Designed security architectures aligned with IEC 62443, NIST CSF, and ISO standards for critical infrastructure including metro systems and national transport networks in Greece, Singapore, and Israel.

15+
Years Experience
50+
Companies Secured
20+
ISO 27001 Certifications
€2M
Funding Raised

Professional Experience

Disect.io

Founder & Principal Cybersecurity Consultant

Jan 2024 - Present
Athens, Greece
  • Founded boutique cybersecurity firm providing GRC and technical security services
  • Led successful ISO 27001 preparation and certification engagements for organizations across multiple sectors
  • Provided CISO-as-a-Service and advisory on risk management, data protection, and compliance strategy
  • Conducted vulnerability assessments and security audits for corporate clients
  • Designed security architectures aligned with IEC 62443, NIST CSF, and ISO standards
  • Currently designing and implementing an AI-driven GRC platform
ISO 27001GRCCISO-as-a-ServiceIEC 62443Risk Management

Finloup SA

Chief Information Officer / Chief Technology Officer / Security & Data Protection Officer

Jan 2020 - Present
Athens, Greece
  • Founder and CIO/CTO of Finloup SA, a fintech startup raising €2 million in funding
  • Architected and managed cloud infrastructure on AWS supporting secure, scalable financial services
  • Designed service architecture using Python, Django, PHP, and JavaScript; led development teams
  • Integrated Finloup services with payment providers, open-banking APIs, credit bureaus, ERP/CRM, and governmental systems
  • Assessed information security risks and implemented mitigation controls across cloud and application platforms
  • Oversaw GDPR and PCI-DSS compliance, acting as Data Protection Officer and Security Officer
  • Evaluated and implemented technologies in KYC, payments, e-signature, and e-commerce ecosystems
  • Leading digital-transformation initiatives across all operational processes
AWSGDPRPCI-DSSFintechCloud ArchitecturePythonDjango

Cyber Noesis P.C.

Senior Information Security Consultant

Feb 2017 - 2021
Marousi, Athens
  • Organized and managed GRC consulting team
  • Delivered GRC projects for leading Greek organizations (insurance, digital marketing, banking, physical security sectors)
  • Served as Information Security and Data Protection Officer for corporate clients
  • Managed information security programs, risk assessments, and ISO 27001 certification projects
  • Designed information security architectures for complex IT and OT infrastructures
  • Delivered security projects for transport organizations in Greece, Singapore and Israel
  • Conducted vulnerability assessments and awareness training programs
  • Led security assessments for critical infrastructure systems (ICS/SCADA security designs and controls)
GRCISO 27001OT SecurityICS/SCADACritical Infrastructure

ILKA S.A.

Software Engineer & System Administrator

Nov 2010 - Jan 2017
Athens, Greece
  • Developed software and system solutions supporting critical physical security infrastructure and IoT equipment
  • Integrated alarm communication systems between all Greek Banks and the Hellenic Police
  • Designed applications in VB.NET and Python; integrated mobile communication services
  • Administered Linux, Windows servers and datacenter monitoring systems
  • Provided technical support and incident response for mission-critical deployments
Software EngineeringSystem AdministrationIoTVB.NETPython

Military Service - Greece

Digital Systems & Cryptographic Equipment Operator - Communications

Nov 2009 - Jul 2010
Greece
  • Managed and maintained the military online correspondence system, ensuring secure and reliable communications
  • Assisted in the maintenance and troubleshooting of military servers supporting classified and operational networks
  • Participated in cyber defense readiness and war simulation exercises
  • Supported encryption systems and digital communication equipment, maintaining operational integrity and compliance with defense-grade security standards
MilitaryCryptographySecure CommunicationsCyber Defense

NewsPhone Hellas

Customer Support & Office Clerk

Nov 2005 - Aug 2009
Athens, Greece
  • Handled public insurance customer support and appointment management
  • Streamlined administrative processes and issue resolution for medical service requests
Customer SupportAdministration

Featured Projects

Selected cybersecurity projects for critical infrastructure and national security

Greek Metropolitan Rail Infrastructure – Information Security Architecture & Risk Assessment

Metropolitan Transport Authority
Greece
Apr 2025 - Present

Led the Information Security Architecture development for a major Greek metropolitan rail project, covering both Operational Technology (OT) and Information Technology (IT) environments.

  • Designed the security zone and conduit model based on IEC 62443/EN 50701 frameworks, ensuring defense-in-depth and secure segregation of systems
  • Conducted comprehensive risk assessments and control mapping aligned with ISO/IEC 27001, NIS Directive, and EU cybersecurity regulations
  • Collaborated with engineering teams, integrators, and stakeholders to embed cybersecurity-by-design principles
  • Provided strategic recommendations for continuous monitoring, incident response, and regulatory compliance assurance
IEC 62443EN 50701ISO 27001NIS DirectiveOT SecurityCritical Infrastructure

Metropolitan Traffic Management System Cybersecurity Program

Land Transport Authority (LTA)
Singapore
2019 - 2021

Conducted the Information Security Architecture design for the LTA's Metropolitan Traffic Management and Control System, aligning with IEC 62443 and NIST SP 800-82 standards.

  • Developed detailed System Security Plans (SSPs) to define and document technical, procedural, and operational security controls
  • Performed risk assessments and threat modeling across IT and OT subsystems
  • Ensured compliance with international security frameworks and local regulatory requirements
  • Collaborated with system integrators and engineering teams to embed cybersecurity-by-design principles
  • Delivered actionable mitigation strategies, strengthening the resilience of critical transport infrastructure
IEC 62443NIST SP 800-82OT SecurityTransport InfrastructureRisk Assessment

Cybersecurity Design for Critical Transport Infrastructure

Transport Organization
Israel
2018 - 2021

Conducted independent security architecture assessment and design for the consortium awarded the national transport modernization project.

  • Conducted security architecture assessment for the national transport modernization project (2018)
  • Evaluated the design and implementation of IT and OT security architectures
  • Ensured compliance with IEC 62443, ISO/IEC 27001, and NIST CSF standards
  • Reviewed network segmentation, access control models, and incident response readiness
  • Advised consortium stakeholders and government representatives on aligning security controls with project governance
Security AssessmentIEC 62443ISO 27001NIST CSFCritical Infrastructure

Skills & Expertise

Security & Compliance

ISO 27001IEC 62443EN 50701GDPRPCI-DSSNIST CSFNIST SP 800-82Risk AssessmentISMS ImplementationVulnerability Assessment

Cloud & Infrastructure

AWS (EC2, ECS, RDS, IAM, VPC, S3)DockerNetwork ArchitectureCloud SecurityInfrastructure DesignLinux AdministrationWindows Servers

Development

PythonDjangoPHPJavaScriptVB.NETSystem ArchitectureAPI IntegrationAutomation

OT/ICS Security

Modbus TCPPROFINETDNP3OPC UASCADA SecurityCritical InfrastructureZone & Conduit Design

Certifications

PMP (PMI, 2023)ISO 27001 Lead Auditor (TÜV, 2017)Data Protection Executive (TÜV, 2018)RHCSA (Red Hat, 2015)SCADA Security Manager (PECB, 2020)

Specializations

GRCCISO-as-a-ServiceSecurity ArchitectureDigital TransformationFintech ComplianceOT CybersecurityCyber Risk Management

Education

M.Sc. in Information Security

University of Piraeus

GPA: 9.4 / 10

Thesis: Malware Development with the Use of Known Techniques

B.Sc. in Computer Science

University of Piraeus

GPA: 7.4 / 10

Thesis: Simulation of hand movement using inertial sensors

Languages

GreekNative
EnglishFluent (C2)

Interests

Playing PianoRunningHikingCyber Risk ManagementDigital Transformation

Get In Touch

Looking for a cybersecurity consultant or CISO-as-a-Service? Let's discuss how I can help secure your organization and achieve compliance.

Contact Information

Services Offered

  • ISO 27001 Preparation & Certification
  • CISO-as-a-Service
  • Security Architecture Design
  • GRC Consulting
  • Vulnerability Assessments
  • OT/ICS Security for Critical Infrastructure
  • GDPR & PCI-DSS Compliance
  • Risk Assessment & Management
  • Cloud Security Architecture (AWS)
  • Digital Transformation & Automation