15.06.2026 aktualisiert

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Senior Information Security Architect (IT/OT) | Zero Trust & Risk Management Specialist | SC Cleared

Hamburg, Deutschland
Nur Remote
University Degree
Hamburg, Deutschland
Nur Remote
University Degree

Profilanlagen

Adrian_Vesa_CV.pdf

Über mich

Freelance Information Security Architect with 25+ years of experience in designing and implementing enterprise-grade security solutions across banking, aerospace, manufacturing, pharmaceutical and technology sectors.

Skills

Cloud-SicherheitInformationssicherheitGovernance-Risikomanagement und ComplianceNetwork SecurityRemote Access ServiceZero Trust Network AccessVulnerability ManagementSicherheitssystemeIT-ArchitekturFirewallsFortinet
IT & OT Security Architecture
Comprehensive expertise in designing and implementing security architectures for both IT and OT environments, including Zero Trust models, network security, and risk management frameworks.

Network Security Engineering
Advanced skills in network security design, implementation and management including firewalls, VPNs, secure remote access, and network segmentation using technologies like FortiGate, Zscaler, and Cisco solutions.

Cybersecurity Risk Management
Extensive experience in conducting risk assessments, vulnerability management, security governance, and compliance with regulatory requirements across multiple industry sectors.

Zscaler Cloud Security Platform
Deep expertise in Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA), and Zscaler Digital Experience (ZDX) implementation and management.

Fortinet Security Solutions
Comprehensive knowledge of FortiGate firewalls, FortiManager, FortiAnalyzer, and related Fortinet security products for enterprise deployments.

Professional Security Certifications
Multiple industry certifications including CISSP, ITIL v3, FCNSP, CCNP, MCSA, and CWNA demonstrating broad security expertise.

API Integration and Automation
Experience with API integration between security platforms, automation solutions, and service management tools like ServiceNow and Azure API Management.

Cloud Security Architecture
Knowledge of cloud security implementations, Azure AD integration, and hybrid cloud security models for enterprise environments.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2013

Sprachen

EnglischverhandlungssicherFranzösischverhandlungssicherItalienischverhandlungssicherRumänischMuttersprache

Projekthistorie

Global Information Security Consultant

EVOTEC SE

Pharma und Medizintechnik

1000-5000 Mitarbeiter

Provided security risk management, architecture and governance consulting within enterprise IT & OT environments, supporting regulatory compliance and risk mitigation strategies.

Responsibilities
 Conducted security risk assessments across enterprise software and infrastructure systems
 Developed risk mitigation strategies aligned with corporate security policies
 Supported regulatory compliance and governance activities
 Delivered security reporting and recommendations to senior stakeholders

Achievements
 Successfully mitigated every security risk assigned, preventing them from escalating to the Security Board for acceptance
 Supported adoption of emerging security practices related to AI technologies

Network Security Service Owner / Network Security Architect

KNAUF INFORMATION SERVICES

Internet und Informationstechnologie

500-1000 Mitarbeiter

Designed and implemented network security standards, best security practices and Zero Trust.

Responsibilities
 Owned and governed enterprise-wide network security services, ensuring alignment with corporate security standards and Zero Trust principles across IT and OT environments.
 Reviewed and approved security architectures, firewall changes, external connectivity, and secure remote access solutions (Zscaler ZPA, IPSec VPN), reducing exposure to unauthorized access.
 Led and contributed to key security transformation initiatives, including FortiGate deployments, firewall segmentation, policy standardization, and iDMZ design.
 Drove the adoption of Zero Trust architecture by evaluating and integrating modern security solutions, improving overall security posture and access control maturity.
 Acted as a central decision authority for secure connectivity (suppliers, remote access, privileged access), balancing risk mitigation with business enablement.
 Collaborated with global stakeholders across IT and OT to enhance plant and enterprise security while supporting digitalization initiatives.

Achievements
 Strengthened segmentation and access control across IT/OT environments through standardized firewall policies and Zero Trust design.
 Improved operational efficiency and security governance by streamlining Zscaler policies and remote OT connectivity.

Solution Specialist / Zscaler API and automation consultant

SANDVIK

Industrie und Maschinenbau

>10.000 Mitarbeiter

Provided consultancy on the secure integration and automation between Zscaler and ServiceNow

Responsibilities
 Designed and implemented API-driven automation between Zscaler and ServiceNow using Azure API Management, enabling scalable and consistent security workflows.
 Optimized Zscaler (ZIA/ZPA) configurations by applying best practices, improving performance, policy consistency, and security effectiveness.
 Produced detailed technical documentation, architecture diagrams, and process flows to support automation and operational handover.
 Collaborated with cross-functional teams to deliver end-to-end integration and ensure successful testing and deployment.
 Provided technical guidance and stakeholder presentations, translating complex implementations into business-relevant outcomes.

Achievements
 Delivered a fully integrated automation solution reducing manual intervention in Zscaler-ServiceNow processes.
 Enhanced visibility and control over security workflows through structured API integration.

Network Security Engineer / Zscaler Design & Implementation Engineer

NATIONALE-NEDERLANDEN

Banken und Finanzdienstleistungen

>10.000 Mitarbeiter

Designed and implemented cloud-based network security solutions based on Zscaler, on a large scale.

Responsibilities
 Designed and implemented Zscaler-based cloud security architecture across multiple countries, supporting the organization’s transition to a Zero Trust model.
 Led large-scale deployment of Zscaler Client Connector to 7,000+ users across 10 countries, enabling secure, cloud-based internet access.
 Migrated traffic from legacy on-premise proxy infrastructure (Blue Coat) to cloud-native security solutions, improving scalability and user experience.
 Developed PAC files, deployment strategies, and migration plans ensuring minimal disruption during rollout.
 Provided post-deployment support and continuous optimization, ensuring service stability and user adoption.
 Worked within Agile/Scrum teams to deliver iterative improvements aligned with business and security goals.

Achievements
 Successfully executed a multi-country rollout impacting thousands of users with minimal disruption.
 Accelerated Zero Trust adoption and improved user experience through cloud-first security architecture.

Network Security Engineer / Zscaler Implementation Engineer

EUROFINS

Pharma und Medizintechnik

>10.000 Mitarbeiter

Delivered global implementation of cloud-based proxy security architecture following a major cyber incident.

Responsibilities
 Implemented Zscaler SaaS proxy solution across global infrastructure
 Configured URL filtering, SSL inspection and malware protection
 Produced operational documentation (SOPs, FAQs)
 Supported incident resolution and user onboarding

Achievements
 Successfully deployed secure proxy solution to 35,000+ devices globally
 Contributed to enterprise security recovery following cyber incident
 Trained SOC teams on how to deal with specific incidents
 Improved global visibility into web traffic and threat activity

Security Problem Manager

DEUTSCHE BANK

Banken und Finanzdienstleistungen

>10.000 Mitarbeiter

Provided security risk management for DB, as part of the CISO team.

Responsibilities
 Led proactive security problem management within the CISO function, focusing on root cause analysis and long-term remediation of security issues.
 Drove the identification and mitigation of systemic vulnerabilities, reducing recurrence of incidents across the IT environment.
 Managed and tracked security issues (SIIs) in alignment with Operational Risk Management frameworks, ensuring regulatory and internal compliance.
 Coordinated cross-functional efforts with Threat Intelligence, Incident Response, Red Team, and business units to address complex security challenges.
 Delivered reporting and insights to stakeholders, improving visibility into security risks and remediation progress.

Achievements
 Reduced repeat security incidents by enforcing structured root cause analysis and remediation processes.
 Strengthened collaboration between security, risk, and business teams, improving overall risk posture and governance.

Security Engineer / Architect

ORANGE CYBERDEFENSE BELGIUM

Internet und Informationstechnologie

1000-5000 Mitarbeiter

Performed migrations of services for large worldwide clients from Cisco or CheckPoint to Fortinet, helping save money on infrastructure and licenses while improving security posture. Responsible for LLD of new solutions, integration and implementation.

Security Manager / Security Architect

ADECCO

Sonstiges

>10.000 Mitarbeiter

Applied and enforced IT security in the company including reviewing and approving changes, managing security incidents, analyzing reports, conducting penetration tests, and supporting migration to new business model and cloud services.

Fortinet Security Consultant - Airbus A350 MES

DIMENSION DATA (AIRBUS)

Automobil und Fahrzeugbau

>10.000 Mitarbeiter

Deployed, configured and managed over 80 FortiGate firewalls in France, Germany and Spain for securing Airbus A350 aircraft production plants. Developed and implemented security policies, updated firmware and implemented best practices.

Team Leader and Senior Technical Support Engineer

FORTINET
Led and mentored a team of 12 Engineers while solving complex technical tickets involving Fortinet products.

Senior Systems Engineer II on-site

MOTOROLA (SYMBOL TECHNOLOGIES)
Worked as 3rd tier support for Motorola's Technical Architects and partners with Enterprise wireless products and solutions, traveling on-site to solve complex issues and interacting with development team for firmware bug fixes.

Network & Security Engineer, 2nd tier

IBM
Administered and performed security checks, hardening and configuration changes on more than 10000 network devices from various vendors. Also served as technical focal point for IBM's TSCM project dealing with testing and development.

Network & Systems Administrator - Team Leader

UNIVERS'ALL TRADING ROMANIA
Administered IT infrastructure of 4 supermarkets including operation and security of Windows and Linux servers, network infrastructure, and proprietary applications.

Technician

TONI'S TRADE
Assembled, sold and repaired computer equipment and parts, installed and configured Windows and Linux operating systems.

Zertifikate

CISSP

ISC2

2014

FCNSP

Fortinet

2013

CCNP

Cisco

2012

ITIL Foundation

Peoplecert

2011

CWNA

CWNP

2010

MCSA

Microsoft

2009

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