Freelancer profile translated to English.
Back to original languageAbout Yoann
Naturally curious, I was very early on interested in IT due to the variety of its fields. Quickly taking on the multifaceted role of an IT manager for SMEs, I quickly specialized in networks and more particularly in security. After 6 years in IT manager positions, I took on the role of network security engineer with rapid skill development in managing global network architecture within a large chemical group. As guarantor of the operational maintenance and evolution of part of this architecture, daily interactions quickly led me to consolidate my skills in cybersecurity and its application in the technical field.
For the past 8 years, I have had the opportunity to manage projects combining management, global migration project management (Firewall, Cloud, SSE Zscaler, Carve Out), network architecture, cyber architecture, with in recent years SOC integration through SIEM & SOAR (Google Sec Ops, Splunk).
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- SyensqoNetwork Security Service OwnerCHEMICALJuly 2024 - March 2026 (1 year and 8 months)Lyon, FranceMission entrusting the responsibility of building and operating the Zscaler architecture for Syensqo in a complex separation context. The scope included the complete deployment of Zscaler ZIA, ZPA, and ZCC, with the definition of advanced security policies and the implementation of the Zero Trust model to secure access to internal and external applications.Technical integration covers all ISO 27000 standards, with identity integration via Entra ID, as well as interfacing with Google Chronicles SIEM for log centralization and incident detection automation. Integration was carried out in a Google Workspace environment, then Microsoft 365.App Connectors were deployed in AWS, GCP, and Azure hyperscalers.In addition to the build, the mission's objective was also to plan the integration of Palo Alto firewalls across all 120 sites, as well as the construction of the managed services offering, including equipment management.Subsequently, as Network Security Service Owner, the last year of the mission was dedicated to managing all evolutions related to these two technologies (Palo Alto and Zscaler), as well as cyber compliance (SIEM, SOAR, audits, security policies) and architecture.
- SOLVAYPalo Alto Security EngineerCHEMICALMay 2019 - May 2025 (6 years)Lyon, FranceOn assignment at Solvay in the Global Network Security team.- Global firewall management- Incident management, log analysis- Firewall migration and installation projects- Existing infrastructure migration projects- Monitoring of certain projects jointly with Cyber teams (IT+OT)- Implementation of rules on local and internet firewalls- Involved in the "Move to cloud" project- Management of all extranet VPNs- Other firewall-related projects- Participation in certain OT projects- Monitoring of the ITAR / CMMC compliance projectTechnologies & tools:- Palo Alto (Firewall, Prisma Cloud, VM Series, Cortex)- Fortigate- Cisco (switches, routers)- AWS- VPN- LogRhythm
- CSB.SCHOOLCybersecurity TrainerEDUCATION AND E-LEARNINGJuly 2022 - December 2023 (1 year and 5 months)Lyon, FranceProduction and delivery of network and security courses for Bachelors and Masters in Cybersecurity at CSB.School.
Reviews
Maxime
Syensqo
Reviewed on 11/21/2025
Maxime
Syensqo
Reviewed on 10/22/2025
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Education
- License ARU ASUR, Administration of / Network and Systems AdministratorTetras2014Licence ARU ASUR, Administration de / administrateur réseaux et systèmes
- DUT, Networks and TelecommunicationsIUT Annecy2013DUT, Réseaux et Télécommunications
Certifications
- Zscaler Digital Transformation Administrator (ZDTA)Zscaler Academy2025