Freelancer profile translated to English.
Back to original languageAbout Julien
Passionate and determined, with 22 years of experience as a System, Network, and Security engineer, I am a curious professional, oriented towards learning and innovation.
My expertise in process analysis and security practices improvement allows me to contribute effectively.
Adaptable and mobile, I integrate quickly into teams and am ready to take on new challenges to put my skills at the service of your company and contribute to its success.
French
Native or bilingual
English
Fluent
Can work on-site
Bourges (up to 50km), Tours (up to 50km), Lyon (up to 50km), Clermont-Ferrand (up to 50km), Paris (up to 50km)
Experience
- MichelinHPE Simplivity Expert EngineerAUTOMOBILEJanuary 2025 - August 2025 (7 months)Clermont-Ferrand, France✅ Infrastructure Project Management
- Led the migration of data to a new platform, ensuring adherence to deadlines and security constraints.
- Implemented an automatic backup policy for critical data to guarantee its integrity and availability.
✅ HPE SimpliVity Expertise- Trained internal teams on the use and maintenance of the HPE SimpliVity infrastructure.
- Optimized application performance through close collaboration with development teams.
- Deployed key performance indicators (KPIs) for precise monitoring of infrastructure efficiency.
✅ Cost and Resource Optimization- Reduced maintenance costs by 20% through the implementation of automation processes.
- Decreased energy consumption by 15% by optimizing hardware resource usage.
✅ Data Security- Collaborated with cybersecurity teams to strengthen the protection of sensitive data and ensure compliance with security best practices.
- EquansWorkstation Hypercare EngineerENERGY AND UTILITIESMarch 2024 - December 2024 (9 months)Courbevoie, France✅ Advanced Incident and Business Continuity Management
- Resolved L2/L3 incidents on workstations, ensuring service availability and smooth operations.
- Provided L3 support for all issues related to user environments.
✅ Technical Environment Migration & Deployment- Actively participated in the migration of over 500 workstations to a new system version.
- Deployed workstation infrastructures, including full OS integration, updates, and collaborative tools (Office 365, OneDrive, Outlook 365).
✅ Security Enhancement & Vulnerability Management- Risk analysis, patch application, and environment hardening.
- Configured access rights via Azure Active Directory and Microsoft Intune.
✅ Change Management and Team Support- Supported IT and business teams to ensure smooth adoption of technological changes.
- Participated in transformation projects with analysis, diagnosis, and proactive obstacle resolution.
✅ Maintenance and Technical Documentation- Contributed to updating infrastructure-related documentation and internal procedures.
- Configured and returned Outlook archives, reconfigured Android/iOS devices.
- ENGIE Solutions FranceSysOps and SecOps EngineerENERGY AND UTILITIESAugust 2015 - December 2023 (8 years and 4 months)Courbevoie, France✅ Supervision Expertise
- Proficient with supervision tools: PRTG, SCOM, IP-Label NewTest - Ekara, Dynatrace, Centreon, Nagios, Zabbix.
- Deployed and optimized advanced supervision systems, enabling proactive incident detection and a 20% reduction in downtime.
✅ System Administration and Virtualization- Managed Fortigate firewalls (models 40C to 80E).
- Managed and optimized system resources (Windows, Linux, databases, networks) via HPE SimpliVity 380 (ProLiant DL380 Gen10).
- Configured and managed Hyper-V, AWS, GCP environments.
- Implemented Disaster Recovery Plans (DRP) ensuring service continuity in case of disaster.
✅ Infrastructure Security- Managed Fortigate firewalls (models 40C to 80E).
- Managed security rules via Zscaler.
- Implemented CyberArk bastion and managed privileged access, reducing unauthorized access risks by 50%.
- Monitored security with EDR CrowdStrike.
- Patch management campaigns: Windows Server via WSUS and Linux via ManageEngine Patch Manager Plus.
- Contributed to the implementation of an internal SOC to improve threat detection and incident response.
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Education
- Ingénieur Système2015Conduite et participation à des projets Supervision Rédaction de documentation technique, plan de continuité d’activité, plan de reprise d’activité et reporting Cybersécurité