Freelancer profile translated to English.
Back to original languageAbout David
Specialized in Linux environments and virtualization, I address complex system diagnostic and incident resolution issues, as well as performance optimization.
My expertise focuses on in-depth system analysis (CPU, memory, IO, network) to quickly identify the root cause of incidents and implement reliable, long-term solutions.
Areas of intervention
- Linux incident diagnosis and resolution
- Complex system issue analysis
- Performance optimization
- Virtualization (KVM, Proxmox)
- TCP/IP Networking (analysis, debugging, connectivity)
Complementary Expertise
- Advanced technical investigation and deep understanding of system operation
- Design of PoCs and test environments to reproduce and analyze incidents
- Setup of lightweight and high-performance technical environments (lab, pre-production)
Approach
I primarily work on controlled environments (lab, PoC, pre-production) to reproduce incidents, understand their origin, and validate solutions before going live.
This approach secures interventions and avoids any impact on critical environments.
Modalities
- Interventions mainly remotely
- Availability for ad-hoc interventions and short-term assignments
French
Native or bilingual
English
Fluent
Spanish
Conversational
Portuguese
Conversational
Can work on-site
Paris (up to 50km)
Experience
- Entreprise internationale (confidentiel)Linux & Virtualization Engineer – Critical EnvironmentsTECHJanuary 2018 - Today (8 years and 5 months)Paris, FranceIntervention on critical Linux environments with complex incident diagnosis and resolutionIn-depth analysis of system issues (CPU, memory, IO, network)Setup of virtualised environments (KVM) and performance optimization.Design of PoCs and test environments for reproducing and analyzing incidents.
- Grand groupe industriel (confidentiel)Systems Engineer – Virtualization & Infrastructure OptimizationTECHJanuary 2011 - January 2018 (7 years)Paris, FranceDesign and deployment of virtualised environments (VMware / KVM) for critical infrastructures.Optimization of system resources and infrastructure consolidation to improve performance and stability.Implementation of automation and monitoring tools to ensure operational reliability and reduce incidents.
- Grand groupe industriel (confidentiel)Systems & Network Engineer – Support & DiagnosisTECHJanuary 2005 - January 2011 (6 years)Paris, FranceAnalysis and resolution of system and network incidents in critical environments.In-depth technical diagnosis and implementation of sustainable corrective solutions.Contribution to the continuous improvement of infrastructure stability and performance.
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Education
- Electronics Engineer.Conservatoire des Arts et Métiers2004Ingénieur Electronique.
- Bachelor's and Master's in Electrical Engineering and Applied Physics.Université Paris-Est Marne-la-Vallée2003Licence et Maitrise EEA