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Julien GhersyJG

Julien Ghersy

Systems Engineer, FS, ILS, MCO

€700/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Do you work on complex industrial systems where reliability, availability, and safety are critical?

As a senior independent consulting engineer, I have been supporting high technical requirement projects in the naval, defense, and nuclear sectors for over 20 years.

I help secure your systems and projects, from analysis to operational implementation:
  • System analysis and requirements management
  • Functional Safety (FS): FMEA, FMECA, RAMS, risk analyses, fault trees
  • Integrated Logistic Support (ILS): LORA, documentation, spare parts management
  • In-Service Support (MCO): availability, lessons learned, cost of ownership optimization
My approach: combine engineering rigor with field pragmatism to produce directly usable results.

I intervene according to your needs:
  • Independently on a complete study
  • As support to quickly integrate your teams
  • For management to structure and oversee an activity
Interventions are mainly remote to maximize efficiency and responsiveness.

Targeted travel for key project stages: scoping, data collection, strategic meetings, milestones, and reporting.

As an independent, I am your single point of contact, directly committed to results, with a high level of responsiveness.

Available to discuss your projects or technical challenges.
  • English

    Native or bilingual

  • Spanish

    Conversational

Can work on-site
Paris (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km), Toulon (up to 50km), Lyon (up to 50km)

Experience

  • Camana Ingénierie
    Senior Systems Engineering Consultant – FS / ILS / MCO
    March 2026 - Today (3 months)
    I support complex industrial projects with high criticality (naval, defense, nuclear) in mastering their systems.

    My goal: to ensure reliability, availability, and operational performance.

    Interventions:
    • System analysis and architecture
    • FMEA, FMECA, RAMS, risk analyses
    • Safety cases
    • Logistic support (LORA, documentation, spare parts)
    • MCO and lifecycle optimization (LCC)

    Flexible intervention: autonomy, support, or management.
    Systems Engineering Functional Safety (RAMS / FMEA / FMECA) Integrated Logistic Support (ILS) In-Service Support (MCO) Risk Analysis
  • CNIM
    Naval MCO Technical Manager
    July 2021 - December 2025 (4 years and 5 months)
    La Seyne-sur-Mer, France
    Technical MCO manager for complex naval systems, in direct interface with the client (French Navy / SSF).

    Technical and operational management:
    • Planning and coordination of maintenance work
    • Management of subcontracting and technical tenders
    • Analysis and resolution of technical issues
    • Coordination of on-site / shipyard operations
    • Client interface and monitoring of operational requirements

    Objective: guarantee the operational availability of systems in constrained and demanding environments.
    In-Service Support (MCO) Technical Management Technical Coordination Subcontracting Management Operational Availability
  • CNIM
    FS / ILS Engineer
    August 2010 - October 2021 (11 years and 2 months)
    La Seyne-sur-Mer, France
    Design engineer specializing in Functional Safety (FS) and Integrated Logistic Support (ILS) for complex industrial systems (naval, defense, nuclear).

    Carrying out studies and technical deliverables throughout the systems' lifecycle:
    • Functional safety analyses: APR, FMEA, FMDS, RAMS
    • Compilation of FS files
    • Development of logistic support files
    • Writing of operating and maintenance documentation

    Involvement in major projects in the fields of:
    • Naval (LCAT, EDAR, EDAS)
    • Land projection (SPRAT, PFM)
    • Civil Nuclear (GB2, HPC)
    • Deterrence (TLM SNLE, PBA)

    Participation in various project phases:
    • Bid costing
    • Studies
    • Client interface

    Management of subcontractors and technical coordination.
    Functional Safety (RAMS / FMEA / FMECA) Integrated Logistic Support (ILS) Risk Analysis Functional Analysis LoRa

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Education

  • Engineering Degree
    ITII PACA / ENSAM
    2009
    Diplôme d'ingénieur
  • Professional Bachelor's Degree in Industrial Production, Mechanical Design
    IUT Aix en Provence
    2006
    Licence professionnelle production industrielle, Conception mécanique

Skill set

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