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Julien TréhinJT

Julien Tréhin

Supermalter

Expert LCA | LCA Automation | Eco-design

€800/day
2 projects
Annecy, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

🌱 Expert in LCA (Life Cycle Assessment) | LCA Automation | Eco-design

I guide you from assessment to implementation of solutions, up to environmental communication.
  • Full LCA - Studies compliant with ISO 14040 / 14044 / 14067 standards, sector-specific references, adapted to environmental communication needs (reports, declarations, product comparisons), with or without critical review.
  • LCA Automation - Methodological evaluation, creation and structuring of LCA databases, development of automated parameterized models.
  • Simplified LCA - Quick analyses to identify the main impact areas, document assumptions, and highlight clear reduction levers.
  • BV Green Process Mark Certification of your integrated LCA automation process.
  • LCA Critical Review as an independent verifier. Allows verification if the conducted study meets the requirements of the followed methodology.
  • Eco-design - Ideation, definition and implementation of concrete solutions, construction of design roadmaps, prioritization, material and process trade-offs, and preparation of reliable environmental communication materials.

Method & deliverables:
  • Professional LCA software SimaPro
  • Environmental databases Ecoinvent, BAFU, Agribalyse, EF, Base Empreinte®
  • Deliverables: Clear report including all source files (complete inventories, SimaPro projects...)
  • Expert Eco-design Diagnosis referenced by Bpifrance & ADEME (depending on your company's and project's eligibility)

🤝 Ready to take action? Contact me to discuss how I can help you achieve your environmental goals.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Annecy (up to 50km), Lausanne (up to 50km), Lyon (up to 50km), Grenoble (up to 50km), Paris (up to 50km)

Experience

  • NOSUAL
    Expert Life Cycle Assessment (LCA) & Eco-design Consultant (Founder)
    CONSULTING AND AUDITS
    March 2024 - Today (2 years and 3 months)
    Annecy, France

    Founder of NOSUAL, a consulting firm specializing in LCA, LCA automation, and eco-design.


    As an **independent consultant**, I have led projects on:
    • ObtainingBV Green Process Mark Certificationfor an integrated LCA automation process, including automated carbon footprint comparisons.
    • Screening LCA and full LCAs to assess the environmental footprint of products and services.
    • Developing an internal LCA database of +2000 processes.
    • Defining a life cycle assessment methodology according to ISO 14040/14044/14067 standards and the ATIEL sector-specific reference.
    *Critical reviewsaccording to ISO14071standard.
    • Ideation workshops, definition ofeco-designpathways, up to roadmaps integrating cost/impact/functionality prioritization and material/process trade-offs.
    *Trainingand awareness workshops to integrate LCA and eco-design approaches into teams' daily work.


    Examples ofbusiness sectorsfor which I have conducted missions: medical devices, IVDs, light housing, industrial lubricants, responsible digital, sailing propulsion, hydrogen & electric automotive.

    Complete support, from strategy to operational solutions.
    LCA Eco-design Environmental Analysis LCA Automation BV Green Process Mark Certification
  • Becton Dickinson France
    Eco-design Engineer & Life Cycle Assessment (LCA) Expert
    PHARMACEUTICALS INDUSTRY
    December 2022 - December 2023 (1 year)
    Le Pont-de-Claix, France
    Becton Dickinson - Medical–Pharmaceutical Systems Business Unit in Le Pont-de-Claix. Products: **Pre-filled syringes**, **safety devices**, and **auto-injectors**.
    Mission: Responsible for environmental assessment and eco-design projects for medical devices.

    Major contributions:
    • Life Cycle Assessment (LCA): Screening LCAs compliant with ISO14040/14044/14067, PEFstandards.
    • Environmental expertise: Project support and definition of eco-design & LCA roadmaps.
    • Selection of **sustainable materials**: recycled, bio-based, ISCC+.
    • Development of **eco-design tools**: Contribution to the improvement of tools for integrating sustainability into product development.
    • **Scientific communication**: Presentation of the poster "How to improve the environmental footprint of Drug Delivery Systems?" at the Life Cycle Management Conference 2023.
    LCA Eco-design
  • Forvia
    Eco-innovation Engineer
    AUTOMOBILE
    April 2022 - September 2022 (5 months)
    Bavans, France
    Faurecia - Clean Mobility LAB in Bavans. Products: **Battery packs**, **hydrogen systems**, **exhaust systems**.
    Eco-innovation internship, as part of a Specialized Master's in Sustainable Change and Innovation Management at Arts et Métiers.

    Major contributions:
    • Eco-innovative projects:Environmental impact analysesfor innovative projects.
    • **Eco-design tools**: Improvement and development of eco-design tools (**LCA, simplified LCA, checklists, guidelines**) integrated into the product development process.
    • Knowledge management: Analysis and capitalization on eco-design and sustainable development.
    • Eco-innovation:Professional thesison integrating environmental assessment of ideas in the creative phase.
    • Creativity: **Facilitation of creativity sessions**, preparation and writing of minutes, fostering collaborative innovation.
    • Demonstrators: Design and creation of demonstrators (sketches, mock-ups), concretely illustrating eco-innovation concepts.
    LCA Eco-design CSR and Sustainable Development Strategy LCA Automation

Reviews

5.0

Out of 1 rating

C

Céline

Amélioration et certification d'une plateforme digitale d'écoconception pour TotalEnergies Lubrifiants. - TotalEnergies Lubrifiants

Less than 1 year project

-

Reviewed on 1/21/2026

In a context where the entity wishes to scale up the calculation of the environmental footprint of its products and undertake an eco-design approach, the certification of the dedicated digital tool constitutes an important and structuring step. The objectives of this certification are to ensure that the environmental calculations produced by the digital application are reliable and traceable, and that the associated environmental communication is controlled. The certification process involved a methodological review of the life cycle assessments carried out and a verification of the compliance of the process with ISO standards. This mission was carried out in interaction with numerous stakeholders and in co-construction with a dedicated digital team. The project led to several deliverables: the development of a methodology and its verification by the certifying body, the structuring of processes for calculating environmental footprints, the implementation of tests to verify the robustness of the digital application, the drafting and organization of related documentation, as well as the establishment of monitoring KPIs. Julien demonstrated great professionalism in his interactions with all stakeholders; he is proactive, shows great technical mastery, and remains attentive to stakeholders.

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Education

  • Specialized Master's in Sustainable Change and Innovation Management
    Arts et Métiers ParisTech - École Nationale Supérieure d'Arts et Métiers
    2022
    Compétences : • Réaliser une expertise environnementale d'un produit ou d'un service. Maitrise de l'Analyse de Cycle de Vie (AVC) et du Bilan Carbone. Réalisation d'une ACV sur la valorisation des pâles d'éolienne en matériaux composites pour l'entreprise IPC. • Déployer une démarche d’éco-conception et d’éco-innovation. Proposition de nouvelles alternatives de conception permettant d’améliorer le profil environnemental d’un produit, d’un bien ou d’un service. • Gérer les projets et accompagner le changement au sein des entreprises. • Animer l’innovation créative et durable. • Connaissance du système de management environnemental (SME) et RSE.
  • Master in Innovative Project Management
    IAE Montpellier
    2021
    Compétences : • Management et pilotage de projets innovants. • Techniques d'idéation. • Création et analyse de Business Model / Business Plan. • Création d'entreprise. • Intelligence économique, veille concurrentielle et benchmarking. • Connaissances en comptabilité, marketing et marketing de l'innovation.

Certifications

  • Climate Fresque Facilitator
    La fresque du climat
    2022
    Climate Change Adaptation Environmental Awareness Climate Change Awareness Workshop Facilitation
  • Carbon Footprint Assessment®
    ABC (Association for low-carbon transition)
    2024
    Carbon Footprint Assessment Carbon Footprint Assessment®

Skill set

Categories