Who am I?

Personal details

  • Name: Julien Geffray
  • Date of birth: 11 April 1978
  • Nationality: Citizen of France
  • Address: 4 rue Stanislas Baudry, 44000 Nantes, France
  • Mobile: +33 (0)6 63 76 36 21
  • :

Professional profile

My refined technical skills and ability to perfectly understand user's needs allow me to efficiently teach my knowledge and offer tailor-made answers, in order to delight customers and improve their overall satisfaction.

Trained in both arts, communication and technology, I worked in marketing for big creative advertising agencies, then evolved to more technical duties in customer service involving technical diagnosis and problem solving. My work currently entails efficient teaching of my knowledge and tailor-made answers to every user who needs technical support, providing an excellent customer experience. In that, I repair and enhance customers' systems, as well as their relationship with the brand.

My professional background

Work experience

Since 2010 May


SINCE 2012
Apple Store Atlantis
Galerie Atlantis le Centre
44800 Saint-Herblain

Apple Store Carrousel du Louvre
99 rue de Rivoli
75001 Paris


Customer service and relations:
Warm welcome of customers at the Genius Bar in Apple Stores, listening and understanding their needs. Quick troubleshooting and problem solving. Conflict management. Repairing relations. Knowledge transmission. Customer satisfaction.
Perfect knowledge of Apple hardware (Mac, iPhone, iPod, iPad and peripherals) and software (macOS, iOS and apps); cross-knowledge of Mac OS Classic, Windows and UNIX operating systems (GUI & CLI).
Local fleet management with remote IS&T (Information Systems and Technology) in the USA: LAN ethernet and WLAN Wi-Fi, internet and intranet access, routers and modems, patch bays…

2005 March 2010 April

BNP Paribas

Département marketing relationnel
BDDF Com - Studio multimédia AS3C
16 bd des Italiens
75009 Paris

Multimedia project manager

Design and management of the animated commercial communication broadcasted on plasma screens in branches and trade shows.
Apple Final Cut Pro and Motion video editing pushed from a centralized broadcasting control server to local branches over the whole country.
Consultant in video streaming techniques, appropriate software and use of codecs.

2002 2004


Publicis Dialog
département Animation de Réseaux et Stimulation (marketing opérationnel)
133 avenue des Champs-Élysées
75008 Paris

Web site project manager

Management of webdesign, emailing, interactive CD-ROM projects created at Publicis Dialog, marketing department of the leading advertising agency Publicis.

2000 2002


Azimut Communication
22 Quai des Indes
56100 Lorient

Multimedia & web designer

Development of innovative projects at Azimut Communication, a web agency subsidiary of Ouest-Fance, editor of the the most widely-read Francophone newspaper in the world. Digital master planning for smart cities; graphic user interface design of simplified web browsers made for touchscreen interactive kiosks, watchdog app management for consistent uptime of autonomous touch terminals; time management by reverse scheduling; diversification of corporate identities according to style guidelines; ergonomic webdesign, optimization for dial-up connections, cross-browser and cross-platform compatibility (responsive web ahead of its time); SQL Server databases ad ASP scripting.

My training


2010 Since

Apple Sales Training

Apple EMEIA Sales Training
Hanover Street
London, W1B 2EL

Apple Certified Macintosh Technician (ACMT) Certification

This certification verifies the ability to perform troubleshooting and repair of desktop, portable and mobile Apple systems. ACMT certification exams emphasize identifying and resolving common macOS problems, and using Apple Service and Support products and practices to effectively repair Apple hardware.

1998 September 2000 June

IUT de Laval

Département SRC
52 rue des docteurs Calmette et Guérin
53000 Laval

DUT SRC (Multimedia) + TOEFL

Technical diploma DUT SRC at Laval University Institute of Technology, attached to the University of Maine, France. This degree covers communication, audiovisual and graphic design for print and web media, servers and computer networks.

Test of English as a Foreign Language (TOEFL) : scored 105.

1996 September 1998 June

Université Bretagne-Sud

Faculté des Sciences
4 rue Jean Zay
56100 Lorient

Bac S + DEUG SM (physics degrees)

Secondary-school diploma in Sciences (Bac S) and Bachelor's degree in physics (DEUG SM) at the University of Southern Brittany, Lorient, France.

What I'm best at

Skills & knowledge


Organization, anticipation89 %
Flexibility, réactivity81 %
Thorough precision80 %
Listening, empathy75 %
Teaching skills, persuasion78 %
Editorial capabilities 85 %
90 %Technical expertise
* According to internal metrics and skills assessment.

Language skills

French Native
English Fluent


  • Software
  • macOS & iOS, Windows
  • Final Cut Pro + Motion
  • Photoshop/Illustrator, SketchUp
  • HTML5/CSS3, JS/PHP/shell
  • Concepts
  • Usability
  • Ergonomics
  • Design theories
  • Theory of colours
  • Rules of typography
  • Science & Technologies
  • Raspberry pi & Arduino
  • 3D printing
  • DIY projects & hacks
  • Magnetohydrodynamics[1]
  • Astrophysics[2]
[1] Copublication of 4 papers about MHD propulsion:
  • Petit, J.P.; Geffray, J. (June 2009): "MHD flow-control for hypersonic flight" in Proceedings of the 2nd Euro-Asian Pulsed Power Conference, Vilnius, Lithuanie (22–26 September 2008), Acta Physica Polonica A 115 (6): 1149–1151.
  • Petit, J.P.; Geffray, J. (June 2009): "Wall confinement technique by magnetic gradient inversion. Accelerators combining induction effect and pulsed ionization. Applications." in Proceedings of the 2nd Euro-Asian Pulsed Power Conference, Vilnius, Lithuanie (22–26 September 2008), Acta Physica Polonica A 115 (6): 1162–1163.
  • Petit, J.P.; Geffray, J. (June 2009): "Non equilibrium plasma instabilities" in Proceedings of the 2nd Euro-Asian Pulsed Power Conference, Vilnius, Lithuanie (22–26 September 2008), Acta Physica Polonica A 115 (6): 1170–1173.
  • Petit, J.P.; Geffray, J.; David, F. (19–22 October 2009): "MHD Hypersonic Flow Control for Aerospace Applications", AIAA-2009-7348, 16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference. (HyTASP), Bremen, Germany. doi:10.2514/6.2009-7348.
  • [2]
  • Petit, J.P.; Debergh, N.; d'Agostini, G. (octobre 2018): "Negative energy states and interstellar travel" in Proceedings of the 3rd Advanced Propulsion Worskhop, Estes Park, CO (English translator).
  • Creator and webmaster of JanusCosmologicalModel.com
  • Hobbies & interests

    • IT


      Personal computers, smartphones, tablets, wearable computers, artificial intelligence, networks…

    • Sciences


      Aeronautics and space, cosmology, robotics, new propulsion schemes, new energy sources (renewable, aneutronic fusion)…

    • Design


      Automotive, objects, architectural and interior design. DIY projects & 3D printing.

    • Travel


      England, Ireland, Switzerland, Spain, Italy, Greece, Germany, Luxembourg, Maldives, Tunisia, Marocco, Tanzania, USA, Canada.

    • Environment


      Eco-aware, sustainable development, environmental conservation. Natural and organic food.


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    My Address

    • 4 rue Stanislas Baudry, 44000 Nantes, France
    • +33 (0)6 63 76 36 21

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