R&D and Quality Director at Preciflex SA2013-
Development Engineer and Project Leader at Helbing Technik Bern AG, Medical devices Team2008-20013
Researcher and Assistant at the Advanced Photonics Laboratory (EPFL) 2003-2007
One Year civil service in Basel in a house for Drugs addict people (Haus Elim)  2002-2003
Creation of Web Sites for the Protestant Church2001-2006
Assistant at the Microcontroller course2001
Two practical training’s in the computer science laboratory of the EPFL , domain: microcontroller; Achievement of assemblers for varied processors1999/2000
Practical training (one month) at the Ecole des métiers of Lausanne (ETML) on machines 1999
Two month job in the company Dubois-Dépraz (Le Lieu): watch assembly1997
PhD Thesis on Multiple optical trapping for biological applications (Laser tweezers group) 2003-2007
Modeling and control of an orthesis for rehabilitation of paraplegic; biomechanical studies, human movements simulation (diploma work) 2002
Electrical muscles stimulation system for the mentioned orthesis: creation of a program for microcontroller and PC program for command (semester work)  2001

PhD Thesis at  the Institute for Applied Optics (EPFL), Lausanne 2003-2007
Swiss Federal Institute of Technology (EPFL), Lausanne
  Section Microengineering
  Orientation: Production techniques
  Prize: Hilti Mechatronic    1997-2002
Third years done at the Technische Universität Darmstadt (D) as Erasmus student  1999-2000
Gymnase de la Cité (Lausanne): Federal maturity (University entrance) - 1997
  Section XB (Latin - English - Mathematics)
  Prizes : Latin and antique culture, Physics, Sport  

French :   mother language
German :   spoken and written fluently (two years spent in Germany and Basel)
English : spoken and written level « First », redaction language of the thesis
Swiss German:  oral comprehension
Spanish :  oral knowledge

Very Good knowledge of MS Windows and software: Word, Excel, PowerPoint, 
Knowledge of UNIX/LINUX operating systems. Windows SBS, Adobe Premiere and Illustrator, MS Project, Adobe Photoshop
CAD and Engineering: Pro-Enginee, Solidworks, I-DEAS, Comsol, Mathcad, Smath
Programming in C, assembler, Matlab, LaTeX, PHP, HTML and web design
Basic Knowledges of Labview,  L-Edit, MS Access, Flash

Project Mangement (Next level)
Accounting and financial management course
Formation of leader for catechumen (JACK)
Certificate of instructor for young people in ski hiking (J+S)

Climbing and mountain: member of the Swiss alpine club (CAS)
Sport: alpine ski, cross-country ski, ski hiking, biking, member of the gymnastic society (FSG)
Former Trumpeter at the symphonic “Orchestre de Ribeaupierre”, Alphorn player 

T. M. Grzegorczyk, J. Rohner and J.-M. Fournier (2014), Optical Mirror from Laser-Trapped Mesoscopic Particles, Physical Review Letters, 112, 023902.
J. Rohner, J. M. Fournier,P. Jacquot , F. Merenda and R. P. Salathe (2006). Multiple Optical Trapping in High Gradient Interference Fringes. Optical Trapping an Optical Micromanipulation III, San Diego, Proc. SPIE.
F. Merenda, G. Boer, J. Rohner, G. Delacretaz and R. P. Salathe (2006). Escape trajectories of single-beam optically trapped micro-particles in a transverse fluid flow. Optics Express 14(4): 1685-1699.
J.M. Fournier, J. Rohner, P. Jacquot, R. Johann, S. Mias and R. P. Salathe (2005). Assembling mesoscopic particles by various optical schemes. Optical Trapping an Optical Micromanipulation II, San Diego, Proc. SPIE.
J. M. Fournier, G. Boer, G. Delacrétaz, P. Jacquot, J. Rohner and R. P. Salathé (2004). Building Optical Matter with Binding and Trapping Forces. Optical Trapping an Optical Micromanipulation, Denver, Proc. SPIE.

Multiple Optical Trapping in High Gradient Interference Fringes. SPIE conference San Diego 2006
Optical Trapping in High Gradient Interference Fringes. Solid State and Photonics Lab. Stanford University
Beam shaping for large assemblies of optical traps. Munich 2005