Team
As employees, we are committed to working with great joy and satisfaction. As a company, we endeavor to make sure that we are doing everything possible to complete the project in line with Client’s expectations.
Wolfgang Häner
Director
+41 (0)61 556 15 51 (phone)
+41 (0)79 743 94 92 (mobile)
wolfgang.haener(a)4e-eng.ch
Peter Lützelschwab
Project manager / process engineering
+41 (0)79 281 06 05 (mobile)
peter.luetzelschwab(a)4e-eng.ch
Severin Obertüfer
IH-Management Consultant
+41 (0)61 556 15 51 (phone)
+41 (0)79 324 34 43 (mobile)
severin.obertuefer(a)4e-eng.ch
Stéphane Wolfer
maintenance planner
+41 (0)61 556 15 51 (phone)
+41 (0)61 696 23 08 (phone)
+41 (0)76 702 26 41 (mobile)
stephane.wolfer(a)4e-eng.ch
stephane.wolfer(a)novartis.com
Hermann Müller
Project engineer
+41 (0) 61 556 15 51 (phone)
+49 (0) 176 99082933 (mobile)
hermann.mueller(a)4e-eng.ch
René Leschnewski
construction manager
+41 (0)79 711 10 97 (mobile)
rene.leschnewski(a)4e-eng.ch
rene_udo.leschnewski(a)novartis.com
Florim Serifi
CAD manager
+41 (0) 61 556 15 51 (phone)
+41 (0) 76 245 05 78 (mobile)
florim.serifi(a)4e-eng.ch
Andrea Schaub-Doess
commercial clerk
+41 (0)61 556 15 51 (phone)
+41 (0)76 525 07 09 (mobile)
andrea.schaub-doess(a)4e-eng.ch
Bertrand Litzler
Project Manager Automation
+41 (0)61 556 15 51 (Telefon)
bertrand.litzler(a)4e-eng.ch
bertrand.litzler(a)roche.com
Daniel Di Criscio
Site Engineer Automation/Machanical
+41 (0)61 556 15 51 (Telefon)
+41 (0)76 474 94 92 (Mobile)
daniel.di-criscio(a)4e-eng.ch
daniel.di_criscio(a)novartis.com
Manfred Giltjes
Process Engineer
+41 (0)61 556 15 51 (Telefon)
+41 (0)56 616 87 14 (Telefon)
manfred.giltjes(a)4e-eng.ch
manfred.giltjes(a)dottikon.com
Raphael Krättli
Project / Chemical Engineer
+41 (0)61 556 15 51 (Telefon)
+41 (0)76 588 44 87 (Mobile)
raphael.kraettli(a)4e-eng.ch
raphael.kraettli(a)partners.basf.com
Scott Shaw
Project / Process Engineer
+41 (0)61 556 15 51 (Telefon)
+44 7845 587492 (Mobile)
scott.shaw(a)4e-eng.ch
scott.shaw(a)lonza.com
Benjamin Senn
Mechanical operating technician
+41 (0) 61 556 15 51 (Phone)
+41 (0) 79 596 15 58 (Mobile)
benjamin.senn(a)4e-eng.ch
benjamin.senn_ext(a)novartis.com