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

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