Soussan began her career at
Renault in Paris as an engineer in engine research and development in 1994. From 1997 onwards, she worked in various positions at
Siemens Automotive/Siemens VDO, first as project director for gasoline and diesel systems for Ford projects, then as managing director for diesel systems for the Renault-Nissan business unit, a position she initially kept after Siemens sold its Siemens
VDO division to
Continental.
Siemens, 2009–2021 In 2009, Soussan returned to
Siemens as Head of Strategy and Marketing for Building Automation for the
Building Technologies Division in Switzerland. In 2011, she became Vice President Sustainability and Energy Management in the same division before moving to the Mobility Division of Siemens in 2013, first as Vice President Commuter and Regional Trains, then as CEO of the Rolling Stock Business Unit in 2015 and as Co-CEO of
Siemens Mobility, a company offering transportation solutions, from 2017 onwards.
dormakaba, 2021–2022 In April 2021, Sabrina Soussan left Siemens to succeed
Riet Cadonau as CEO at
dormakaba Holding AG, a global group in the access industry based in Switzerland, as of 1 April 2021. She held this position until 31 December 2021.
Suez, 2022–present In 22 August Soussan was appointed chairman and CEO of
SUEZ SA. She joined about a year after the company was merged with rival
Veolia following a much-publicized hostile takeover bid. ==Other activities==