We are constructing the new S4 line for you

Amina Karam is the public face of the S4, and she is just as international as Germany's main port city. She joined the project as General Project Director on 1 February 2021. Originally from Morocco, she is now back in Germany after spending several years outside the country, her adopted home. Not only is she fluent in German, Arabic, French and English, but she is also a communicative and hands-on manager who is keenly aware of how important the new S4 is for the entire Hamburg region.

Overall Project Management

Amina Karam
General Director S-Line S4 &
General Overhaul Hamburg-Lübeck

"I want to strengthen the partnership between our project team, the central and state governments, the participating construction companies and the public so that, together, we can focus on the S4 project and successfully achieve our collective goals."

We are the S4-Team

Working together for a common goal – the construction of the new line S4. This page names the key members of the project team.

Peter Mantik is responsible for the S4 project's PR work. You can contact him by e-mail or phone at +49 (0) 40 3918 4449.

Executive Departments of the General Director

Assistance to the General Director

Katrin RichterAssistant to the General Director & Communication Specialist

Change Management & IPA Coaching

Human Resources Resort

Communication and Press

Pia HaskampTeamlead
Stakeholdermanagement

Elena AhrensSpecialist
Stakeholdermanagement

Lisa SchallwigSpecialist
Stakeholdermanagement

Peter MantikPress Officer Infrastructure Communications

Michaela KlauerInfrastructure Communications

Building Approval Procedure & Common Law Affairs

Nic WetzelTeamlead
Area & Property Management
(Section 2 & 3)

Volker-Roger SchweitzerArea & Property Management
(Section 1)

Sophie SchulzeJunior
Area & Property Management
(Individual measures)

Management of Organisational Units and Staff

Kerstin BernauHead of Technical Department /
Back Office

Kerstin ThomsenHead of
Construction Section 1 and 3

Cassandra MöhringHead of Construction Operations and Commissioning

Armin IsmicHead of Railway Engineering
(Superstructure / Railway,
Cable Ungerground Engineering, Environment)

Mohamed RafikHead of Rail Technology (Equipment Engineering, LST & ETCS

Elnaz RanjgariHead of Cost-Controlling & Riskmanagement

Construction Operation and Commissioning

Feodor KillikhProject Engineer Construction Commissioning

Risk Management & Cost-Controlling

Hubert JoschDepartment Manager
Risk Management & Cost-Controlling

Severin BantleProject Engineer
Risk Management & Cost-Controlling

Mahnaz PayandehProject Engineer
Risk Management & Cost-Controlling

Team Assistance

Project Management for Construction Sections

Construction Section 1

Janina TrampfDepartment Manager
Structural Engineering & Station Construction

Maximilian BergDepartment Manager
Structural Engineering & Station Construction

Mohamed EleskandranyProject Engineer
Structural Engineering & Station Construction

Fahad SeemabProject Engineer
Structural Engineering & Station Construction

Ahsen-Nur EssizProject Engineer
Structural Engineering & Station Construction

Amina Benbetka Project Engineer Quality & secondary Construction & Supervision

Construction Section 2

Mohamed Nadjib KhelloufDepartment Manager
Structural Engineering & Station Construction

Ahmed Abdelhamid Taha AliProject Engineer
Structural Engineering & Station Construction

Karine Audrey NnomokoProject Engineer
Structural Engineering & Station Construction

Omar AbramProject Engineer
Structural Engineering & Station Construction

Construction Section 3

Petra NienaberDepartment Manager
Structural Engineering & Station Construction

Torben WestermannProject Engineer
Structural Engineering & Station Construction

Jana RöhrsProject Engineer
Structural Engineering & Station Construction

Jan DombrowskiProject Engineer
Structural Engineering & Station Construction

Rail Technology

Tino DannerDepartment Manager
Electromechanical Engineering

Dustin HeußmannDepartment Manager
Electromechanical Engineering

Christian BruhnProject Engineer
Rail Technology

Johannes VoigtProject Engineer
Rail Technology

Max LangProject Engineer
Rail Technology

Metin Erkan Project Engineer
Electromechanical Engineering & Engineer Control-Command

Tim BurmesterProject Engineer
Electromechanical Engineering
50Hz

Mohamed HassanProject Engineer Upper Structure

Pipeline & Cable Crossings

Arber BytyqiProject Engineer
EKrG Measures and Line Crossings

Laurenz KempaProject Engineer
EKrG Measures and Line Crossings

Amir MujagicProject Engineer
EKrG Measures and Line Crossings

Contract and claims management

Dominik GrohTeamlead
Contract &
Claims Management

Karl-Jürgen KnothProject Risk Analysis
& Contracts
(on behalf of DB)

Horst RöttgenContract &
Claims Management
(on behalf of DB)

Technical Department / Back Office

Kirsten LangeHead of
Technical Department HLK & ABS Pinneberg-Elmshorn

Stella TranDepartment Manager Project Planning, Procuring and Allocation

Fabián MarínDepartment Manager Project Planning

Marc HechtProject Engineer Technical Department

Cornelia EggersProject Engineer
Documentation Management

Sümeyye BatarayProject Engineer
Project Planning

Nawid BarakProject Engineer
Project Planning

Environment, Geology and Waste Disposal Department

Financial Management Team

Matthias OettingHead of Financial
Project Management

Insa Halupczok Department Manager Financial Project Management

Michael SalchowFinancial Project Management

Swantje HochreinerFinancial Project Management

Jasper SchulzFinancial Project Management

Sandra S. LopezFinancial Project Management

Niklas JägerFinancial Project Management

Patrick HankeFinancial Project Management

Juliane GiehlerFinancial Project Management

Barbora PaulsenFinancial Project Management

Construction & Supervision

Khalid El-DawiConstruction Office Manager

Stefan PetersenHead Construction Supervisor
E-Technology

Torben OeserHead Construction Supervisor KIB

Dorian HampelHead Construction Supervisor Environment

Leonard-Vincent BrüningHead Construction Supervisior LST

Fritz TimmConstruction Supervision E-Technology

Christian Heinz-Schulz — Christian Heinz SchulzConstruction Supervision LST

Daniela MorenoConstruction Supervision Top-Structure

Hans DietrichConstruction Supervision Environment

Simon WüstefeldConstruction Supervision Geotechnics

Dr Christine BahrWaste Management
(Competenza GmbH – on behalf of DB)

Students working on the S4 project

Kilian SchulzeDual Student
Electromechanical Engineering

Our S4 project partners

The S4 project is a joint undertaking between the German states of Hamburg and Schleswig-Holstein.

Different ministries and public bodies in these states oversee the building of the new suburban rail line to Bad Oldesloe. We have listed the main contacts here.

Hamburger's authority for Transport and New Mobility (BVM)Known as BVM (Behörde für Verkehr und Mobilitätswende), Hamburg's authority for transport and new mobility makes sure the city stays mobile. It is helping to finance the new S4. BVM representatives are also involved in the decision-making process because their goal is to strengthen the Hamburg region's transport network.More information

Schleswig-Holstein's Ministry of Economic Affairs, Transport, Employment, Technology and TourismThe state's transport ministry co-finances the construction of the new S4 line and is involved on a number of decision-making levels. The S4 will strengthen transport links between Schleswig-Holstein and Hamburg.More information

Connecting Europe FacilityThe EU's Connecting Europe Facility co-finances the planning phase of the S4. This EU fund supports strategic transport projects across Europe with the goal of promoting integrated and sustainable mobility.More information

Hamburger VerkehrsverbundKnown as hvv, Hamburg's transport association will assume responsibility for operating the S4 line once building work finishes. For this reason, it is also involved in the project's planning and construction.More information

S-Bahn HamburgS-Bahn Hamburg will be responsible for S4 services once the line opens.More information

Hochbahn HamburgHamburger Hochbahn AG is part the city's hvv transport association, running the city's metro system and the majority of its buses.More information

NAH.SHNAH.SH GmbH manages rail transport in Schleswig-Holstein on behalf of the state government.More information

DB Engineering & ConsultingDB Engineering & Consulting is involved in the S4 planning process in its capacity as Deutsche Bahn international specialist for engineering and consulting.More information

Handelskammer HamburgThe Handelskammer Hamburg represents the interests of 170,000 companies and is a service provider for Hamburg's business community. The Handelskammer Hamburg sees the S4 as a elementary component of the mobility turnaround and urgently necessary for the future of the business location Hamburg.Mehr Information

Putting plans into action

First, all measures have to be planned and approved. Then we can start the work of putting the plans into action.

To build the new S4 line, we are working with several construction companies that have unrivalled experience and expertise.

Depenbrock Bau GmbH & Co. KGResponsible for track substructure and superstructure, the permanent way and their construction.More information

DVA Deutsche Verkehrs-Assekuranz-Vermittlungs-GmbHResponsible for the project's insurance.More information

Eiffage-Infra-Nordwest GmbHResponsible for site access roads and construction site facilities.More information

HC Hagemann GmbH & Co. KGResponsible for a temporary bridge.More information

Matthäi Bauunternehmen GmbH & Co. KG
Matthäi Trimodalbau GmbHResponsible for the rail overpass at Hammer Strasse, site access roads and construction site facilities. More information

Schweerbau Gmbh & Co. KGResponsible for track substructure and superstructure and the permanent way.More information

Siemens Mobility GmbHResponsible for command and control technology.More information

SPITZKE SEResponsible for underground cable installation, the third rail and the construction of Bovestrasse station.More information

Ed. Züblin AGResponsible for the rail overpass and station at Wandsbek Rathaus and for the Schlossgarten rail overpass.More information

Strabag Rail GmbHResponsible for noise barriers.More information

EUROVIA GmbHResponsible for noise barriers.More information

SafeLane GlobalResponsible for explosive ordnance detectionMore information

Otto Wulff Bauunternehmung GmbHResponsible for Auxiliary bridge over the freight bypass. Mehr Informationen

Working together for a common goal

A project like the new S4 line between Hamburg and Bad Oldesloe needs to involve a wide variety of people if it is to be a success on every front. These people include planning experts, environmental engineers, construction managers and communications specialists, not to mention employees at external project partners and construction firms. Though we come from very different professional backgrounds, we all share one goal: creating the new S4 line.

If you want to join the S4 team at DB InfraGO AG,
just get in touch with our recruiter Katharina Riethmüller by e-mail.

Alternatively, take a look at our careers portal.

DB careers portal

We are constructing the new S4 line for you

Overall Project Management

Amina Karam
General Director S-Line S4 &
General Overhaul Hamburg-Lübeck

We are the S4-Team