Our Team

Daniela Kaina

Secretariat, Accounting

Daniela Kaina is leading the Office Secretariat for 18 years. Daniela is responsible for the secretariat services, office organization, financial accounting and she is the central contact point for the entire team.

Silvia Sippel

Secretariat, Payroll Department

+49 2129 9366 0

mail@ip-siebel.de

Silvia Sippel supports the Secretariat and is responsible for the payroll. Silvia is working for IP Siebel for the past 25 years.

Jennifer Bauer

M.Sc. REM+CPM, B.Sc.Civil Eng.

+49 2129 9366 25

bauer@ip-siebel.de

Jennifer Bauer is working at IP Siebel for 7 years. As a construction draftswoman, a civil engineer and a master of science real estate management + construction project management, she is responsible for project management, office management and quality managenent in the architectural office IP Siebel. Previously, she worked as a construction manager for our office for 3 years. In addition, Mrs. Bauer maintains the homepage and has a DVP certification.

Burkhard Weickhmann

Dipl.-Ing. Architect AKNW

+49 2129 9366 17

weickhmann@ip-siebel.de

Burkhard Weickhmann has 20 years of work experience in the project development, planning and site management and works for 17 years as a project manager in the office IP Siebel. He is responsible for the control of the various projects, from the first draught, design, planning, to advertising and site management.

Claudia Spranger

Construction Draftswoman

+49 2129 9366 18

spranger@ip-siebel.de

Claudia Spranger is working in a team as a construction draftswoman in the draught planning, approval planning, implementation planning and detailed planning. Claudia has 25 years of work experience in particular in the urban land-use planning through her past experience in a town planning office and works for 8 years in the office IP Siebel.

Kemel Yakhlef Moh

Construction Draftsman Trainee

+49 2129 9366 23

yakhlef@ip-siebel.de

Kemel Kakhlef Moh is a construction draftsman apprentice and is in his 1st practical training year. His construction site practise is accompanied in the Dusseldorf BZB institute. He works in a team with architects and construction draftsmen.

Peter Baer

Dipl.-Ing. Architect AKNW

+49 2129 9366 15

peter.baer@ip-siebel.de

Peter Baer has more than 20 years of professional experience in project development, planning and construction management. He is working as a project manager in the office IP Siebel for 11 years. Peter is responsible for the controlling of various projects, from initial concept, design, planning, to tendering and construction supervision.

Andreas Fligge

Construction Draftsman

+49 2129 9366 19

fligge@ip-siebel.de

Andreas Fligge works as a draftsman in the design, approval, execution, and detailed planning. He supports the construction management in tendering and construction supervision. Andreas has more than 30 years of professional experience and works for 8 years in the office IP Siebel.

Filip Wenzel

Construction Draftsman Trainee

+49 2129 9366 23

wenzel@ip-siebel.de

Filip Wenzel is a construction draftsman apprentice and is in his 1st practical training year. His construction site practise is accompanied in the Dusseldorf BZB institute. He works in a team with architects and construction draftsmen.

Ali Eskeif

B.Sc. Bauing.

+49 2129 9366 28

eskeif@ip-siebel.de

Ali Eskeif is working as a site manager of the architect’s office IP Siebel since September 2019. He is in the last semester of his master’s degree in civil engineering at the University of Duisburg – Essen. Mr. Eskeif looks after various projects from the detailed planning, AVA and local object supervision in the architect’s office IP Siebel.

Johannes Lorenzen

Site Management, Structural Engineer

+49 2129 9366 24

lorenzen@ip-siebel.de

Johannes Lorenzen works for 23 years in the site management of the architect’s office IP Siebel. With his more than 35 years experience as a carpenter and later as a structural engineering engineer, he looks after various projects from the detailed planning, AVA, local object supervision up to the last final calculation and fault removal in the architect’s office IP Siebel.

Harald Hänsel

Dipl.-Ing. Bauing (FH)

+49 2129 9366 0

haensel@ip-siebel.de

Harald Hänsel works since September 2019 in the construction management of the architectural office IP Siebel. With his many years of experience as a site manager in property supervision, he is responsible for various projects for our office.

Mercan Cuma

Bachelor of Arts

+49 2129 9366 23

cuma@ip-siebel.de

Mercan Cuma is working as a project manager for Ingenieurplan Siebel since June 2019. She is responsible for the control of various projects from the first draft, the design and the planning. In her team, Mercan Cuma coordinates the integration of all those involved in the construction in all phases.

Chantal Wardenga

Construction Draftswoman

+49 2129 9366 21

wardenga@ip-siebel.de

Chantal Wardenga has been working as a draftswoman for design, approval, execution and detail planning for a year. Previously, she learned the profession of draftswoman at Ingenieurplan Siebel in a three-year training.

David Niemietz

B.Sc. Architect

+49 2129 9366 14

mail@ip-siebel.de

David Niemietz has been working for IP Siebel for 3 years. At the moment he is doing his Master of Science in Architecture at RWTH Aachen University.