Siegfried D.-Head of Work Preparation
Check rate
Experience
Head of Work Preparation
Scheuerle/TII-Group
- Reorganization of work preparation (4 work preparation, 6 production control and 1 Lean employees)
- Optimization of SAP processes (PS/PP planning and control)
- Interface management (purchasing, production, sales, logistics)
- Maintenance of master data
Merger Consultant
Miltenyi Biotec B.V. & Co. KG
- Representing the interests of the Radolfzell site in the integration project for value-adding processes, including the description and processing of test cases in SAP as well as employee training
- Consulting the equipment production sites on standardizing production processes, including their mapping in SAP
- Definition and improvement of material master data in SAP (Master-Data-Management)
- Special production engineering topics
- Definition of material flows
- Post-merger support
Consultant for Value-Adding/Production Processes
Miltenyi Imaging GmbH
- Project management for the introduction of SAP/QM
- Project organization
- Requirements definition
- Implementation concept including further development
- Reorganization of quality documentation
- Structuring and organization of documents
- Creation of quality documents with the responsible departments
- Participation in the overall process evaluation and reorganization for development activities and production processes
- Special production engineering topics
Head of Work Preparation/Production Planning
Miltenyi Imaging GmbH
- Responsibility for work preparation and production planning
- Reorganization of the work preparation department
- Optimization of master data and processes in SAP
- Sales and preliminary planning
- Bills of materials and routings
- Capacity planning and work center hierarchies
- Definition of lot sizes for in-house and external procurement
- Development and implementation of concepts for detailed production planning and control, Lean management, KPI development, visualization and reporting
- Reorganization of the development process
Head of Production Planning, Fiber Composite Production
Pucaro GmbH (Hitachi Energy)
- Responsibility for planning for the new department
- Development and implementation of concepts for detailed production planning and control, Lean management, KPI development, visualization and reporting
- Optimization of master data & parameters in SAP
- Make-or-buy decisions
- Continuous coordination with sales and purchasing
Interim Management and Project Management
Self-employed
Project Management for Garage Park Development
Siegfried Dreher Verwaltungs GmbH & Co. KG
- Concept and planning
- Approval procedures
- Financing
- Rental
Production Manager
Leoni Draht GmbH
- Overall responsibility for production, scheduling, maintenance, logistics, and shipping with approx. 150 employees
- Budget responsibility: personnel costs approx. 11 Mio. Euro, operating costs approx. 4 Mio. Euro, investments 1,0 Mio. Euro
- Management of cross-functional projects with development, sales, process engineering, and production
- Introduction of Lean Management (KPI, SFM, TPM, KVP, BDE)
- Further development of management systems IATF 16949, EMAS
Head of Production Planning and Control
Pucaro GmbH
- Production control (optimization of work plans and structures)
- Key performance indicator system, lead time optimization
- Production capacity utilization (KPI) within and across plants
Sole Shareholder and Managing Director
Siegfried Dreher GmbH
- Contract manufacturing in the areas of turning, milling, honing, and grinding
- Management of 5 to 7 employees
Lean Manager
Kaltenbach GmbH & Co. KG
- Optimization of manufacturing, assembly, and logistics processes
- Demand Planning (project deadlines and production capacity utilization)
- Strategic procurement (make-or-buy, supplier development)
Production Planning Project Manager
SMS-Meer GmbH
- Production planning and realignment (investment of 30 Mio. Euro in new equipment; workload for 150 employees)
- Project management for technical and administrative projects (e.g., new manufacturing methods, implementation of KPI system)
Development Controller
BMW Group
- Realignment of personnel, cost, and investment controlling
Work Analyst (Work & Time Management)
BMW Group
- Time studies, personnel planning, process analysis & improvement
Quality Specialist (Central Quality Management)
BMW Group
- Project management for the implementation of SAP-QM
Project Manager
DORMA GmbH & Co. KG
- Project management for production reorganization and profile localization
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Manufacturing, Automotive, Professional Services, Biotechnology, Energy, and Real Estate.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Production, Project Management, Operations, Supply Chain Management, Finance, and Quality Assurance.
Summary
- More than 20 years of production experience in SMEs and corporations
- Management experience as managing director of a small company (7 employees), as well as management experience as production manager/plant manager with 150 employees
- Industries: automotive, mechanical and plant engineering, medical technology, paper manufacturing
- Production optimization using Lean and Six Sigma methods
- Realignment of a production site (complete renewal of machinery, investments of 30 Mio. Euro)
- Experience with management systems: IATF 16949, EMAS
- Lead auditor for ISO 9001 quality management, ISO 14001 environmental management, ISO 45001 occupational health and safety management
Skills
- Sap (Pp & Mm - Keyuser, Co & Ps - Anwender)
- Cockpit-Planung/Production By Gib - Anwender
- Ms-Office (Word, Excel, Powerpoint) - Keyuser
- Ms-Access – Anwender
Languages
Education
Fernuniversität Hagen
Diplom Kaufmann, Wirtschaftsinformatik und Operation Research · Business Administration · Hagen, Germany
Fachhochschule Furtwangen Abt. Schwenningen
Diplom Ingenieur (FH) Maschinenbau, Computer Aided Engineering (CAE) · Mechanical Engineering / Automation Engineering · Villingen-Schwenningen, Germany
Steinbeis-Schule Tuttlingen
Vocational college qualifying for university of applied sciences entrance qualification · Tuttlingen, Germany
Certifications & licenses
Umweltmanagementbeauftragter & -auditor (TÜV)
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Siegfried is based in Balgheim, Germany.
Siegfried speaks the following languages: German (Advanced), English (Intermediate).
Siegfried has at least 26 years of experience. During this time, Siegfried has worked in at least 16 different roles and for 13 different companies. The average length of individual experience is 2 years and 7 months. Note that Siegfried may not have shared all experience and actually has more experience.
Based on recent experience, Siegfried would be well-suited for roles such as: Head of Work Preparation, Merger Consultant, Consultant for Value-Adding/Production Processes.
Siegfried's most recent position is Head of Work Preparation at Scheuerle/TII-Group.
In recent years, Siegfried has worked for Scheuerle/TII-Group, Miltenyi Biotec B.V. & Co. KG, Miltenyi Imaging GmbH, Pucaro GmbH (Hitachi Energy), and Self-employed.
Siegfried is most experienced in industries like Manufacturing, Automotive, and Professional Services. Siegfried also has some experience in Biotechnology, Energy, and Real Estate.
Siegfried is most experienced in business areas like Production, Project Management, and Operations. Siegfried also has some experience in Supply Chain Management, Finance, and Procurement.
Siegfried has recently worked in industries like Professional Services, Biotechnology, and Manufacturing.
Siegfried has recently worked in business areas like Project Management, Production, and Supply Chain Management.
Siegfried holds a Bachelor in Mechanical Engineering / Automation Engineering from Fachhochschule Furtwangen Abt. Schwenningen.
Siegfried has 6 certificates. Among them, these include: Sicherheitsfachkraft (SIFA), Umweltmanagementbeauftragter & -auditor (TÜV), and Qualitätsauditor ISO 9001 (TÜV-Rheinland).
Siegfried is immediately available full-time for suitable projects.
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Calculated based on our freelancers’ daily rates as of 6 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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