Siegfried Dreher - Head of Production Planning

Recommended expert

Balgheim, Germany

Experience

Sep 2024 - Mar 2025

7 months

Germany

Head of Production Planning

Scheuerle/TII-Group

Reorganized production planning (4 planning staff, 6 control staff, and 1 Lean specialist)
Optimized SAP processes (PS/PP planning and control)
Managed interfaces (purchasing, production, sales, logistics)
Maintained master data

Jul 2023 - Feb 2024

8 months

Bergisch Gladbach, Germany

Merger Consultant

Miltenyi Biotec B.V. & Co. KG

Represented the Radolfzell site's interests in the integration project for value-added processes, including defining and running SAP test cases and training staff
Advised device production sites on standardizing production processes, including SAP implementation
Defined and improved material master data in SAP (master data management)
Handled special production engineering topics
Defined material flows
Provided post-merger support

Nov 2022 - Jun 2023

8 months

Radolfzell, Germany

Value and Production Process Consultant

Miltenyi Imaging GmbH

Led the SAP/QM implementation project
Project organization
Defined requirements
Developed and enhanced implementation concepts
Reorganized quality documentation
Structured and created documents
Created quality documents with the responsible departments
Contributed to company-wide process evaluation and reorganization for development activities and production workflows
Handled special production engineering topics

Apr 2022 - Oct 2022

7 months

Radolfzell, Germany

Head of Production Planning/Production Scheduling

Miltenyi Imaging GmbH

Responsible for production planning and scheduling
Reorganized the production planning department
Optimized master data and processes in SAP
Demand and preliminary planning
Bills of materials and work instructions
Capacity planning and workplace hierarchies
Defined lot sizes for in-house and external procurement
Developed and implemented concepts for detailed production planning and control, Lean management, KPI development, visualization, and reporting
Reorganized development processes

Sep 2021 - Jan 2022

5 months

Roigheim, Germany

Head of Production Planning for Composite Production

Pucaro GmbH (Hitachi Energy)

Responsible for planning the new department
Developed and implemented concepts for detailed production planning and control, Lean management, KPI development, visualization, and reporting
Optimized master data and parameters in SAP
Made make-or-buy decisions
Coordinated continuously with sales and purchasing

May 2021 - Present

4 years 9 months

Interim management and project management

Self-employed

May 2021 - Aug 2021

4 months

Balgheim, Germany

Project manager for garage park implementation

Siegfried Dreher Verwaltungs GmbH & Co. KG

Concept and planning
Approval process
Financing
Rental

Jan 2019 - Apr 2021

2 years 4 months

Weissenburg in Bayern, Germany

Production manager

Leoni Draht GmbH

Overall responsibility for production, scheduling, maintenance, logistics, and shipping with approx. 150 employees
Budget responsibility: personnel costs approx. 11 million euros, material costs approx. 4 million euros, investments 1.0 million euros
Lead of cross-functional projects with engineering, sales, process engineering, and production
Implementation of lean management (KPI, SFM, TPM, KVP, BDE)
Further development of management systems IATF 16949, EMAS

Nov 2016 - Dec 2018

2 years 2 months

Roigheim, Germany

Head of production planning and control

Pucaro GmbH

Production control (optimization of work plans and structures)
KPI system, lead time optimization
Production capacity utilization (KPI) within and across plants

Apr 2016 - Dec 2018

2 years 9 months

Balgheim, Germany

Sole shareholder and managing director

Siegfried Dreher GmbH

Contract manufacturing in turning, milling, honing, and grinding
Management of 5 to 7 employees

Feb 2014 - Oct 2016

2 years 9 months

Lörrach, Germany

Lean Manager

Kaltenbach GmbH & Co. KG

Optimization of manufacturing, assembly and logistics processes
Demand planning (project schedules and production capacity utilization)
Strategic procurement (make-or-buy, supplier development)

Apr 2009 - Jan 2014

4 years 10 months

Mönchengladbach, Germany

Project Manager Production Planning

SMS-Meer GmbH

Production concept and restructuring (investment of 30 million euros in new facilities; workload of 150 employees)
Project management for technical and administrative projects (e.g. new manufacturing methods, introduction of a KPI system)

Sep 2005 - Mar 2009

3 years 7 months

Munich, Germany

Development Controller

BMW Group

Realignment of personnel, cost and investment controlling

Nov 2003 - Aug 2005

1 year 10 months

Landshut, Germany

Work Analyst (Work & Time Management)

BMW Group

Time studies, workforce planning, process analysis & improvement

Feb 2002 - Oct 2003

1 year 9 months

Dingolfing, Germany

Quality Specialist (Central Quality Management)

BMW Group

Project management for SAP QM implementation

Jan 2001 - Dec 2001

1 year

Suzhou, China

Project Manager

DORMA GmbH & Co. KG

Project leadership for production reorganization and profile localization

Summary

Over 20 years of production experience in SMEs and corporations
Leadership experience as managing director of a small company (7 employees) and as production/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 machinery renewal, investments of 30 million euros)
Experience with management systems: IATF 16949, EMAS
Lead auditor for ISO 9001 quality management, ISO 14001 environmental management, ISO 45001 occupational safety management