Jörg Stermann-Managing Director

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Experience
Managing Director
JS CORE UG
- Interim management and management consulting with a focus on sales, brand management, internationalization, business development, and market entry strategies for international consumer goods and trading companies.
Member of the Supervisory Board
HARTMANN TRESORE AG
Chief Executive Officer
Sieper GmbH
- Overall responsibility for the strategic and operational management of the group of companies with the traditional brands Siku and WIKING, including brand management, product management, international sales control, license management, supply chain, procurement, as well as the further development of national and international trading and sales partners
Managing director for the following companies:
- Sieper GmbH, Lüdenscheid
- Wiking Modellbau GmbH & Co. KG, Lüdenscheid
- Sicom GmbH, Lüdenscheid
- Tim Toys Ltd., Hong Kong
- Sieper France SARL, France
Operational areas of responsibility within the group of companies
- Overall responsibility for the national and international sales organizations
- Leadership of the marketing, product management, and category management areas of the international brands Siku and WIKING
- Responsibility for the international licensing business and license-based product portfolios
- Management of e-commerce and multichannel sales activities
- Managing director responsibility for Sicom GmbH (creative and communications agency)
Strategic leadership and focus areas
- Development and implementation of international growth, sales, and market development strategies with full responsibility for results
- Strategic and operational leadership of international sales organizations as well as complex retail and key account structures
- Expansion and further development of global distribution and sales channels in established and new markets
- International brand, category, and portfolio management with a focus on sustainable sales and profit growth
- Management of profitability, trade investments, pricing strategies, and commercial performance
- Negotiations at managing director and board level with international retail organizations, distributors, and strategic partners
- Identification and development of new business areas, market potential, and international growth opportunities
- Securing the achievement of sales, margin, and result targets as well as sustainable company value growth
Spokesperson of the management board of Sieper GmbH (2021–2025)
- Coordination of the group-wide strategic direction as well as representation of the group of companies to shareholders, advisory boards, and external partners
On the board
Haus & Grund Herford e.V.
Head of Sales and Marketing / Authorized Signatory
BURG-WÄCHTER KG
- Responsibility for national and international sales and marketing activities in the DIY, specialist retail, and wholesale environment, including product range development, brand management, trade marketing, category management, and cooperation with buying groups and leading retail organizations
Leadership and supervision of:
- Sales managers of various sales groups, key account managers, field sales staff, sales managers for contract business, sales management assistants, external service staff (disposition / merchandisers)
Technical leadership of the marketing team.
Strategic direction of the brand, country marketing, and product marketing.
Revenue volume >85 million €
Managing Director
STERAH International
- International sales and purchasing projects, supplier management, purchasing strategies, risk management, and target costing China projects
Projects:
- Strategic project support for AEMtec GmbH, Berlin
- Profashion International, Bielefeld
Head of Purchasing Group / Buy-Out Business
Einhell Germany AG
- Technical and disciplinary responsibility for group purchasing in Germany, China, and IPO Vietnam
- Realization and coordination of purchasing targets for the sales departments in the DIY retail and discount sectors
- Volume >500 million USD
Projects:
- Founding of IPO Vietnam
- Revision of framework agreements, bonus agreements, and cost saving programs
Head of Department Buy-Out Business / Trading Goods Asia
Bosch Power Tools China Co., Ltd.
- Trading goods management for OEM / ODM products
- Focus on stationary and handheld power tools, measuring tools, and garden tools for specialist retail and DIY sectors
- Cooperation with marketing and sales departments for the Bosch Blue, Bosch Green, Skil, and Dremel brands
- Employee training, reporting to management
- Volume >120 million USD
Projects:
- Building up the newly founded specialist department in China
- Introduction of the strategy pyramid, SSC (Score Cards)
- PDP (Product Development Process)
Central Group Lead Sales and Marketing
Robert Bosch GmbH, Power Tools Division
- Focus: service purchasing in the areas of sales, marketing, and advertising
- Member of the Global Purchasing Management Team (Sales)
- Volume >50 million euros
Projects:
- Introduction of the "Shop in Shop" system in the DIY sector in Europe
- Setup of external call centers in Germany
- Member of the central GPMT team (Sales)
- Introduction of the internal workflow IT system (E-Works)
Regional Sales Manager
Robert Bosch GmbH, Power Tools Division
- Sales channels specialist retail and DIY sectors in Germany
- Focus: achieving revenue and sales targets through systematic DIY and key account management, trade marketing, inside sales, and field sales
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Manufacturing, Real Estate, Retail, and Fashion.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Sales, Marketing, Strategy, Procurement, Operations, and Product Development.
Summary
Internationally experienced sales manager and managing director with over 30 years of leadership and sales experience in international B2B, brand, and trading companies.
Many years of responsibility for the strategic development of international markets and sales organizations, with a special focus on Asia.
Several years of professional work and life in Hangzhou, China, for Robert Bosch GmbH as well as extensive hands-on experience in building and developing business activities and international structures.
Strong knowledge of the cultural, structural, and sales-related specifics of China and other international markets.
Entrepreneurial leader with a strong market and customer focus as well as many years of C-level experience.
Skills
- Ms Office
- Sap Business One
- Navision
- Proalpha
Languages
Education
Dipl.- Business Economist (BI) · Business Administration · 1.4
Bielefeld University of Applied Sciences
Electrical Engineering, Information Processing · Bielefeld, Germany
Vocational College Löhne
University Entrance Qualification / Entrance Qualification for Universities of Applied Sciences · Löhne, Germany · 2.2
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jörg is based in Bünde, Germany.
Jörg speaks the following languages: German (Native), English (Advanced), Chinese (Elementary).
Jörg has at least 32 years of experience. During this time, Jörg has worked in at least 9 different roles and for 9 different companies. The average length of individual experience is 3 years and 3 months. Note that Jörg may not have shared all experience and actually has more experience.
Based on recent experience, Jörg would be well-suited for roles such as: Managing Director, Member of the Supervisory Board, Chief Executive Officer.
Jörg's most recent position is Managing Director at JS CORE UG.
In recent years, Jörg has worked for JS CORE UG, HARTMANN TRESORE AG, Sieper GmbH, and Haus & Grund Herford e.V..
Jörg is most experienced in industries like Manufacturing, Real Estate, and Retail. Jörg also has some experience in Fashion.
Jörg is most experienced in business areas like Sales, Marketing, and Strategy. Jörg also has some experience in Procurement, Operations, and Product Development.
Jörg has recently worked in industries like Real Estate, Retail, and Manufacturing.
Jörg has recently worked in business areas like Marketing, Sales, and Strategy.
Jörg attended education in Business Administration.
Jörg is immediately available full-time for suitable projects.
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Calculated based on our freelancers’ daily rates as of 24 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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