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Joost Balthazar Onderwaater

- Sales & Marketing Professional -


I 'm an ambitious and driven Sales and Business Professional, with over twenty years managerial and client handling experience in the ICT, Food & Fashion segment (wholesale & retail).  A bilingual, effective communicator, who combines strong industry knowledge with excellent negotiation skills with a  proven track record of identifying and maximizing sales opportunities and delivering successful results in high-pressured, target-based environments. 

Work experience

C.V. Paperclip Retail Solutions


Retailers should embrace technology to drive success. In a world where more and more shopping is conducted not only online, but on mobile and apps, it's important to get exactly what you need. There are many developments that you as a retailer want to quickly respond to. The diversity and maintenance of systems requires a lot from the IT department, which means there is often little room for innovation. With Paperclip Retail Solutions we offer a software and hardware total solution that fits your needs perfectly.

Responsible for:

  • Sales & Marketing
K3 Retail B.V.

Sales New Business -  Retail & Wholesale

K3 Retail – founded in 1985 – provides innovative store solutions to retailers in fashion, footwear, sports retail & department stores and is a leading Point-of-Sale supplier.

Responsible for:

  • Manage New Business Sales Nothern Europe
  • Retail & Wholesale
  • Large Key-Accounts
INsty!e Fashion Group B.V.

Founder & Managing Director

INsty!e Fashion Group BV, a Dutch distributor with a passionate eye for fashion, was founded by Joost Balthazar Onderwaater in 2009.

Responsible for:

  • Manage International Agents & Distributors for wholesale           
  • Marketing & Sales: key accounts retail/international Fashion Fairs: 
  • Branding: Labels/Hangtags/Packaging
  • Pricing: Target Profit Margin/landed Price/Wholesale Price/Incoterms    
  • Shipment & distribution: warehousing/transportation/insurance                                                                                       
Ultimo Software Solutions B.V.
 2008 2013

International Sales Manager

Ultimo Software Solutions is a supplier of flexible software for effective maintenance and facility management.

Responsible for:

  • New Business Sales Northern Europe
  • Managing Sales Team
  • New Office Belgium                                                                                                                                                
Datastream Systems B.V./Infor

Sr. Key Account Manager

Infor EAM (Enterprise Asset Management) enables manufacturers, distributors, and services organizations to save time and money by optimizing maintenance resources, improving equipment and staff productivity, increasing inventory efficiency, and strengthening their ability to collect on warranty-related claims.

Responsible for:

  • Sales New Business Benelux


Sales & Marketing
Excellence sales & marketing skills
IT & Fashion Retail Network

Proven IT &  Fashion Retail network

Effective use of communication and understanding client’s needs & expectations

Able to negotiate skillfully: knows how and when to make compromises


Microsoft 365  Business: Word, Excel, PowerPoint, OneDrive, OneNote, SharePoint,  Outlook - NAV - Dynamics CRM - LS Retail- LS One -  Pebbelstone Fashion 365 - Power BI- AX is Fashion - RetailVision Enterprise - POSFlow - OrderWriter - DDD POS - AFAS - Apple/Windows -  Photoshop & Illustrator  - Shopmaster - WordPress - WIX - OnePOS - ShopIT -

Fluent speaking and writing
Fluent speaking and writing


HES Rotterdam

Bachelor of Commerce & Marketing (B Comm)

Midveld College

VWO - pre-university education


Jongeneelen Photography

Real Estate Photography & Post-processing

  • Real Estate styling
  • Indoor and outdoor photos
  • Altitude photography
YEARTH Academy


Business Coaching  specifically intended for entrepreneurs and freelancers.

Dutch school for Photography

Vocational training Photography

DOOR Training & Coaching


Customer oriented sales | Commercial negotiation | Account Management                     
Paul R. Wineman (USA)


Negotiation training | Solution selling


  • Photography
  • Running Marathons
  • Mountainbiking