About Us


The founder of the Diamond Quality Services, Jan Hintze, has more than 24 years experience in her field.  She holds certifications as a Lean Six Sigma Black Belt (CLSSBB), a Quality Engineer (CQE) and Quality Auditor (CQA).  Following graduation from Valparaiso University as a Mechanical Engineer, Jan has held various positions in Quality Engineering, Quality Management and Production / Process Management through the course of her career.  Her experience includes more than 10 years in the Medical Device Industry, with the balance split between the Defense and Commercial industries. 

Jan is a disciplined problem solver that has led teams throughout her career.   Using various tools such as Design of Experiments, Value Stream Maps, Control Charts, Fishbone Diagrams, Hypothesis Testing, Failure Mode and Effects Analysis, among others, she had led teams to improve yield, reduce cycle time and improve customer satisfaction, all adding up to significant savings for the company.  She has been a Quality / Design Assurance contributor to product development teams, bringing new product ideas from Concept through Design Verification and Validation to Final Release to the customer.

In her free time, she has used her discipline and work ethic to achieve the level of 2nd Degree Black belt in Karate and has been one of the top black belt competitors in the Twin Cities for the past three years.   She has also held multiple officers' positions in Brave Hearts Toastmasters, most recently leading the 3 year club to "Select Distinguished" status as the club President.  She has achieved the level of Advanced Leader and Competent Communicator within Toastmasters, an internationally renowned organization.

Always looking forward to the next challenge, Jan welcomes the opportunity to help improve your bottom line.