

From Certification to Craftsmanship: The Product Owner Gym at the Dutch Tax Administration
For Product Owners, gaining a certification has become standard practice in many organisations. Scrum, SAFe and other Agile frameworks are
Sarah Siebel-Janssen is an Agile Trainer, Management Consultant and mentor/coach for Scrum Masters, Product Owners, Agile Coaches, RTEs — and anyone ready to take their agile skills to the next level. Known for her sharp thinking, big heart and the right dose of Dutch directness, she helps teams and leaders work smarter, collaborate better and stay focused on what truly matters.
As a passionate Obeya Coach, Sarah helps organisations turn walls into conversations and strategy into action. Whether she is guiding leadership teams through their first Obeya setup or scaling the practice across departments, she brings structure, flow and visual clarity to even the most complex transformations. For Sarah, Obeya is more than a room — it is a mindset of alignment, transparency and continuous learning.
With a background spanning government to high-tech, Sarah combines agile expertise, systems thinking and psychological insight to drive real change. She is a certified SAFe Practice Consultant, Obeya Coach and co-trainer with Laurens Bonnema for Scrum.org, Scaled Agile and Obeya courses. You can also find her at conferences, sharing in-depth stories from practice — delivered with honesty, humour and the occasional sketch.
When she is not coaching or training, she is most likely enjoying time with her family, working on her first book or diving deep into her latest curiosity.


Geen trainingen gevonden.


For Product Owners, gaining a certification has become standard practice in many organisations. Scrum, SAFe and other Agile frameworks are


Why strong organisations manage value, not just prices In conversations with leaders about pricing, I keep hearing the same things.


Why many organisations do not lack strategy, but struggle to actually translate strategy into cohesive movement Virtually every organisation has