Meet the Mastering Agility Team

Sander Dur is a Professional Scrum Trainer at, podcast host of Mastering Agility, Professional Scrum Master and Lead Agile Consultant, and trainer at Xebia. Besides this, he’s an avid writer for Mastering Agility on, the blogs, and his upcoming book. Sander is a frequent speaker at conferences at meetups. Sander has a major passion for the human side in complex domains. Ensuring a high level of psychological safety, therefore, is a critical part of his work. Organizations in complex domains can only survive when innovating. Innovation can only take place with the right balance between low social friction and high intellectual friction. While most organizations now understand how to apply Agile frameworks, they struggle with the delivery of value. Psychological safety is the next step in this evolution and Sander has a huge drive to help organizations reach that step.

Sander is enthusiastic, open-minded, and ambitious. He finds interpersonal relationships and intrinsic motivations very important in team dynamics. Besides his work, Sander loves to spend time with his family, enjoys sports and eating healthy, barbecuing, and traveling.

Jim Sammon’s passion is helping people to:

  • Do more of the right work (and less of the wrong work).
  • Create more actual teams than just groups of people who work together.
  • Learning how to improve themselves, their team, and their organization incrementally.
  • Understand that less, not more, is usually part of the answer to some of the hardest questions we all face.
  • See their workplaces, teams, and their sphere of influence as something that is evolving, which requires an evolution of all of its parts to adapt.

Throughout my career, I have worked with clients of all sizes, industries, and technologies.  Whether it’s leading a transformative strategy at a Fortune 100 or helping a new startup understand its unique value proposition the common focus I bring to each role is “making people better.”  I strive to help those around me improve through mentorship, training, workshops, or just grabbing a coffee and lending an ear to their experiences.  This focus on continuous improvement and servant leadership is why I love what I do each day.  

In my spare time, I enjoy making things out of wood, metal, and other materials (like coffee).  I also enjoy hiking, board games, jigsaw puzzles, and playing with my Golden Doodle puppy Roxy (agile is her middle name), and I am usually listening to an audiobook or podcas

Marge Scheuerer, the 34-year-old Chief of Editing at Mastering Agility, living in Germany. By day, she’s an adept Scrum Master at Amazing Outcomes, sculpting efficient team dynamics. Off-duty, Marge channels her creativity into drawing, capturing life’s nuances, and finds relaxation in intricate crochet projects. Marge Scheuerer is a testament to the perfect synergy of a seasoned professional and loves drawing, adding vibrant strokes to the canvas of her life. When inspiration strikes, she transforms into her alter ego, Wonder Why Woman, jotting down her profound ideas and thoughts, weaving a tapestry of curiosity and wisdom.