Technology leadership · Hamburg

I lead
long-horizon
renewal.

I stabilise teams and steadily improve the technology, product, and ways of working that support a worthwhile product.

Now
CTO & Managing Director
esome advertising technologies
Focus
Technology-enabled B2B and service environments

Change that lasts

I do my best work where a capable team and a worthwhile product have accumulated complexity: legacy systems, unclear ownership, tired structures, or decisions that no longer add up. I help create stability first, then build the momentum to improve things without stopping the business.

That work is deliberately incremental. It includes technical modernisation and product decisions, but it also means designing team structures, making ownership clearer, and paying close attention to what motivates the people doing the work.

Patterns of work

These are the recurring situations where I can make a useful difference.

01

Stability before speed

I took responsibility for two remote teams that had been treated as coding capacity, with little context or ownership. By explaining the business logic, connecting them with the teams around them, establishing regular exchange, and moving product management closer to them, the teams began to identify development opportunities and prioritise them directly with the people who needed the features.

Outcome
Ownership became local

02

Modernise without stopping

A delivery process built around cherry-picking in SVN supported releases roughly every three months. We moved to Git and GitLab, added static analysis and automated acceptance tests, and increased delivery frequency from every three months to dozens of deployments a day.

Outcome
3 months to daily delivery

03

Structure around people

In an organisation where hierarchy obscured purpose, I introduced value streams, aligned teams around them, set clear goals, and removed hierarchy from the way the work was organised. The result was clearer ownership and purpose; for some teams, this tripled the economic success of their work.

Outcome
Up to 3× economic success

Career milestones

1997–2002
Studied computer science at the University of Hamburg.
2015
Joined esome advertising technologies as CTO.
2021
Became Managing Director at esome advertising technologies.

For the full picture, including earlier roles and recommendations, visit my LinkedIn profile.

Stefan Wiegreffe

Worthwhile work deserves patient change.

I am selectively open to thoughtful conversations about leadership opportunities where this kind of long-term renewal can make a difference. If that sounds familiar, I would be glad to hear from you.

Email Stefan Find me on LinkedIn