Gunnar Griese

Gunnar is a digital analytics engineer and educator specializing in the technical implementation and optimization of data collection systems. With over eight years of experience spanning digital analytics, data science, and e-commerce, he brings a unique combination of technical expertise and business acumen to complex analytics challenges.

His core strength lies in designing and implementing robust data architectures using Google Analytics, Google Tag Manager, and Google Cloud Platform. He helps organizations move beyond fragile client-side tagging setups toward resilient, first-party data infrastructures they can actually trust.

As a lecturer at IHM Business School, Gunnar shares his knowledge with the next generation of analytics professionals, focusing on practical implementation skills in GA and Tag Manager. Drawing from his experience at leading agencies in the Nordics and Germany, he excels at translating complex technical requirements into practical solutions that drive business impact.
Gunnar shares his thoughts regularly at gunnargriese.com.

Simo Ahava

Simo Ahava is a recognized expert on customizing web analytics and tag management solutions to improve the entire “life cycle” of data collection, processing, and reporting. His main areas of expertise lie with Google Analytics and Google Tag Manager, and Google has appointed him as a Google Developer Expert in these fields. He is especially interested in communication structures within organizations, as he firmly believes that communication breakdowns are the underlying cause to practically all data-related problems.

Simo is particularly invested in demystifying analytics development work, and his main focus is on increasing awareness, skills, and critical thinking around data and development.

Simo is a partner and co-founder at 8-bit-sheep, a digital services boutique. He’s also co-founder (together with Mari Ahava) of Simmer, an online learning platform for technical marketers.

Among other things, Simo writes a popular blog on all things Google Analytics and Google Tag Manager development at www.simoahava.com. An experienced speaker and prolific blogger, Simo can be seen and heard in conferences, product forums, support communities, and developer meet-ups alike.