Akiyo Marukawa

As a Frontend Developer Akiyo  works on the Four Twenty Seven climate risk application’s user interface, building out the platform and systems to serve a diverse client base.

Previously, Akiyo developed web applications at the Lawrence Berkeley National Laboratory and has worked with Python and Flask on the backend. Her diverse background also includes process automation and systems engineering.

Alix Herrmann

At Four Twenty Seven Alix leverages over 25 years of experience in software engineering to expand Four Twenty Seven’s climate risk scoring capabilities.

Previously, Alix developed big data analytics for financial market trading at Instinet. She also has experience building neural network compilers, developing DSP-oriented mathematical libraries and creating ground-based radar signal processing pipelines.


Klaus Fabian

As VP of Engineering, Klaus draws on more than 25 years of experience in new product development to build Four Twenty Seven’s data platform.

Klaus co-founded and served as CTO of Incorta, a business intelligence and analytics software provider funded by Google Ventures and Kleiner Perkins. Previously he managed business intelligence and reporting software at Oracle, including BI Publisher and served as product manager for the Aegis Equity Portfolio Risk Analysis suite at MSCI (then Barra).