Fabian Tollenaar
Technology Director (CTO) at CEFAB Management
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolFabian Tollenaar is a technology director and serial founder with 11 years of professional experience building cloud, embedded and web systems across yachting, media and search domains. He blends hands-on backend engineering—evidenced by contributions to the Signal K marine server—with strategic product and CTO-as-a-service roles, scaling startups and founding EsSense.AI to create a smart yacht OS. Based in Amsterdam, Fabian has led Decipher Industries as CEO to help organisations bridge traditional and digital economies while advising and operating as CTO for SuperYacht Times, YachtEye and CEFAB. His background as an early Commodore 128 programmer and childhood sailor surfaces in a rare combination of maritime domain expertise and deep technical craft. Known for turning niche, safety-critical requirements into reliable, user-centered systems, he pairs entrepreneurial grit with practical engineering.
11 years of coding experience
12 years of employment as a software developer
RSG "Magister Alvinus"Bachelor of Science (BSc), Bachelor of Science (BSc) at Universiteit van Amsterdam
English, Dutch, French, German, northern frisian
Stackoverflow
1reputation
777reached
1answer
1question
Github Skills (9)
ip10
nodejs10
javascript10
tcp10
rest-api9
data-streaming9
git8
xmlhttprequest6
electron6
Programming languages (13)
Github contributions (5)
SignalK/signalk-server
Dec 2015 - Sep 2017
An implementation of a Signal K central server for boats.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 13 PRs, 25 pushes in 1 year 9 months
Contributions summary:Fabian primarily contributed to the server-side logic and functionality of the Signal K server. Their work included fixing REST interface bugs and refining the reconnection strategy of the TCP provider. The user also made changes to the keys-filter provider and implemented the first version of a producer component, indicating a focus on data processing and integration within the Signal K ecosystem. Overall, the contributions suggest a focus on improving the server's reliability, data handling, and overall functionality related to the Signal K protocol.
signalhikvisionmarineboatscentral-server
decipherindustries/signalk-calypso-ultrasonic
Sep 2018 - Mar 2020
Contributions:41 commits, 35 pushes, 1 branch in 1 year 6 months
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