Meet our dedicated team

For Sennen, Bristol is where we call home. Our core team are based in and around the city, a hub that is home to many innovative businesses and a hub for green technology. We love what we do and are always happy to chat.

Don’t be shy, say hello.

Meet the team

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Gaby Amiel

Co-Founder and CEO

With over 15 years of experience in the renewable energy sector, Gaby has a deep insight into how technology can truly transform the renewable energy sector.

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Paul Grimshaw

Co-Founder and CTO

Paul is a creative and highly skilled software architect with a passion for the latest technology.  

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Rafael Dawid (PhD, CEng)

Data Scientist/Developer

Rafael is an expert in using data-led decision making in renewables operations and maintenance. As a keen coder, Rafael has experience in both front-and-back end development.

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Anna de Buhr

Applications Engineer

Anna is a skilful systems developer and with several years of experience in the asset management of wind energy systems.

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Alberto Lietor

Senior Software Engineer

Alberto is a data-driven software engineer with extensive experience on web applications and api integrations.

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Cecilia Rivero

Senior Software Engineer

Cecilia strives for simplicity and is always trying to find the best and most direct ways to provide solutions, while keeping efficiency in mind.

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Kathleen Mackey

Junior Software Engineer

Kathleen has spent the last 10 years working in business development for technology companies.

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Stuart Pringle

Head of Business Development

Stuart heads up our commercial and new business efforts. Stuart brings more than 15 years experience in technology business development roles across both financial services and renewable energy sectors.

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Mary-Joyce Harley

Marketing Manager

Mary-Joyce is a dexterous marketing leader with over 13 years of B2B marketing experience. Spearheading Sennen’s global marketing function, Mary-Joyce is focused on company growth and delivering a superior brand experience. 

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