Team & Contacts

Get in touch with the HyJack Team

Our engineers have worked for top European hydrogen companies (and derivate molecules). They work hand in hand with our world class designers in digital platforms. The crew is very open to and welcomes discussion.

Alexi Liedes


Alexi brings to HyJack an insight to hydrogen industry value chain, technologies and modeling. He has previously worked for Alstom, EDF and for 5 years on hydrogen projects and technologies at ENGIE's R&D center.

Mariana Kobayashi

Head of Partnerships

Engineer with 5 years experience in the energy sector and digital transformation projects, passionate about technology, innovation and teaching.

Ziga Debevec


Ziga has a proven track record in leading successful cross-functional teams. Passionate about solving energy challenges of today with innovative business models and software that increase the number of actually executed energy projects.

Guillaume Lefrant


French IT Engineer, Guillaume is specialized in Web Development, bringing online solution to life. With a double MSc in IT and 10+ years experience, he is handling the technical part behing HyJack.

Johanny Martinez

Process Engineer

Johanny has a double degree in Chemical Engineering from Central University of Venezuela and the Sapienza University of Rome. The IFP Processes and Polymers program brings him this additional modelling expertise on key processes.

Mohamad Ibrahim

Process Engineer

Mohamad has a Chemical Engineering degree with a minor in economics from the American University of Beirut. IFP School s Processes and Polymers cursus gives him a deep understanding of the challenges related to the energy & chemicals industry.

Our mentors

A bold and experienced panel of mentors

Jean-Paul Girard


Thermal Engineer, killing CO2 for more than 30 years, developing energy management and renewables in leading energy service companies.
Believes low carbon hydrogen will be a part of our green future

Carla Cohen


Carla is a forward-looking and high-performer leader working in the energy sector for more than 15 years.
She is currently a Senior Strategy advisor in the gas renewables and power branch of TotalEnergy. Prior to joining Total she worked as consultant at IHS Markit and McKinsey. She holds a PhD in Economics.

Quentin Nouvelot


Quentin is Research project manager at ENGIE Lab H2, in charge of hydrogen mobility and cross cutting activities.
Involved in several international R&D project and standard development.

Frederik Madsen


Frederik has worked with electrolysis and Power-to-X technologies for several years. As a consultant at Brinckmann, Frederik is now working on accelerating decarbonising through research and advisory.

Cécile Jonchère


20+years developing low-carbon energy and energy efficiency at EDF and subsidiaries. Coaching of startups committed to the environmental transition. Convinced that low-carbon hydrogen will be a key component of the energy mix tomorrow

Fouzi Benkhelifa


Fouzi is an experimented entrepreneur in the field of sustainable energy and climate adaptation for cities and corporates. As CEO of NEXQT which mission is to support urban decision makers in their climate transition journeys with value-added unexploited data, Fouzi is strongly convinced that green hydrogen is a both a necessary and economically viable pathway for many sectors with limited options for decarbonization.

Raphael Yarisal


Attorney-at-law with a focus on compliance issues with an extensive experience in implementing large scale projects. Raphael is involved in various not-for-profit organizations

Marwa Said


Marwa holds a PhD in process engineering. She is an expert in green gas production with more than 8 years of experience in academic and industry research centers.

Aurelie Gonzalez


Aurelie spent 7 years into industry, cleantech and energy transition domain from corporates to start-up, from technical to sales. She has a large network in energy, industry and cleantech, a good understanding of technical topics as well as business development and sales.

Why HyJack Let's hijack the trend of greenhouse gas emissions - together.

The green hydrogen revolution has only started but it is already receiving mounting expectations. Always “bigger”, “faster”. At HyJack we believe that to build an inclusive momentum where everybody in the H2 community can face the challenge, we must contribute with our understanding on the hydrogen industry and digital development tools. We designed platform to facilitate the H2 project prefeasibility processes and to accelerate the introductory process within the H2 ecosystem. We are an independent company wishing to bring together hydrogen and digital tool experts. We believe that everybody regardless of the size of the company must have access to our platform. Hence, we made it free.

Please feel free to write us for feedback, ideas & requests!

You have in mind a special project where a team specialized in hydrogen and digital applications could make sense ? You can write to [email protected] or directly to one of the contacts above.

Contact us