About us

Sustained was founded to help people make better choices. More informed choices, based on reliable, trusted and accurate information.

Technologists, data scientists and researchers, software engineers, designers and product managers - the Sustained team come from an eclectic set of backgrounds - all with a desire to help drive better outcomes based on data and ease of use.

Meet the team

Silver Kuusk

Sr. Software Engineer

Silver is backend engineer at Sustained with over 20 years of experience in different software development related areas. He has formerly worked at Skype, Microsoft and Twilio. Silver's passion is the optimization and scaling of systems. He lives and works in Tallinn, Estonia.

Matthias Reich

Sr. LCA Scientist

Matthias’ academic and professional background is in energy systems engineering and life cycle assessment. He is passionate about making the insights he has gained accessible to everyone. Thus, he came from Switzerland to join Sustained in London to do just that.

Charlotte Franzellin

Sr. Product Manager

An environmental engineer with consulting and tech startup experience that has long been a sustainability and product enthusiast. Charlotte has found the best of both worlds at Sustained, where she can help create intuitive products that can help anyone make more sustainable choices on a daily basis.

Jevgeni Zaborovski

Software Engineer

Jevgeni is a front-end software engineer at Sustained. Born and raised in Tallinn, Estonia. Experienced with developing scalable web applications, such as internet banking and marketplaces with thousands of happy users. He is very excited to be a part of the Sustained team and deliver well-crafted software to the end-user.

Mihhail Lapushkin

Sr. Software Engineer

Software Engineer based in Tallinn, Estonia.

Allan Rank

Sr. Software Engineer

Allan is a backend engineer at Sustained with over 20 years of experience working in software development at companies like Skype, Microsoft and Twilio. He is based in Tallinn, Estonia

Andrei Birjukov

Sr. Software Engineer

Andrei is a software engineer at Sustained, living and working in Tallinn, Estonia. He cares about designing secure and scalable services, systems and APIs. A long time gearhead and a system software enthusiast, he was formerly an engineering lead at Skype, Microsoft, and Twilio.

Michael Velenko

Co-Founder & CTO

Born and raised in Latvia, Michael has spent his career developing software at scale across Skype, Microsoft and Twilio. Having built and lead product engineering organisations in both the Old World and the New, his passion has always been creating useful things that last.

Carl Olivier

Co-Founder & CEO

Carl's journey in product and engineering began at the turn of the century in Cape Town. After moving to London and having worked at Skype, Microsoft and Twilio with a focus on product, Carl has turned his attention to an area he has a personal passion for, namely leaving things at least a little better than he found them.

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