Meet Our Exec Team and Board

Executive team 

Jay Radia

Co-Founder and CEO

Jay and his brother Meelan started Yieldify after realizing that e-commerce sites were lacking a simple, easy to integrate tool that allowed them to improve their customer experience.

Prior to Yieldify, Jay had a promising career in Finance where he worked on the trading floors at Investment Banks such as Bank of America and BNP Paribas. He studied Economics as an undergraduate at UCL and always gravitated towards entrepreneurship from an early age.

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Luke Oubridge

Chief Operating Officer

Luke joined Yieldify from fintech business Red Deer, where he was CEO. His experience as a leader in the technology industry includes five years at Maxymiser, where as VP EMEA he was responsible for 250 staff and two-thirds of the global Maxymiser business, sustaining a revenue run-rate of $50 million at the time of the business’s 2015 acquisition by Oracle. Luke’s background also includes over ten years at Accenture and UBM.

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Hannah Nakano Stewart

VP Global Marketing

Hannah joined Yieldify in 2015, bringing experience from across the marketing and communications spectrum. Previously a Product Marketer at global fintech business Monitise, she has also led global communications projects for brands including Samsung, HTC and Canon whilst at leading agencies Weber Shandwick and Nelson Bostock. She has a degree in History from Cambridge University.

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Romain Sestier

VP Product and Services

Romain leads Yieldify’s product and services teams, helping turn over 30 billion data points into actionable intelligence and defining the product roadmap. He joined the company in 2018, having previously led UK Professional Services at ContentSquare and having worked for Oracle Maxymiser as a consultant. He was also Founder and CEO of Upper.ai, an AI data analyst for marketing and product teams.

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Lucy Mack

Head Of People

Lucy has experience working in all things People across a range of different sectors including media, FMCG and technology. Before joining Yieldify she was working as an HR Consultant for small start-ups in London. Lucy completed her undergraduate study in Psychology, graduating with a 1st class (Hons), and has also completed a Masters degree in Human Resource Management.

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Board of Directors 

John Guiliani

John is President and Chief Executive Officer of Conversant, which he joined following the acquisition of Dotomi, where he had served as Chief Executive Officer.

He is a seasoned executive with over 30 years of experience in growing successful organisations and has participated on boards for Bluestem Brands, Q Interactive, SuperMarkets Online, Affinova, Claria, Imagitas, and El Dorado Marketing.

Konstantin Stiskin

Konstantin is Partner at Binomial Ventures, where he focuses on investing in early and mid-stage companies in fintech, cybersecurity and data.

With experience across three venture capital funds, he has invested in over forty businesses and held strategic roles with ten companies, which have raised over $100m with his support. As an angel investor, Konstantin actively invests in companies in the US, UK and Russia.

Hussein Kanji

Hussein is a founding partner of Hoxton Ventures, a London-based early stage European venture capital firm.

He is also an angel investor in Bea’s of Bloomsbury, GoCardless, Halo Neuroscience, Popxo and Signpost and has held advisory roles with Tarmin and Eros International. Hussein was formerly an associate at Accel Partners, where he focused on consumer internet, financial technology and software investments.

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