Technology, Product & Data

Johnnie leads our interim practice, bringing over a decade of Private Equity recruitment experience across London and New York before co-founding Greco Advisors. He’s worked with everyone partnering with funds of all sizes from first-time raises to global giants, specialising in Interim Management and Independent Consultants. Johnnie is drawn to the pace, flexibility and immediate impact this talent pool brings to value creation. His strength lies in building trusted relationships and delivering high-impact talent with speed, precision and flexibility - where it matters most. Outside of work, Johnnie enjoys cycling through the Yorkshire hills and spending time with his two daughters.

Jake has over 7 years experience building Engineering, Product, Data, and Cyber teams for private equity and venture capital-backed technology businesses. Jake has delivered multiple senior leadership searches within this space, with a particular focus on landing businesses in the UK and Europe for the first time. At Greco Jake works with our private equity clients to build Tech, Product, Cyber, and Data portfolio operations teams and then supports these teams with permanent C-Level hiring at the portfolio level. Jake’s typical hires include – Chief Data and Data Science Officer, Chief Technology Officer, and Chief Product Officer alongside specific team builds when appropriate. Outside of work, Jake is a keen sportsman and can often be found playing football and cricket on weekends.

Jenna has over four years’ experience working across the Interim and Fractional market in Tech. Originally from the United States, she completed her MSc in Immigration Policy at LSE and went on to build a career in recruitment, driven by a strong interest in people and talent. She has developed an extensive network across Product, Technology, Data, Digital Infrastructure and AI, with early experience hiring niche technology specialists, including ServiceNow and Salesforce professionals. As a Senior Consultant in the Interim Tech, Product and Data Practice, Jenna focuses on connecting industry leaders, building collaborative communities, and identifying exceptional talent across the tech and digital landscape of Private Equity. Outside of work, she enjoys golf, Pilates and Sunday morning walks on Hampstead Heath.

Ethan has spent the past five years in private equity focused hiring, specialising in Technology, Product and Data/AI markets. He has successfully delivered searches for investment firms ranging from Venture Capital to Mid-Market and Large-Cap Private Equity, supporting both in-house roles within funds and mission-critical appointments across their portfolio companies. Ethan’s network spans both strategic C-suite advisors as well as hands-on delivery leaders, enabling him to build high-impact teams that drive value creation through digital transformation, innovation, and operational scale. His deep market insight and tailored approach make him a trusted partner to investors and operators alike. Outside of work, Ethan is a passionate Arsenal fan and enjoys long dog walks with his family in Kent.

Katja is a Senior Consultant in Greco’s Technology, Product & Data practice, specialising in technology executive search. She works with investors and portfolio companies to identify and appoint leaders who can build and scale technology and data capabilities across complex organisations. Prior to joining Greco, Katja spent four years focused on executive search within financial services, partnering with leading institutional asset managers, alternative asset firms, private markets investors and hedge funds to deliver senior and C-suite appointments. Katja takes a highly research-led and consultative approach to search, building trusted relationships with both investors and operators across the evolving private equity landscape. Outside of work, Katja enjoys cooking, playing football for her local team in South West London and working on illustration projects.