Our Team
Sharon Whittaker
Chief Operating Officer
Sharon is a seasoned FinTech executive with over three decades of experience driving operational excellence, revenue growth, and client success. As Chief Operating Officer at Mitchell Winter Bell S.L., Sharon brings a wealth of expertise in optimising processes, leading high-performing teams, and implementing strategic initiatives to enhance business efficiency. Throughout her career, Sharon has held senior leadership roles across global financial institutions and FinTech firms. Her ability to develop and implement data-driven strategies has resulted in measurable business improvements, such as increasing revenue by 779% and reducing time to revenue realisation by 21%. Outside of her professional endeavours, Sharon is a former World Irish Dancing Champion, a black belt in Wado-Ryu, a licensed Zumba instructor, and an accomplished marathon runner.
Cristiano Langella
FinTech & Payments Expert
Cristiano Langella is an accomplished FinTech and payments professional with extensive experience driving client growth, building strategic partnerships, and leading high-value accounts across Europe and the UK. Cristiano leverages his expertise in international sales, account leadership, and stakeholder management to deliver tailored solutions that support client success in a competitive global market. Throughout his career, Cristiano has held senior leadership and client-facing roles at leading firms, his track record spans scaling revenue pipelines, managing enterprise relationships. Cristiano is known for his ability to balance strategic vision with hands-on execution, excelling in areas such as stakeholder management, project delivery, and negotiation. He brings a strong international perspective, having managed sales and partnerships across the UK, Middle East, India, and wider European markets.
Martin Kaufman
Sales Manager
Martin is a seasoned business founder, managing director, and executive chairman with a wealth of experience in building and leading successful companies. Throughout his career, Martin has taken on various roles, including serving as a non-executive director and playing a key role in mergers and acquisitions, where he successfully led the sale of his business. Now in semi-retirement, Martin is excited by new projects and keeps busy by exploring ventures that align with his keen interest in the workings of money. Outside of his professional life, Martin is a dedicated husband and father who enjoys cooking and traveling. He embraces every opportunity to explore new cultures and cuisines, reflecting his passion for continuous learning and adventure.
Jaki Becker
Director
Trescherries is a trusted network affiliate, offering free consultancy to connect businesses with proven marketing, banking, payment and CRM and retention solutions. We aggregate carefully selected suppliers that are already live, referenced, and delivering value in real market conditions. Every solution in the network has been assessed for quality, reliability, and relevance. By acting as a central hub, Trescherries removes the noise from the ecosystem. No guesswork, no unverified providers — just solutions that are known to perform that can directly impact your bottom line. Trescherries helps companies move faster, make better decisions, and build with confidence by connecting them to partners that are already trusted by the industry. Trescherries is continuously expanding its network. We are always looking for high-quality marketing, retention, banking and payment suppliers with proven solutions, strong market references, and a commitment to reliability and compliance. If your solution is live, trusted, and delivering real value, we are interested in exploring a potential collaboration. Our network is always evolving. Trescherries actively seeks new suppliers to join the network. We welcome providers with established, referenced solutions who share our focus on quality, transparency, and long-term partnerships with a unique USP. Trescherries helps you find the right solution, faster. We source and introduce marketing, CRM, retention, banking and payment partners that fit your business — not generic options. Our work is based on a revenue-share model with suppliers, aligning our success directly with the success of the partnership.
Jessica Fitchet Fiore
Jessica Fitchet Fiore is the Growth & Partnerships Director at TresCherries, specialising in driving sustainable growth through high-impact partnerships, conversion optimisation and commercial strategy. With 10+ years of Tier 1 iGaming experience across acquisition, product, conversion, and market leadership, Jess thrives in fast-paced global environments, leading performance-driven initiatives across multiple markets and cross-functional teams and always grounded in value, ROI, and measurable outcomes. Her background includes senior roles at Betway and YOLO, where she led growth-focused product improvements and customer experience strategy across international markets. Now at TresCherries, Jess focuses on expanding strategic alliances, strengthening supplier relationships, identifying new revenue opportunities and accelerating scalable growth through collaboration and market insight. Outside of work, Jess enjoys coastal cliff walks with her husband and dog Nelly, staying active through boxing, sea swimming and running and has a true passion travelling the world!