Résumé

Tomek Osiński

Product Design Leader · Senior UX Manager

Profile

Product design leader with 15+ years' experience creating and scaling complex, data-rich digital products. Currently leading a multidisciplinary Sports UX team of approximately 15 designers, including three design leads, across the UK, Europe and India. Combines hands-on product expertise with design strategy, team development and cross-functional leadership, delivering measurable customer and commercial outcomes in complex, high-volume and regulated environments.

Experience

Senior UX Manager, Sports

Entain · London / remote
Jan 2021 – Present
  • Lead an international, multidisciplinary Sports UX team of approximately 15 designers, including three design leads, across the UK, Europe and India.
  • Own design across sportsbook discovery, transactional, post-bet and retail experiences for global brands and platforms serving 6M+ active customers.
  • Partner with senior Product and Engineering stakeholders to set direction, resolve trade-offs and deliver customer and commercial outcomes in a regulated environment.
  • Led data-informed improvements to core betting journeys, contributing to a 15% increase in bet conversion.
  • Strengthen quality and delivery through design-system governance, embedded research practices and AI-supported design workflows, while remaining hands-on in critical product areas.

Lead UX Designer

GVC Group · London
Oct 2018 – Jan 2021
  • Led UX initiatives and a team of designers delivering high-volume digital products used by millions of weekly customers.
  • Established UX standards and scalable frameworks that reduced design debt by 40% and accelerated delivery across multiple brands.
  • Used research and behavioural analysis to inform product decisions and shape core sportsbook experiences.

Senior UX Designer

GVC Group · London
Nov 2017 – Oct 2018
  • Designed cross-platform experiences, using usability testing and feedback loops to improve usability and engagement.

Digital Designer

Sportingbet · London
Dec 2012 – Nov 2017
  • Designed landing pages, newsletters and digital marketing materials supporting sportsbook and gaming campaigns across web and mobile.

Digital Designer

GIMO · London
Dec 2011 – Dec 2012