Alex Lajewski

Product Manager E-commerce, B2c @momox

Berlin, DE

380M+ annual turnover, 45M customers Europe’s leading re-commerce platform for pre-owned books, media, and fashion. Delivered 10€ M margin impact and scaled product culture through strategic leadership across B2C initiatives. Launched new markets, embedded AI into workflows, institutionalized product discovery, and enforced execution standards across teams to drive clarity, velocity, and measurable growth— Launched Italy and Spain operations from 0 to ~100k of weekly items, driving a million € contribution margin by orchestrating cross-functional delivery, enforcing stakeholder alignment — showcasing leadership and ownership in a high-ambiguity international project— Increased company-wide GDPR-consent acceptance rate from 44% to 72%, unlocking about a million € CM4 uplift — drove vendor selection, legal alignment, and cross-product rollout, leveraging product leadership and strategic persistence— Launched and led AI enablement program across product teams to integrate AI into discovery, analysis, and ideation workflows — applied leadership and AI expertise to deliver workshops, resource hub, and cross-team interviews, reducing time-to-decision by 20% and surfacing AI-driven product concepts for new customer value— Built and led a company-wide Ideation process to capture, evaluate, and prioritize product ideas — applied B2C product leadership to run cross-functional discovery sessions, enforce strategic criteria, and unlock 10%+ revenue potential from validated initiatives— Drove adoption of modern product practices across e-commerce teams, embedding A/B testing, strategic discovery, documentation standards, and knowledge sharing rituals — applied leadership and mentoring to align inbound strategy across units, enforce consistent execution, and foster a culture of clarity and data-driven decision-making.