Lydie S. Ngo Um
Senior Product Manager Consultant
Salary / Daily rate
Paris, France
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Senior PM with 15+ yrs transforming e-commerce & marketplaces into revenue engines. Drove 2x sales growth through strategic API integrations (Expedia, OTA), platform scalability & conversion optimization. Carnegie Mellon trained. Expert in technical roadmaps, cross-functional leadership, product strategy, GenAI integration. Proven in online travel & hospitality sectors. Freelance since 2017. Bilingual EN/FR.
Work experience
Product Management Consultant
FreelanceFreelance
May 2017 - Present
9 years 6 months
France · Hybrid
• Vibe-coded a mobile application for managing a Handisport Football club (2025) • Led product strategies and digital transformations for international luxury, retail, and travel brands • Defined data-driven product and marketing strategies driving sustainable growth (+120% online sales increase) • Redesigned e-commerce experiences improving conversion rates and reducing digital marketing costs by 30% • Designed and implemented product roadmaps, prioritized backlogs, and managed KPIs • Established scaled Agile processes and cross-functional teams (Product Owners, Tech Leads, Marketing, Design) • Advised C-suite executives on business trade-offs and product positioning within enterprise strategy • Optimized time-to-market and continuously improved delivery processes
Personal goal pursuit
Career Break
Jun 2015 - May 2017
2 years
Châteaux & Hôtels Collection - Alain Ducasse Group
Dec 2011 - Jul 2015
3 years 8 months
Greater Paris Metropolitan Region · On-site
Deputy Chief Executive Officer - e-Commerce & Information Systems
May 2012 - Jul 2015
3 years 3 months
Greater Paris Metropolitan Region · On-site
• Led digital transformation for the luxury hotels and restaurants' network of the group (+400 hotels & restaurants worldwide). • Launched new digital channels, redesigned e-commerce website, and integrated mobile: +30% conversion rate • Designed and deployed distribution APIs connecting central booking engine to OTAs (Online Travel Agencies) and B2B partners • Enhanced digital customer journey and optimized SEO/SEM generating significant qualified traffic growth • Managed product and IT teams (12 people) with cross-functional coordination • Led budget management and strategic decisions on technology investments
Chief Information Officer & e-Commerce Director
Dec 2011 - Jul 2015
3 years 8 months
Greater Paris Metropolitan Region · On-site
As the Chief Information Officer, spearheaded the merger of Exclusive Hotels and Chateaux Hotels Collection into a single cohesive entity, aligning legacy IT systems to ensure seamless integration and operational efficiency. • Led the consolidation of two hotel chains, integrating IT systems to enhance operational efficiency. • Restructured IT systems and automated internal processes: -20% operational costs • Adopted Agile Project Management methodologies.
Chief Information Officer & eCommerce Director,
Exclusive-Hotels - Alain Ducasse Group
Dec 2011 - May 2012
6 months
7620 Paris, Denmark
Formulated and executed new IT strategies aligned with business and merger objectives.
Product Management Consultant - Interim Manager
X-PMFreelance
Oct 2010 - Dec 2011
1 year 3 months
Paris, France
• Launched new e-commerce platform during GoVoyages/eDreams/Opodo merger • Designed unified product model and migrated to Agile environment • Improved time-to-market by 25% and streamlined development processes • Coordinated multiple international teams to ensure post-merger product consistency.
Expedia
Feb 2006 - Oct 2010
4 years 9 months
On-site
Head, Partner Product and Sales
Apr 2008 - Oct 2010
2 years 7 months
On-site
• Led strategic partnership (Joint-venture) with Voyages-SNCF: +4 market share points on flights • Optimized customer journey and implemented cross-sell strategies (hotels/transportation) Major contribution to Expedia brand development in the French market.
Product Planning & Partner Services Manager
Jan 2007 - May 2008
1 year 5 months
On-site
• Developed product roadmap covering 30+ projects, meeting deadlines and business objectives • Implemented SEO strategy generating +20% organic traffic • Coordinated Product, Tech, and Marketing teams to ensure strategic alignment.
Program Manager France
Feb 2006 - Jan 2007
1 year
Bellevue, WA, USA
• Managed product initiatives for French market with international coordination • Successfully integrated new features (user reviews, cross-selling with SNCF & Eurostar) • Continuously improved user experience based on data analysis and customer feedback
Master of Information Systems Management - Class of 2005
Carnegie Mellon University
Aug 2004 - Dec 2005
1 year 5 months
Pittsburgh, PA, USA
• W.W. Cooper Merit Scholarship, 2004, for academic excellence. • Carnegie Mellon clubs: Consulting, European Business Club. Listed a #2 World's Best Information Systems Graduate Program. Master of Information Systems Management (MISM) program blends technical and leadership skills, equipping students with the ability to transform organizations through technology.
Program Manager Intern
Expedia Inc.
Jun 2005 - Oct 2005
5 months
Bellevue, WA, USA
• Program Manager Intern in charge of the 3 French websites (Expedia.fr, Voyages-sncf.com, anyway.com). • Wrote the Product Requirements Documents for the train & hotel cross-sell feature.
Project Manager & Customer Care Manager
Maporama International
Aug 2002 - Jul 2004
2 years
Paris, France
• Managed the Customer Care Department operations ensuring error free handling of all European & North American customer requests and queries coming in. • Developed, implemented and improved the operating procedures. • Directed and co-ordinated investigations and resolutions of all customer inquiries regarding prices, disputes, scheduling and technical support.
Founder & Project Director
UNIALFreelance
Mar 2001 - Jul 2004
3 years 5 months
Remote, OR 97458, USA
Founded an Internet consultancy firm in Cameroon. Offices included headquarters in Douala, and sales representatives' offices in Lomé (Togo) and Abidjan (Ivory Coast). Directed a technical and creative staff of nine. Project management, strategic planning.
Education
Carnegie Mellon University
Master
2004 - 2005
1 year 1 month
University of Paris I: Panthéon-Sorbonne
Master's degree
2003 - 2004
11 months
University of Paris I: Panthéon-Sorbonne
Master
2003 - 2004
1 year 1 month
University of Paris I: Panthéon-Sorbonne
Master of Arts
2002 - 2003
1 year 1 month
Portfolio
TRANSFORMATION DIGITALE D'UN RÉSEAU HÔTELIER DE LUXE
