About Sebastien
- Retention & churn reduction strategies
- Customer Success team design & segmentation
- Post-acquisition integration & process stabilisation
- Voice of Customer (VoC) & CX transformation
- Scaling from high-touch to hybrid / 1-to-many models
- +25 to +35 NPS improvement across global programs (25+ countries)
- Managed renewal portfolios exceeding $75M ARR
- Designed CX programs reaching up to 95% customer coverage
- Delivered measurable revenue growth through retention and expansion
- Retention & NRR audit (2–4 weeks)
- Customer Success operating model design
- 30-60-90 day transformation plans
- Fractional Head of Customer Success
English
Native or bilingual
French
Native or bilingual
Experience
- SectigoDirector, Customer retention and growthDIGITAL AND ITSeptember 2025 - Today (11 months)London, United Kingdom
- Managed a $70M+ global renewal portfolio, improving forecast accuracy and revenue predictability across Americas, EMEA, and APJ
- Redesigned segmentation and coverage model (3,000+ customers), aligning resources to revenue potential across Strategic, Enterprise, and SMB segments
- Implemented structured forecasting and operating cadences (win rooms, pipeline reviews), increasing visibility on risk and enabling proactive gap-to-plan mitigation
- Built and aligned renewal quotas and performance frameworks, connecting individual targets to global revenue objectives
- Led churn and downsell analysis, identifying root causes and deploying targeted recovery and win-back initiatives
- Improved data quality and renewal governance post-acquisition, reducing ambiguity in account ownership and pipeline tracking
- Developed scalable renewal and expansion playbooks, supporting +21% ARR growth and +14% uplift in targeted segments
- GoodaysHead of Customer SuccessDIGITAL AND ITMarch 2019 - August 2025 (6 years and 5 months)London, United Kingdom
- Led Customer Success across EMEA & APAC, supporting a global SaaS client base and driving 15%+ YoY ARR growth
- Reduced churn through structured lifecycle and engagement strategies, improving retention across enterprise and mid-market segments
- Designed and implemented a segmentation model based on customer maturity, enabling scalable, tiered service delivery
- Built a churn-risk assessment framework, increasing renewal predictability and enabling proactive risk mitigation
- Delivered global Voice of Customer (VoC) and CX programs across EMEA & APAC
- Partnered with Product and Engineering to translate enterprise client needs into roadmap priorities
- Advised enterprise clients on CX performance and transformation strategies, linking customer experience to measurable business outcomes
- NICE SatmetrixEMEA Client Partner, Enterprise SolutionsNovember 2015 - March 2019 (3 years and 4 months)London, UK• • Led a team of Client Success Managers, ensuring overall client success for EMEA enterprise clients• • Developed annual strategic plans focused on growth, retention, and reputation• • Responsible for overall client success and health for a portfolio of Enterprise accounts.• • Ensure clients get the maximum value out of their Customer Experience Management programme by helping them set-up their software and providing them with latest knowledge and information on how to run such a programme.• • Work with clients in understanding their business objectives, develop and execute implementation project plans to drive early life client success and adoption among their stakeholders through application setup, training and onboarding.• • Formulate for them comprehensive strategic recommendations for ensuring optimal customer experience and regularly assess progress of these solutions.• • Provide continued value-add in ongoing interactions by reviewing health dashboards and closely monitoring adoption rates.• • Drive and execute renewals, including proactively identify and prioritise accounts focusing efforts according to perceived risk, potential growth, strategic value, and renewal timeframe.• • Partner with our Engineering and Support teams to ensure that our cross-functional efforts are aligned to achieve client objectives, work with the Product Management team to ensure customer feature requests and expectations are managed.• • Keep up to date on latest trends in customer experience management practices by periodically reviewing relevant literature and getting involved in group discussions.
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Education
- Certificate in ManagementHEC MontréalCertificate in Management
- Certificate in Environmental sciencesUQAMCertificate in Environmental sciences
Certifications
- Project Management ProfesionalProject Management Institute2010
- NPS2 Certified AssociateNICE Satmetrix2016