
Marie-Hélène Polloni
Senior People and Culture Consultant
Salaire / Taux journalier
Paris, France
Freelance, ouvert au CDI
Expertises
Langues
À propos
Introduction
People & Culture Architect with 5+ years of freelance HR transformation expertise, serving global remote teams and leadership across 60+ countries. Specialized in scalable HR policies, employer branding, and sustainable growth strategies. I help founders build engaging workplace cultures that drive performance and retention.
Expérience de travail
PEOPLE & CULTURE ARCHITECT (independent) : HR transformation - Scaling - Culture & Employer Brand
Independent Freelance
janv. 2019 - Présent
7 ans 10 mois
Région de Paris, France
January 2019 - Present : Founded a consultancy partnering with startups, scale-ups and transforming organizations to build and scale People & Culture functions that enable growth, alignment and execution in complex, international environments. Selected contributions : • Built and structured People functions (HR infrastructure, HRIS, policies, operating models) to support rapid growth and organizational complexity. • Designed and implemented culture, engagement and employer brand strategies, strengthening retention and employee experience. • Helped leadership teams align strategy with execution by clarifying roles, accountability and performance frameworks. • Integrated sustainability into People and business practices, reinforcing employer value proposition and long-term engagement
Director of People and Culture
Modus Create
juin 2022 - juil. 2025
3 ans 2 mois
Paris, France
Joined Tweag, later acquired by Modus Create, and appointed Director of People & Culture for the combined organization. Scaled the function to support growth from 200 to 500+ employees across 60+ countries and 8 legal entities in a fully distributed environment. Key Achievements: • Built and scaled the People & Culture function to support hypergrowth and post-acquisition integration. • Implemented HRIS and automation, improving efficiency, scalability and data reliability. • Designed global performance and compensation frameworks, increasing alignment and transparency. • Led the Learning & Leadership strategy, including a global partnership with Coursera. • Embedded company values into onboarding, employee journey and engagement initiatives, strengthening culture and alignment at scale.
Head of People and Culture
Tweag
août 2021 - juil. 2022
1 an
Paris, France
Tweag is Modus Create's Open Source Program Office. Scaled the company from 60 to 120 employees across the world.
Head of CSR & Employer Reputation
dentsu international
nov. 2016 - janv. 2019
2 ans 3 mois
92400 Courbevoie, France
Led the definition and deployment of a CSR strategy integrating sustainability into the business model, strengthening operational efficiency, client positioning and employer brand. Key achievements: • Launched a Group-wide engagement platform, aligning sustainability with business priorities and increasing employee and stakeholder engagement. • Defined and implemented a sustainable procurement strategy, improving supply chain resilience and cost efficiency. • Secured key CSR certifications, enhancing brand credibility and strengthening positioning in competitive tenders.
Head of Talent
Dentsu Aegis Network France
nov. 2014 - oct. 2016
2 ans
92400 Courbevoie, France
Accountable for leading the talent acquisition, talent development, and mobility strategies for the organization, fostering engagement and employer reputation.
Head of Leadership and Learning
DENTSU AEGIS NETWORK
avr. 2013 - oct. 2014
1 an 7 mois
92400 Courbevoie, France
Accountable for leading initiatives to support the digital transformation of the company through leadership development, learning programs, and cultural transformation.
Marketing Director
Presstalis
janv. 2008 - déc. 2012
5 ans
Paris Area, France
Accountable for founding and leading the Publisher Services department, developing a B2B profit center and leading a team of 25 people.
Marketing Director
Prisma Media
janv. 1996 - déc. 2007
12 ans
Paris Area, France
Formation
NRGY COACHING
Team systemic coaching
2020 - 2021
2 ans
CentraleSupélec
Master Classe 21
2018 - 2019
2 ans
Sciences Po
Master's degree
1986 - 1987
2 ans
Sciences Po
Diplôme Institut d'Etudes Politiques de Paris
1982 - 1986
5 ans