Marie-Hélène Polloni

Senior People and Culture Consultant

Salaire / Taux journalier

Paris, France

Freelance, ouvert au CDI

Expertises

Marque employeurConduite du changementGestion des talentsChief People OfficerRHCoachingGestion de la performanceDéveloppement organisationnelVP People

Langues

AnglaisAllemandItalien

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.

Liens

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

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