Joanna Mosiej in

Joanna Mosiej

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Co-Founder | President of the Board Media Liberation Fund at Media Liberation Fund
📍 Warsaw, Mazowieckie, Poland

Joanna Mosiej is an accomplished media entrepreneur, co-founding the Media Liberation Fund and launching the Polish-Ukrainian magazine Sestry. eu. A former director at Gazeta Wyborcza, she led its highly successful digital subscription transformation. Her career is dedicated to using media as a tool for social impact, supporting independent journalism and fostering cross-cultural dialogue.

Deeply passionate about leadership and mentoring, Joanna actively works to empower others, particularly women in their professional careers. She has explored topics of ambition and psychology in her writings and public conversations. Her work is driven by a strong sense of social responsibility, championing solidarity and human rights through her various initiatives.

In early 2026, Forbes Women Polska recognized her on its prestigious list of "26 women to watch" for strengthening womens voices and building Polish-Ukrainian solidarity.

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Experience
17 Years
Current Role
Co-Founder | President of the Board Media Liberation Fund
Job Level
Leadership
Location
Warsaw, Mazowieckie, Poland
Personality Overview

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Communication Style
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Priorities

Topics Joanna cares about

Polish-Ukrainian Solidarity
Founded Sestry. eu, the first Polish-Ukrainian media outlet, to build dialogue and partnership. She also co-organized humanitarian aid campaigns like "Warmth from Poland to Kyiv".
Women's Empowerment
Consistently creates projects supporting women, from the magazine "Wysokie Obcasy Praca" to the Sestry. eu award "Portraits of Sisterhood, " which honors impactful female leaders.
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Career

Work history

3-2023
Co-Founder | President of the Board Media Liberation Fund
Media Liberation Fund
3-2023
CEO & Editor in Chief Sestry.eu
SESTRY.EU
10-2022 - 7-2023
Executive Director in charge of 'Siostrzeństwo' project
Kulczyk Foundation
1-2016 - 8-2022
Managing Director, Deputy Publishing Director of Gazeta Wyborcza
Agora SA
1-2016 - 8-2022
Editor in Chief Wysokie Obcasy PRACA,
Agora SA
In the press

Media appearances

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Education
2018 - 2019
Akademia Psychologii Przywództwa
Warsaw University of Technology Business School
2017 - 2017
Coach
Wszechnica Uniwersytetu Jagielońskiego
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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