Sebastián M.

Gender Justice at Oxfam America | Leader of Defying Gender Roles

Boston, Massachusetts, United States

About

Transformational leader with 20 years of experience driving development work across 15 countries, managing budgets, and leading multicultural, cross-functional teams in multilingual environments. Accomplished diplomat and political strategist with demonstrated skills to develop and execute strategy, build coalitions, and manage complex stakeholder relationships with tact and discernment. Gender justice & strategic practitioner with 13 years of expertise translating gender justice theory into practice internally and externally, with deep knowledge in intersectional feminism, LGBTQIA+ issues, masculinity, anti-racism & decoloniality, women’s political participation, care work, and GBV. Founder and leader of Defying Gender Roles for 11 years. An advocacy initiative defying gender inequality by reimagining masculinity with care at the center, through a popular education approach. Internationally recognized thought leader, TEDx speaker (30K views), podcaster (latest) & writer (latest) who has delivered 50+ presentations and training sessions on gender equality and social justice.

Experience

  • Oxfam America (10 yrs 8 mos)
    • Senior Advisor | Gender Justice and Humanitarian Issues
      Aug 2025 - Present · 11 mos

      • Drive gender integration and intersectional feminism work in Oxfam’s Humanitarian work, from humanitarian advocacy, fundraising, and research to expert-level advisory to senior leadership. • Contribute to policy, programs, public engagement, and strategy that enhance the visibility and depth of gender justice, decoloniality, Women, Peace and Security, and human rights in our external work.

    • Senior Manager | Intersectional Feminism
      Sep 2024 - Jul 2025 · 11 mos

      • Led Oxfam’s commitment to translate gender justice and feminist values into strategy, tactics, policy positions, organizational culture, leading streams of work, nurturing talent, and managing upwards. • Four years leading the Gender Resource Network (25 staff), an internal feminist lab grounded in intersectionality that identifies gaps and pilots products and processes to advance gender justice. • Led Oxfam's longest-running training initiative: 8 years directing the Men and Masculinities group, creating a space to nurture staff understanding of manhood through a feminist lens. • Seven years representing Oxfam on the Global MenCare advisory body, influencing global strategy on fatherhood, including contributions to three editions of the “The State of the World Fathers report”.

    • Lead Facilitator | Men and Masculinites
      May 2018 - Jul 2025 · 7 yrs 3 mos

      • Founded, led, and co-developed an eight-year learning initiative for men at Oxfam America, working to challenge patriarchal structures through feminist and popular pedagogy approaches alongside dedicated colleagues. • Facilitated over 70 sessions on gender justice topics, including intersectionality, care systems, feminism, gender-based violence prevention, storytelling, and emotional literacy, contributing to ongoing conversations about organizational culture and emotional literacy among participants. Supported group members to lead, co-facilitate, or design 80 one-hour sessions, totalling 150 sessions. • Curated and hosted a distinguished roster of over 10 internationally recognized thought leaders and practitioners in gender masculinity, LGBTQI issues, care ethics, and feminist theory. • Contributed to creating inclusive spaces that welcomed women and gender-diverse voices, supporting the group's evolution from binary understandings of power toward more nuanced, intersectional perspectives on systemic change.

  • Defying Gender Roles (12 yrs 1 mo)
    • Creative Writer
      Jul 2018 - Present · 8 yrs

      • Published in 2025 on the digital anthology 'Poems That Are Medicine: The Art of Caring Through Poetry', published by the EU-LAC Foundation / Fundación EU-LAC. • Published in 2024 on Reed's Magazine for non-fiction piece titled "On care, pain, violence, and war" • Since 2018, author of the blog #MasterInLove exploring the intersection of care, gender, masculinities, and parenting

    • Leader | Founder
      Jun 2014 - Present · 12 yrs 1 mo

      • Create, launch, and lead an online advocacy initiative challenging prevailing harmful gender roles and norms that limit our experience in life. Over 50 articles written, 25 trainings, 10 podcast and conversations in small and big spaces around the world. • Advice international organizations, fundations and private funders, academics, and non profit leaders on about gender issues, feminisms, intersectionality, and the challenges to defy traditional masculinity. • Mentor 12 young professionals from across the world who volunteered for DGR as a way to learn about gender issues, feminisms, intersectionality by doing. • Developed and launched the campaign “Redefining #ManUp” to spark a conversation about the harmful elements of “Man Up”. We developed a design, pictures, and a t-shirt to spread the message. Internantional public speaker TEDx Talk: “What it means to be a man today in the struggle for achieving gender equality” Harvard Humanitarian Initaitive: “Gender, masculinities and humanitarian work” Harvard School of Graduate Education: “Gender and education in Latin America” International Organization of Migrations (IOM): "A Thousand Ways to Be a Man" campaign Oxfam America: “Gender, Manhood, and Masculinities” and “Men at the gender table?” The Fletcher School - Gender Conference: “The role of men in gender issues” Emerson College: “Exploring gender issues and politics in Latin America” Respect Jamaica: “101 - Unwrapping gender” Podcasts Men and Now: “Men at Work, Men at Home: Advancing Feminist Social Change” 2022 Geneve Peace week: “Gender, Conflict and inequality in Colombia” 2021 ForumCiv: “Be a man: putting words into your emotions” 2021 ForumCiv: “Care like a man: an antidote to violence” 2021 At the table “Fatherhood and feminism”, 2020 Just winging it: “Raising feminist boys”, 2018. CoreWomen: “Empoderamiento de las mujeres y el rol de los hombres”, 2017. Harvard Humanitarian Initaitve: “Gender Perspectives in Humanitarian work”, 2016

  • Writer at Words in the Bucket
    Nov 2014 - Nov 2018 · 4 yrs 1 mo

    I am a communicator for social change. I challenge power inequalities. My objective is to make visible how gender shapes our experience in life as individuals, communities, and societies. Since 2014, I have written over 15 articles talking about personal reflections on masculinity and manhood, stories on Gender-Based Violence (GBV) and inviting readers to challenge harmful, outdated gender roles and norms. As Words in the Bucket, I believe in raising awareness, informing people, letting them participate and share their opinions as a fundamental basis for change.

  • Gender, Masculinities and Social Inclusion Consultant at Value For Women Ltd.
    Nov 2015 - Mar 2017 · 1 yr 5 mos

    • Provided in-depth technical advice on how to incorporate purposefully rural men in an innovative program aiming to empower economically women in rural areas of Guatemala. Project: Women in Small Enterprise (WISE). • Develop approaches and activities for developing a toolkit on how to empower men and engage women in discussing gender issues such as household chores, caregiving, and decision-making processes.

  • Organization of American States (8 yrs 5 mos)
    • International Electoral Observer
      Oct 2007 - Feb 2016 · 8 yrs 5 mos

      • Seasoned experience working successfully in diplomatic and political engagement in highly volatile contexts with high levels of uncertainty. • Managed teams of observers, led international teams, and served as international observer in 20 elections in Costa Rica (4), Haiti (2), El Salvador (2), Paraguay (2), Mexico, Honduras, Nicaragua, Dominican Republic, Jamaica, St. Lucia, Antigua and Barbuda, Peru, Bolivia, Ecuador.

    • Project Manager | Electoral Specialist
      Jun 2014 - Jul 2015 · 1 yr 2 mos

      • Managed and implemented projects providing technical cooperation to Board of Elections in Guatemala, Bolivia and Argentina aiming to protect citizen’s right to vote in upcoming elections. • Led new business development strategy by designing DECO’s main multi-year program, composed by 14 new projects, based on data analysis and needs-based assessments performed. • Wrote proposals, projects, reports and presentations regarding OAS technical cooperation work.

    • Specialist | Women's political participation and Political Financing
      Oct 2012 - Jun 2014 · 1 yr 9 mos

      • Co-authored a working paper on women’s political participation, gender, and political financing. • Contributed to the publication and implementation in three countries of the Manual on incorporating a Gender perspective into Electoral Observation Missions deployed by the OAS. • Served as Gender Expert for EOMs deployed in Antigua and Barbuda, Paraguay and Peru. • Produced technical reports, briefs, and presentations with political assertiveness on the current state of political and electoral campaign financing in the Americas. • Served as Political Financing Expert for EOMs deployed in Nicaragua, Ecuador, and Honduras. • Coordinated a team of 30+ on technical, administrative, logistical, and operational matters for the EOM deployed in Costa Rica for presidential elections in 2014.