Director, Portfolio Management - Mozilla

About Mozilla.org

Mozilla is a mission-driven portfolio of companies and organizations working together to shape an internet that serves people and the public good.

Currently, this portfolio includes: the Mozilla Foundation, Mozilla Corporation (makers of Firefox), MZLA (makers of Thunderbird), Mozilla Ventures, Mozilla.ai, and Mozilla Data Collective, alongside smaller strategic investments and Mozilla's investment reserve.

Mozilla.org serves as a steward of this portfolio, managing assets and investments to advance the vision outlined in the Mozilla Manifesto. Over the coming years, our ambition is to actively grow the portfolio—helping existing organizations mature while creating or investing in new ventures that extend Mozilla’s reach and build long-term financial value.

About the Role

As a part of the Mozilla.org team, the Director, Portfolio Management sits at the intersection of portfolio planning, governance, performance management, and cross-organizational execution. This is a highly collaborative, hands-on role for an operator who can bring structure to complexity, translate portfolio priorities into clear plans, and ensure leaders across Mozilla have the information and operating rhythms needed to make effective decisions.

The role reports directly to Mozilla’s COO and is housed within the Mozilla Management Company.

Key Responsibilities

Portfolio Planning & Performance

• Lead the portfolio planning process, integrating organizational strategies, operating plans, capital requirements, and double bottom line goal setting.
• Develop and maintain the information architecture for portfolio management, including dashboards, scorecards, and reporting on priorities, performance, risks, and dependencies.
• Partner with Finance and operating leaders to connect strategic priorities, operating plans, and resource allocation.
• Synthesize information across the portfolio into clear insights, recommendations, and decision points for leadership.

Portfolio Governance & Operating Model

• Maintain and evolve operating frameworks, decision rights, authority matrices, and playbooks that clarify how Mozilla.org and portfolio organizations work together.
• Coordinate portfolio governance processes and help prepare materials for leadership and Board discussions.
• Identify opportunities to simplify processes, improve decision-making, and reduce unnecessary coordination across organizations.

Cross-Portfolio Execution

• Lead or coordinate high-priority initiatives that span multiple Mozilla organizations.
• Translate portfolio priorities into clear workstreams, owners, milestones, dependencies, and delivery cadences.
• Surface risks and execution gaps early and work with leaders across the portfolio to resolve them.

Leadership & Decision Support

• Serve as a strategic and operational partner to the COO and broader Mozilla.org leadership team.
• Design and facilitate portfolio-level operating forums and working sessions.
• Build trusted relationships across Mozilla’s portfolio organizations and influence effectively without relying on direct authority.

What You Bring

• 10+ years of experience in a multi-entity holding company, investment management, private equity, venture capital, or development finance organization.
• Direct prior experience in a portfolio-level role, strategy, business operations, or strategic program management.
• A strong connection to Mozilla’s mission and an interest in building an organizational model combining mission impact with strong operational discipline.
• Familiarity with Board governance and capital allocation processes strongly preferred.
• Strong analytical and problem-solving skills with the ability to synthesize complex information into clear recommendations.
• Expertise in managing qualitative and quantitative metrics tracking, dashboards, and systems thinking.
• Experience leading significant cross-functional initiatives involving senior stakeholders.
• Excellent written and verbal communication skills, with experience preparing executive-level materials.
• Strong judgment and discretion when working with sensitive organizational and leadership topics.

What Success Looks Like

You help Mozilla.org provide an effective management and coordination layer across the Mozilla portfolio. Leaders understand priorities and decision rights, portfolio decisions are supported by useful data, and cross-organizational initiatives move smoothly from strategy into execution.