Major Gift Officer

At Mozilla Foundation, we believe the Internet should be a force for good — one that’s open, safe, and inclusive by design. Our mission is to ensure that the Internet is a global public resource that is accessible to all. We mobilize communities, fund bold ideas, and push for tech that serves people. Through advocacy, education, and open-source innovation, we work to make good on the Internet’s promise.

Mozilla Foundation is hiring for our first Major Gift Officer, reporting to the Vice President, Development. As a key member of our growing Development Team, you will build and lead our major donor fundraising efforts.

Purpose of role

The Major Gift Officer will create and drive our major donor strategy, turning generosity into lasting impact. You will lead on identifying, cultivating, and stewarding relationships with high-net-worth individuals who believe in the promise of a better Internet. You will craft compelling proposals, build tailored engagement plans, and help donors see how their support can move the needle on issues that matter.

This role is about relationships, not transactions. The Major Gift Officer will know how to earn trust, translate complex ideas with clarity, and spark long-term commitment. You will work closely with our program and storytelling teams to connect donor priorities with our mission — and shape the future of giving at Mozilla Foundation. Strong existing networks within philanthropy are a bonus, as is global fundraising experience.

Primary responsibilities

Donor cultivation, stewardship, and solicitation - 70% of time

• Manage a portfolio of 75 – 100 major donors and prospects, each with the potential to shape the future of the Internet.
• Build personalized strategies to cultivate, solicit, and steward high-net-worth individuals.
• Secure gifts of $50,000+ USD through thoughtful, well-timed asks and relationship-led engagement.
• Craft proposals and presentations that connect donor passions with Mozilla’s mission.
• Lead meaningful stewardship efforts — from events to one-on-one conversations — that deepen connection and commitment.
• Create custom impact reports that show donors the real-world results of their support.
• Partner with program teams to surface compelling stories and tangible outcomes.
• Write donor-facing communications, including briefings, updates, and thank-yous that feel personal and purposeful.

Prospect research and pipeline development - 15% of time

• Identify and qualify new prospects using research, networks, and curiosity.
• Leverage events, partnerships, and Mozilla’s ecosystem to expand the reach of our donor pipeline.
• Use data to guide strategy, sharpen outreach, and prioritize high-impact opportunities.
• Collaborate with the Mobilization team to build pathways from annual giving to major support.

Strategy and planning (15% of time)

• Identify and qualify new prospects using research, networks, and curiosity.
• Leverage events, partnerships, and Mozilla’s ecosystem to expand the reach of our donor pipeline.
• Use data to guide strategy, sharpen outreach, and prioritize high-impact opportunities.
• Collaborate with the Mobilization team to build pathways from annual giving to major support.

Experience

• 5+ years’ experience in major gift fundraising, preferably in technology, advocacy, or public interest organizations.
• Demonstrated success in personally soliciting and closing gifts of $100,000 or more.
• Experience building and maintaining donor relationships from identification through stewardship.

Skills

• Exceptional interpersonal and relationship-building skills. You know how to build trust, listen well, and connect with people across backgrounds and sectors.
• Ability to translate complex technical concepts into compelling philanthropic opportunities.
• Strong written and verbal communication skills including proposal writing, and presentation development and delivery.
• Expertise in donor cultivation strategies and moves management principles.
• Familiar with issues around internet health, digital rights, or technology policy — or eager to learn fast.
• Comfort with CRM systems and donor database management.
• Self-directed but deeply collaborative. You’re at ease working remotely while staying connected to a distributed team.

Terms and conditions

Candidates based in Canada, the United States, Germany, or the United Kingdom will be offered a standard employment contract. Individuals residing outside of these countries will be engaged through an Employer of Record (EOR) arrangement.

* Special considerations for high cost-of-living locations

We recognize the impact of living expenses in certain cities and adjust salaries accordingly. The following ranges reflect compensation for employees residing in high cost-of-living areas:

• London: £82,782 - £93,062 GBP
• New York: $127,750 - $143,611 USD

Benefits 

• Private medical insurance (health, dental, and vision).  
• Extended sick leave.
• Global Employee Assistance Program (EAP). 
• Retirement plan contributions. 
• Paid time off: 20 days annual leave and sick days and your birthday (prorated). 
• Company holidays and shutdown. 
• Wellness budget. 
• Professional development budget.
• Top-up program for pregnancy and parental leaves. 

Reminder: To apply for this role, you must submit your application through Global Charity Jobs.
Applications submitted via Greenhouse will not be reviewed. This posting is for visibility only.