Brand Copywriter (Part-Time, Freelance)

Mozilla

16h•Remote

About The Position

Mozilla Foundation is seeking a part-time freelance copywriter to translate complex ideas from research, policy analysis, and expertise into clear and accessible language for a general audience. The role focuses on campaign and marketing copy, ensuring that rigorous thinking is not confined to internal documents but is effectively communicated externally. This is an independent contractor opportunity, not an employment position.

Requirements

5+ years of experience writing brand or campaign copy.
Experience writing for mission-driven organizations, research institutions, or brands dealing with complex subject matter is ideal.
Portfolio demonstrating the ability to simplify technical or academic source material into genuinely readable content.
Comfort interviewing subject-matter experts and challenging jargon.
Strong editing skills with a focus on clarity.
Self-directed with the ability to manage own hours and meet deadlines without constant supervision.
Interest in AI accountability, privacy, and the open internet.

Nice To Haves

Experience in advocacy, campaigning, or public-interest communications.
Familiarity with SEO and performance copy basics.
Experience writing for global audiences.
Experience writing executive communications.

Responsibilities

Write campaign copy across various channels including web pages, email, social media, video scripts, and paid placements.
Collaborate with researchers, fellows, and program leads to transform their work into copy that satisfies expert scrutiny while resonating with a general audience.
Manage copy from concept to final delivery, including headlines, taglines, and calls to action (CTAs).
Adapt a core message into multiple formats without losing its essence.
Ensure the integrity of the source material, flagging any simplifications that alter meaning and finding alternative approaches.
Maintain a consistent brand voice across campaigns while allowing each campaign to have a distinct feel.