As a Senior Writer, Editorial - Development, you will produce high-stakes, donor-facing written materials used by senior leaders and fundraising teams. This role is focused near-exclusively on writing-turning complex ideas into clear, compelling, and persuasive products that are ready for external audiences. This is a delivery driven role for a confident writer who thrives in an environment with high stakes, tight timelines, and senior-level visibility. How You Will Contribute • Operate comfortably in a fast-moving environment with parallel reviews, evolving inputs, and firm production deadlines. • Manage drafts and revisions across shared documents and source-of-truth materials, incorporating feedback efficiently while maintaining narrative clarity and quality. • Prepare communications for senior internal signers, including C-suite- executives, with attention to voice, credibility, and strategic intent. • Write and deliver core products including: • Investment Overviews • Pitch decks and presentation narratives • Customizable proposals for donors and partners • Executive emails and correspondence for senior leaders and partnership advisors • Donor-facing newsletters and campaign emails. What You Will Bring • Significant experience writing high-stakes communications for senior leaders, donors, or partners, ideally in philanthropy, nonprofit, mission-driven, or complex stakeholder environments. • Proven ability to own a communications stream end to end, from strategy and framing through execution and revision. • Strong editorial judgment and narrative instincts, paired with comfort working through dense feedback, multiple reviewers, and evolving direction. • Experience collaborating across functions such as events, marketing, fundraising, or partnerships. • Confidence writing for senior internal signers and navigating voice, tone, and positioning accordingly. • Exceptional organizational skills and attention to detail, especially in deadline-driven, multi-workstream contexts. • Enthusiasm to contribute to Stand Together's vision and principled approach to solving problems, and a commitment to stewarding our culture, which champions values including transformation and innovation, entrepreneurialism, humility, and respect. What We Offer • Competitive benefits: Enjoy a 6% 401(k) match with immediate vesting, flexible time off, comprehensive health and dental plans, plus wellness and mental health support through Peloton and Talkspace. • A meaningful career: Join a passionate community of over 1,300 employees dedicated to improving lives and driving innovative solutions to complex social challenges. • Commitment to growth: Thrive in a non-hierarchical environment that empowers employees to discover, develop and apply their unique talents. • Competitive compensation: Our approach rewards the value you create through competitive salaries and bonus opportunities, allowing you to share in the success you help drive.