Senior Copywriter, New York

Job Description

Sia Experience—a strategy-first creative agency within the global Sia consultancy—is hiring a Senior Copywriter with the strategic instincts of a creative lead and the craft of a true wordsmith. You can write headlines that stop the scroll and bring thoughtful ideas to an open brief. You're collaborative, conceptual, and capable of crafting brand storytelling across campaigns, social, and content systems. 

You’re an experienced Copywriter not just here to get it right—you’re here to make it better. This role is for someone who sees copy as a creative discipline, not just a correctness exercise. You bring energy to early-stage briefs, contribute ideas that shape the direction of the work, and can flex across tones, platforms, and formats. If you’re a conceptual thinker who also happens to love a well-placed comma, you’ll thrive here. 

What You’ll Do 

Write copy for campaigns, social, digital content, scripts, websites, and branded storytelling 

Participate in early-stage concepting and creative ideation, not just when the deck is half built 

Contribute ideas in brainstorms—bringing references, culture cues, and unexpected angles that push the work 

Adapt tone and voice across clients and sectors—from buttoned-up B2B to playful consumer brands 

Support brand narrative work—messaging frameworks, taglines, positioning—but with an understanding that not all work is foundational or voice-defining 

Work closely with designers, strategists, and ACDs to ensure cohesive creative across touchpoints. You don’t just hand off files—you provide context, rationale, and the clarity needed for teams to build on your work. Organized, communicative, and proactive, you’re someone others trust to move the work forward. 

You deliver clean, grammatically sound, polished copy that sets others up for success—not just in format, but in intent—but you also bring creative range, pop culture fluency, and a talent for shaping ideas beyond the words on the page (bonus points if you’ve ever argued passionately about the Oxford comma)

What Success Looks Like 

Your writing moves the work forward—it's clear, original, strategic, and pushes creative thinking beyond the brief 

You contribute meaningfully to creative development, bringing ideas that clients buy into and teams rally around 

Your copy reflects fluency in cultural and platform trends, while still serving brand goals and strategy 

You thrive in ambiguity, embrace open-ended challenges, and help shape campaign narratives from the start 

Internal teams count on you not just to write well, but to elevate the creative across channels