Job Title: Senior Copywriter
Location: London

Company Overview:
We're partnering with this hugely exciting start-up in the AI fintech space: an AI workflow builder transforming how major financial institutions produce and validate client-ready work. The platform converts complex, manual processes into fully automated AI systems that scale across global teams. In under a year, it has become one of the fastest-growing enterprise AI platforms worldwide and recently closed a $75 million Series A, one of the largest fintech Series A rounds ever. The round was backed by FT Partners, Y Combinator, LocalGlobe, QED, 13books, and other top global investors, bringing total funding to $90 million.

The Role:
Weʼre looking for a Senior Copywriter with strong conceptual instincts and the range to move fluidly between campaigns, product storytelling, and long-form narrative work. Youʼll help define how the brand speaks, from the lines that power the biggest campaigns to the long-form content that educates customers and strengthens SEO impact.

Youʼll be one of the early voices shaping a category that has almost no established language. Youʼll develop campaign ideas, craft narratives for major launches, write scripts and lines that become iconic, and build a tone that scales across every channel.

Youʼll partner closely with the Creative Director, Senior Brand Designer, Marketing Lead, and Product teams to turn complex ideas into simple, compelling stories. This role blends advertising creativity with product storytelling and brand building at speed.

This role is five days a week in the London office, and long hours should be expected.

What Youʼll Be Responsible For:

• Help define, refine, and evolve the brands voice across all platforms.

• Generate strong creative concepts for campaigns, launches, OOH, and digital marketing.

• Develop platform ideas, headlines, scripts, and narratives that anchor brand and product storytelling.

• Create copy frameworks for social, motion assets, landing pages, and integrated campaigns.

• Develop messaging playbooks and language systems that scale across teams and markets.

• Write crisp, insightful lines that cut through noise and convey technical ideas with simplicity and energy.

• Write scripts and storylines for product explainers, campaign videos, and keynotes.

• Work closely with designers, motion artists, and leadership to bring ideas to life across mediums.

What You Can Expect:

• Youʼll be building from zerono templates, no red tape.

• Youʼll collaborate directly with the CEO, Marketing Lead, and Sales team, influencing brand and visual identity at the highest level.

• Priorities will shift. Deadlines will tighten. Youʼll be uncomfortable but constantly learning.

• It will be the most creatively and intellectually demanding work of your career.

What Weʼre Looking For:

• A deep sense of ownership, curiosity, and pride in producing exceptional work.

• 5 to 7 years of experience as a copywriter or creative in advertising, brand, or product marketing.

• A portfolio showing strong conceptual thinking, crisp headlines, compelling narratives, and long-form writing.

• Ability to move between campaign ideas, product messaging, and editorial content with ease.

• Experience writing for web, social, OOH, video, SEO, and integrated campaigns.

• Comfort collaborating with creative and technical partners.

• High standards, low ego, and the ability to operate at speed without sacrificing quality.

• A desire to build something category-defining.

What We Offer:

• Direct access to the founding team (2× YC-backed exits).

• Competitive salary + meaningful equity.

• A rare chance to define how enterprise AI should feel and function.

• A culture of high trust, high intensity, and high impact.

To Close:
Weʼre assembling a small team of people who want to build something iconic and are willing to sacrifice for it. If youʼre hungry, smart, and ready to make your defining career move, weʼd love to meet.