Senior Copywriter

Jellyfish is a global digital marketing agency. The Senior Copywriter creates performance-driven copy for global brands across channels, translating briefs and strategy into effective communications, using audience and performance insights, and collaborating with cross-functional teams to deliver and optimise work.

Responsibilities

• Write and edit high-quality, audience-first content across written formats, including digital ads, websites, landing pages, CRM and social
• Translate creative briefs, messaging frameworks and strategic direction into compelling copy, contributing ideas and recommendations where appropriate
• Lead copy-focused client discovery, gathering tone of voice and brand identity materials and developing content toolkits and sample content
• Oversee the execution of complex copywriting projects, ensuring a smooth and efficient workflow from project initiation to completion
• Take ownership of copy quality across projects, including briefing, writing, editing and quality assurance, supporting smooth and timely delivery
• Provide guidance and feedback to other copywriters where appropriate, helping maintain high standards across the team
• Skilfully use Pencil for AI-enabled copy creation, iteration and optimisation, testing and refining prompting and generation approaches to improve copy quality, consistency and performance
• Apply Pencil expertise to develop effective copywriting approaches across different assets and use cases, sharing best practices and learnings with the wider team
• Contribute to content and creative strategy, using audience, cultural, search and performance insights to develop messaging approaches and content recommendations
• Use audience, search and performance data to understand how copy is performing, identify opportunities and inform optimisation
• Design effective AI prompts and use agents or automated workflows to support and scale multi-step content tasks
• Stay current with developments in digital content, AI-enabled creation and the evolving digital landscape

Preferred

• Experience providing feedback, guidance or mentorship to other writers is a plus
• Mentoring
• Providing Feedback
• Guidance

Benefits

• Eligible to join the discretionary annual bonus scheme
• 401k retirement plan
• Healthcare, vision and dental insurance, plus short- and long-term disability and life cover
• Work remotely for up to 60% of your days
• Flexible working hours between 8am and 6:30pm
• 14 weeks of paid leave for primary caregivers
• 4 weeks of paid leave for secondary caregivers

Company

• Global digital marketing business creating AI-powered campaigns
• London, Greater London, GB
• http://www.jellyfish.com/
• Founded in 2005
• 1001-5000 employees

Qualifications

• 4+ years' experience in copywriting, ideally within an agency or working across multiple brands and digital channels
• Excellent copywriting and editing skills, with a portfolio demonstrating strong writing craft and the ability to adapt to different brands, audiences and tones of voice
• Experience writing across digital formats such as paid media, social, CRM, websites and landing pages
• Experience translating creative briefs, strategies and messaging frameworks into compelling copy
• Strong understanding of how audience insight, search and performance data can inform effective copy
• Experience using GenAI tools within copywriting or creative workflows, with strong prompting skills and curiosity around agents, automated workflows and emerging technologies
• Confidence contributing to messaging, content and creative recommendations
• Strong client-facing, communication and presentation skills
• Excellent attention to detail, organisation and quality control
• Experience collaborating across strategy, creative, media, data and other specialist teams
• Ability to manage complex projects and priorities while consistently delivering high-quality work
• Experience providing feedback, guidance or mentorship to other writers is a plus
• 4+ years’ experience in copywriting, ideally within an agency or working across multiple brands and digital channels

Required skills

• Copywriting, Digital Advertising Copywriting, Social Media Copywriting, CRM Copywriting, Website and Landing Page Copywriting, Pencil, Generative AI, Prompt Engineering, Audience and Performance Data Analysis, Messaging Strategy, Client Communication

Preferred skills

• Project Management

Experience

• 4+ years