Note: The job is a remote job and is open to candidates in USA. Cro Metrics is an experiment-led growth marketing agency that helps organizations and brands improve digital experiences through data-driven experimentation and integrated growth services. The Copywriter - Conversion & Growth will create hypothesis-driven copy for paid media, landing pages, A/B tests, email, and SMS campaigns across B2B and B2C clients, while collaborating with strategists and designers. The role also involves building and managing brand-specific AI writing agents to scale on-brand copy production.
Responsibilities
- Write paid media ad copy across platforms (Meta, Google, LinkedIn). This includes headlines, descriptions, and creative copy that drives clicks and conversions
- Produce landing page copy from briefs and wireframes, collaborating with designers to ensure messaging and layout work together
- Write conversion-focused copy for A/B tests. This could include headline variants, CTA copy, value proposition rewrites, and messaging hierarchy tests where each variant is mapped to a clear hypothesis
- Write email and SMS copy for lifecycle campaigns (welcome flows, abandoned cart, win-back, promotional sends) within client brand voice guidelines
- Rewrite underperforming copy based on test results and analytics, diagnosing what's not working and proposing data-informed alternatives
- Adapt quickly to new client brand voices, absorbing voice guides and existing copy to produce on-brand work from the first deliverable
- Collaborate closely with strategists on hypothesis development. Your copy is the execution layer of their experimentation roadmap
- Manage your workload across multiple concurrent clients and projects, communicating proactively about capacity, timelines, and blockers
- Use AI tools to accelerate drafting, variant generation, and research while maintaining the craft, originality, and strategic rigor that make great copy
- Build, train, and manage brand-specific AI writing agents. You’ll be creating custom prompts, voice calibration files, and guardrails so AI output stays on-brand for each client. Maintain and iterate on these agents as client voices evolve
Skills
- 2–4+ years of experience in conversion copywriting, direct-response writing, CRO copy, or performance marketing copy
- Experience writing paid media copy (Meta, Google, LinkedIn) with awareness of character limits, platform specs, and creative best practices
- A portfolio demonstrating copy that was written to be tested, such as paid ads, landing pages, headline variants, or email campaigns with clear strategic framing
- Ability to write across multiple brand voices quickly and accurately. You can absorb a voice guide and produce on-brand copy on the first pass
- Strong strategic instinct. You understand why copy converts, not just what sounds good. You think in hypotheses, value propositions, and objection handling
- Experience writing for digital channels: web (landing pages, PDPs, funnels), paid media (social and search ads), and email/SMS
- Comfort with volume and speed. You can produce multiple variants quickly without sacrificing quality or strategic thinking
- Clear communication skills. You ask good questions about briefs, flag ambiguity early, and explain your copy rationale to non-writers
- Self-directed and reliable. You manage your time well, meet deadlines consistently, and don't need to be micromanaged
- This role requires active, demonstrated use of AI tools in your daily workflow — and goes further. You'll be expected to build and manage brand-specific AI writing agents that the team can use at scale
- You'll be asked to show concrete AI-integrated workflows and agent-building experience during the interview process
- Candidates who cannot demonstrate practical AI tool use and agent creation will not advance
- Experience at an agency or in a multi-client environment where you managed competing priorities and fast turnarounds
- Experience writing copy for CRO, experimentation, or growth marketing, not only just brand or content marketing
- Experience writing paid media and email copy with awareness of character limits, platform specs, and creative best practices
- Demonstrated experience building AI writing agents, such as custom GPTs, Claude projects, or similar tools configured with brand voice, tone rules, and output guardrails for specific clients
- Cro Metrics is a U.S.-based remote company and is not able to hire in CA, AK, WA, OR, HI, NY, or NJ, or outside of the United States
Benefits
- Remote (U.S.)
- The first 5–10 business days of the engagement are a paid evaluation period.
- Pay for all hours worked
Company Overview