CRO Specialist, A/B Testing and Landing Page Optimization

CRO Specialist, A/B Testing and Landing Page Optimization

Splitsense | Remote (working London hours) | $60,000 to $90,000 per year, full time

About Splitsense

Splitsense is an AI platform that runs CRO on autopilot. It analyzes a customer's website, digs through analytics and session recordings, finds where visitors drop off, then writes and launches A/B tests on its own.

Our customers are founders and small growth teams who don't have a CRO specialist or spare engineers. We give them one, powered by AI. Your job is to make that AI as good as the best human in the field. That's you.

To learn more about Splitsense, check out our automated A/B testing platform.

The role

You will be the conversion expert inside the company. You'll spend your time doing real CRO and UX work, and everything you learn feeds directly into how our product thinks. Concretely, that means:

• Run experiments on our own funnel. Audit our signup, onboarding and checkout flows, form hypotheses, launch tests, read the results and ship the winners. You'll use our own platform to do it, so you'll also be our sharpest internal user.
• Do landing page and UX audits. Review customer sites the way you would for a client: heatmaps, session recordings, funnel analysis, recommendations ranked by effort and impact. Your audit method becomes the method our AI follows.
• Train and evaluate our AI agents. Our system generates hypotheses, writes copy variations and picks what to test. You'll review its output, correct it, and turn your expertise into playbooks, checklists and scoring criteria that make it better every week.
• Write conversion copy standards. Headlines, CTAs, form copy, social proof. Define what good looks like so the AI can reproduce it.
• Shape the product. You'll work directly with the founders and engineers. When you say "a real CRO analyst would never call this test without checking sample size," we build that check into the product.

What we're looking for

• 3+ years of hands-on CRO, experimentation or growth work. Freelance, agency or in-house all welcome; many of the best people in this field are independent consultants.
• A track record you can show: documented experiments with before and after numbers, audit reports you're proud of, or case studies with real conversion lift.
• Fluency with analytics tools like GA4, PostHog, Mixpanel, Hotjar or Clarity, and testing tools like VWO, Optimizely or Convert. We have our own stack, so concepts matter more than any one tool.
• Solid experiment statistics: significance, sample size, and when a result is real versus noise.
• Clear, simple writing. You'll explain findings to customers and turn your thinking into instructions an AI can follow.
• Enough HTML and CSS to discuss what's feasible in a test variant with engineers.

Nice to have

• Conversion copywriting experience
• UX research background: heuristic reviews, user testing, surveys
• SEO or page speed knowledge (Core Web Vitals)
• Experience with SaaS onboarding funnels
• Experience prompting or evaluating AI systems

Pay, location and logistics

• Salary: $60,000 to $90,000 per year, depending on experience
• Location: fully remote, but your working day needs to overlap with London time (roughly 9am to 6pm UK).
• Team: small, senior and fast moving. You'll have real ownership from week one.

How to apply

Send us one experiment or audit you're genuinely proud of, with the numbers, and a few lines on what you'd test first on Splitsense. No cover letter needed.