Increase Revenue with A/B Testing and CRO.
Data and AI-Driven.
Together, we will set up an A/B testing infrastructure and enhance test velocity with AI-driven processes to boost your product department's full potential.
5 A/B Testing Challenges I Solve
Common obstacles that prevent companies from getting results with A/B testing — and how I help overcome them.
"We're only running one test at a time."
Solution: Run multiple A/B tests simultaneously without compromising results.
- Increase testing speed by 10x
- Reach higher conversions faster
- Implement proper test segmentation
"We don't know what to test next."
Solution: Build a structured test ideation process that works.
- Generate high-impact ideas from user research
- Prioritize changes with highest potential ROI
- Eliminate guesswork from your testing program
"Our messaging doesn't resonate with our audience."
Solution: Find what connects with users through systematic testing.
- Accelerate your path to product-market fit
- Identify language patterns that drive conversions
- Optimize feature presentation and pricing
"We struggle to build a data-driven culture."
Solution: Create processes that make data-driven decisions stick.
- Implement structured documentation systems
- Establish knowledge sharing practices
- Create test review rituals that value learning
"We have ideas but struggle with implementation."
Solution: Get hands-on support from design to technical execution.
- Ensure tests launch correctly and collect reliable data
- Handle technical details for you
- Free your team to focus on strategy and growth
My Method
Accelerating conversion optimization through strategic experimentation
Traditional Approach
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1. Sequential Testing Run one test, wait for results, then start next test
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2. Low Velocity Only a few tests per month/quarter
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3. "Ship and See" Mentality Push changes live without proper validation
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4. Isolated Efforts Testing disconnected from product strategy
My Method
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1. Overlapping Test Strategy Multiple tests running simultaneously in isolation
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2. Accelerated Test Velocity 10x more tests in the same timeframe
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3. Optimized Testing Workflow From ideation to implementation and analysis
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4. Team Integration Collaborative approach with product teams
"Valentin transformed our experimentation program at inne. He built a true testing culture from scratch, enabling our team to run their own tests. His structured approach sped up our testing and boosted our conversion rates. I was impressed by his quick impact – within just one week we had multiple tests up and running. Valentin combines deep technical knowledge with practical know-how, making him invaluable for any company wanting to improve conversions."
"Valentin transformed the A/B testing approach across both our companies - Truely and International Drivers Association. Before his help, we relied on developer-implemented tests which severely limited our testing velocity. Valentin showed our teams how to effectively use the Convert.com editor and implemented a streamlined ideation process. The results were immediate - we went from running a handful of tests to a robust testing calendar at both businesses. His hands-on training meant everyone could create and implement tests independently, significantly improving conversion rates for both our eSIM service and IDP offerings. I highly recommend Valentin to any company looking to accelerate growth through data-driven decisions."
"Valentin kick started our A/B testing and helped us set up impactful tests and increase revenue"
"I had the pleasure of working with Valentin Yeo as a freelance UX consultant at trivago. Valentin's keen insights and user-centered approach were pivotal in enhancing our product's user experience. His ability to bridge the gap between design and functionality is truly commendable. Valentin's professionalism, innovation, and collaborative nature make him an asset to any team. Highly recommended."
"Working with Valentin has been an absolute game-changer. His massive experience in CRO shines through in every step of the process. Communication with him is always swift, professional, and to the point. Valentin's ability to work independently and proactively is outstanding—he quickly identified the key KPIs we needed to focus on and provided invaluable support in optimizing them. The results speak for themselves: an above-average success rate in split tests and tangible improvements across the board. If you're looking for a CRO expert who delivers results with professionalism and expertise, Valentin is the one. Absolute recommendation—go for it!"
Tools I Use
A/B Testing Platforms
VWO (Visual Website Optimizer)
Convert.com
Optimizely.com
PostHog
Analytics & Research
Google Analytics
Hotjar
UserTesting.com
Custom analytics dashboards (Looker)
Process Management
AI supported Kanban system for test management (Hypertasks)
Kanban/PM tools (Linear, Jira, Notion, etc.)
Test prioritization framework (ICE)
AI-driven processes for test velocity (ideation, ticket creation, mockups)
VWO Copilot for ideation
Implementation
Cline.ai for early mockups
Figma
Visual editors (VWO, Convert.com) with AI support