A/B Experiment Implementation
A/B test execution and UI/UX changes based on prioritized hypotheses. Covers test design, statistical setup, implementation in your testing tool, and analysis with documented winners and learnings.
What's included
- Hypothesis prioritization based on impact, confidence, and effort
- Test design with primary metric, guardrails, and sample size
- UI/UX changes built and QA'd across devices
- Implementation in your testing tool (PostHog, VWO, Optimizely, GA4 experiments)
- Statistical setup with proper traffic allocation and runtime
- Monitoring for sample ratio mismatch and data quality issues
- Results analysis with documented winners, losers, and learnings
- Shipping recommendations and follow-up test ideas
Why it matters
Most CRO programs stall because tests are poorly scoped, underpowered, or never properly analyzed. You get a steady pipeline of decision-grade experiments with a documented record of what works, what doesn't, and what to try next.
What clients say
“Thomas is patient, quick and very knowledgeable. I had a few projects that were under the gun a but he completed everything in a timely manner with great professionalism. I'll definitely be hiring him again in the future.”
Ameet Khabra
“One of the best SEM, advertising and analytics minds in the business! A great addition to any team looking to solidify or enhance their digital marketing efforts!”
Chris Brewer
“Thomas has been very good to work with. Thank you, Thomas!”
Social Jobs
What clients say
“Tomas at SmartMetrics has been fantastic to work with. He consistently delivers high-quality work quickly, communicates clearly and proactively, and makes even complex implementations feel straightforward.”
Gray Digital Group
5.0 on Google · All reviews“A huge difference to the business, and we know where the next dollar goes.”
Blitzy“We can scale spend now without guessing what is actually working.”
PermitFlow“Extremely knowledgable & capable!”
Dj Haer Jr
Work with Tomas
Founder, San Diego, CA
20 years in marketing, CRO, CRM, and analytics. Now building the systems AI runs on.
You work with me directly, from scope to delivery. No account managers.