A/B testingat Conversion.com,at enterprise scale.
Long-running contract with Conversion.com: 4+ years and 500+ A/B tests shipped on enterprise platforms for ecommerce, SaaS, publishing, automotive, and non-profit clients.
What it is.
A long-running contract with Conversion.com: production A/B tests in JavaScript, TypeScript, and SCSS on enterprise experimentation platforms. 500+ tests shipped across checkout flows, layout experiments, copy variants, and full-page redesigns.
The work spans single-element tests through full checkout-flow redesigns. I also built Radius, Conversion.com's internal insights & experiments platform.
Where the tests run.
- Optimizely
- AB Tasty
- Kameleoon
- VWO
- Adobe Target
- Qubit
Brands I've shipped tests for.
- The Times · news & publishing
- G-Star RAW · fashion
- Motorway · automotive
- Unity · gaming & SaaS
- Ironmongery Direct · ecommerce
- WaterAid · non-profit
- AdBlock · browser tech
- Deel · HR & SaaS
— and many, many more.
What I do.
Frontend developer on testing programs: direct client access, ownership through to launch.
- Translating designs and hypotheses into production-grade test variants
- QA across browsers, devices, and screen readers
- Working alongside designers, analysts, QA engineers, and CRO strategists
- Owning the build → review → ship loop on each test
The approach.
Tests aren't experiments if they're brittle. I write variant code the same way I'd write production code: readable, defensive, and survivable on third-party sites I don't control.
- Resilient selectors that survive minor DOM changes
- Performance budget: no test should slow the page
- QA across breakpoints before allocation goes live
- Clean rollbacks baked into every variant
Tools used.
- JavaScript, TypeScript
- SCSS
- Optimizely, AB Tasty, Kameleoon, VWO, Adobe Target, Qubit
- Browser DevTools
Let's ship
your next
test.
Hiring a frontend developer with deep A/B-testing experience? Whether it's a single test or a whole programme, I'd like to talk.
Start a conversation