Services

Core retainer

A/B Test Development

For CRO agencies and consultants who need white-label build capacity, and e-commerce brands with a testing roadmap but no developer resource.

What's included

• — A fixed number of tests per month, built in your testing tool — Optimizely, Convert, VWO, Intelligems, or your in-house framework
• — Cross-browser, cross-device QA on real browsers: Safari (iOS + macOS), Chrome, Firefox, Samsung Internet
• — Anti-flicker implementation verified, SRM checks before each test launches
• — Launch support and clean handover documentation for each test

Entry offer

Experimentation Audit

For teams already running tests who suspect something's off — flicker, broken targeting, dodgy tracking, results they can't trust. The audit finds what's wrong before the next experiment makes it worse.

What's included

• — Technical review of your current test setup — snippet placement, tool configuration, tag manager interaction
• — QA of live or recently concluded experiments for flicker, targeting accuracy, and cross-browser behaviour
• — Tracking validation — are conversions being recorded correctly? Are events firing on the right variant?
• — Sample Ratio Mismatch check on past results — inconclusive results are often invalid results
• — Written report with prioritised fixes and, where relevant, how to implement them

Delivered within 2 weeks of access being granted.

If you'd like me to implement the fixes, the audit fee comes off your first month of test development.

Advisory

Experimentation Engineering Consulting

For teams moving from client-side testing to server-side, flag-based experimentation — or setting up an experimentation programme properly for the first time. I've done this migration inside large, high-traffic codebases. I know where it stalls.

What's included

• — Tooling selection — which platform fits your stack, your team size, your budget
• — Architecture for flag-based testing — SDK integration, assignment strategy, tracking design
• — Building the first experiments alongside your engineers — the first one takes three times as long, and that's fine
• — Upskilling the team so they can own the programme independently