Product manager, product coach, self taught programmer and start up founder over 7 years.
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Hi, I'm Jack

An experienced product manager, self-taught programmer and startup founder with over 7 years' experience building products people love.

Here's what I can bring to your team

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A/B Testing

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I have been lucky enough to have honed my product craft in strong, experimentation based environments. I have extensive experience with designing and running tests across both Web (using Optimizely) and App (using Leanplum). I am also well versed in a number of different types of testing from fake/painted door, to algorithmic, multi-variant, feature flagging and long term holdout groups, the last of which I introduced to Tesco for the first time to measure the accumulative impact of our roadmap.

Some of the things I have accomplished:

Ran 154 A/B Tests at Tesco, delivering over £350m in incremental annualised revenue
Deployed Tesco's first Web holdout group, Tesco's single most successful experiment from over 3000 run in the last 5 years, delivering £51m in incremental annualised revenue
Coached several product teams into running multiple tests per sprint in complex technical organisations
Used A/B testing to causate the relationship between a short term leading indicator (user friction) and a long term lagging indicator (order frequency) for the first time

Where you'll see me adding value:

Encouraging adoption of A/B testing across your organisation
Improving the speed and efficiency of your A/B testing capability
Using experimentation to drive quantifiable improvements in key business outcomes

By bringing my experience in:

Designing strong test hypotheses'
Aligning primary, secondary and health metrics
Managing complex sequencing of multiple experiments
Iterating quickly based on test results
Presenting results to generate further buy in

With extensive knowledge of:

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Having worked with these extremely talented folks:

My achievements in this field would not have been possible without the guidance and knowledge of incredible colleagues. If you're looking to work with other strong product people, I can't recommend these folks enough.

Sam Castro

Sam Castro (Experimentation)

Sam Castro

Sam was invaluable at all stages of testing. His ability to manage multiple testing programmes, provide full unchambered analysis of results in real time and advise colleagues across the organisation on what, how and why to test was unparalleled.

Raj Mudale

Raj Mudale (Engineering)

Raj Mudale

Raj led the technical intergration for many of the A/B tests I worked on during my time at Tesco. He was responsible for the early blueprint for our holdout group, its documentation and initial implementation. He was one of the most customer centric engineers I ever had the privillege of working with.