work · product
A product, end to end
We design, build, run and support a consumer app end to end — from its first version to its support line. It has passed 350,000 downloads and serves tens of thousands of customers every month. Running a product at that scale keeps our consulting honest: we give the same advice we live with.
The shape of it — the smallest useful version first, then grown by what its users actually did.
350,000+ downloads. Still running.
work · advertising & attribution
Attribution at global scale
We have designed and built advertising and attribution systems that operated globally — the plumbing that works out what a click was worth, across markets and platforms, so spend decisions rest on measurement rather than opinion.
The shape of it — pipelines and models turning raw advertising and event data into numbers a budget owner could act on.
Ran globally.
work · data engineering
How do you open a 1TB CSV?
Five and a half billion rows in a single file — too big for a spreadsheet, an editor, or most databases’ patience. A real engagement, and a fair question.
The shape of it — a pipeline that streamed, partitioned and shaped the file into something queryable, so answers took seconds instead of not arriving at all.
You don’t open it. You stream it.
work · applications
Applications built for companies
We have designed and built applications companies use every working day — tools shaped around how the work actually runs, not how the org chart says it should.
The shape of it — the smallest version that earns its keep, delivered, then grown.
Named on request, not on the web.
Much of what we do isn’t ours to talk about. References and specifics on request.
What clients keep
Every engagement leaves the same four artefacts behind. They are yours whether or not we ever work together again.
artefact · 01
The findings memo
What we saw, in plain words. Short enough to read, specific enough to act on.
artefact · 02
The measurement baseline
The numbers before we touched anything — so “better” means something afterwards.
artefact · 03
The built thing
Running, documented, handed over. Yours to run, change, or switch off.
artefact · 04
The map of what’s next
What to build, what to buy, what to leave well alone — in order.
Ask for a referenceWe’ll put you in touch with someone we’ve worked with. hello@forestgreen.digital