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Jarryd Aubert.

I build to understand what I test.

To test software well, I wanted to feel what building it is actually like. So I've shipped my own apps and sites, start to finish, and held them to the same scrutiny I'd give anyone else's.

See the projectsWhy I build

01 Projects

What I built, and tested properly.

Live

PayeTax

A live UK PAYE, salary, and dividend calculator.

What I built
I chose it because it gave me something a tester wants: a clear right or wrong answer. The work forced me through messy inputs, including Scottish rates, student-loan thresholds on total income, and salary/dividend choices.
It matches my own payslip to the penny.
What it shows
How I check software when there is a right answer and real numbers to compare.

Visit PayeTax

How I tested it, and where that testing stops

Live

ProsePal

A live message-writing app.

What I built
I built and shipped it as a real app, then used it to explore the harder problem of judging output where there is no single right answer.
A message can be grammatically perfect and still completely wrong for the moment. A normal pass-or-fail test does not catch that, which is exactly the problem I am working through.
What it shows
How I judge software when there is no single right answer, only a better or worse fit for the person using it.

Visit ProsePal

02 The Why

I build to understand what I test.

I wanted to feel firsthand what building software is actually like, from buying a domain and setting up the code to putting it online, watching how people use it, and living with my own bugs.

Going through that pain changed how I test, because now I understand more of where software actually hurts. The awkward handoffs, the unclear decisions, the things that only break in odd situations, and the small details before launch all feel different when my own name is on the thing.

Writing

Notes on testing, building, and shipping software I can stand behind.

I tried to prove my tax calculator was right. I mostly proved it agreed with itself.

AI demos reward speed. Shipping rewards judgement.