Thomas Parata

Head of Data at Ridge Health · Experimentation · Bayesian statistics, Python

Ridge Health

Sydney, Australia · AEST (UTC+10)

11+ years experience

Waseda University

English, Spanish

Co-founder

Messaging unavailable

Overview

20 years in data science and analytics, the last 1 at Ridge Health, where I lead the experimentation team. Ran 160 experiments last year and made the readouts self-serve. Wrote the metric definitions the leadership team reviews every week. Before that: NAB and HSBC. Most at home with CUPED and A/B testing.

Good reasons to reach out

People who want to build this with me
Thoughtful intros to people in my field
Second opinions on Bayesian statistics decisions

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Crypto token projects
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Skills

PythonA/B testingCUPEDSQLBayesian statistics

Co-founderLooking for a co-founder

closes in 3 months

Need a technical co-founder: invoice financing in MENA

The idea: Invoice financing in MENA
Stage: Customer interviews
I bring: 14 years in experimentation
Looking for: Technical co-founder who has shipped B2B software
Commitment: Full-time now
Location: Sydney or remote

I bring 20 years of experimentation (currently Ridge Health). Ideally you've shipped B2B software. Have a working prototype and design partners.

Sydney, Australiabayesian statisticspythona/b testing

Open

Experience

Head of Data
Sep 2025 - Present
Ridge Health · 1 yr 1 mo · Contract · Sydney, Australia
- Cut the time to a trustworthy experiment readout from 2 weeks to 4 days.
- Wrote the metric definitions the leadership team reviews every week.
Data Analyst
Nov 2023 - Sep 2025
NAB · 1 yr 10 mo · Full-time · Sydney, Australia
- Wrote the metric definitions the leadership team reviews every week.
Data Analyst
Jan 2022 - Nov 2023
HSBC · 1 yr 10 mo · Full-time · Sydney, Australia
- Ran 299 experiments last year and made the readouts self-serve.
- Wrote the metric definitions the leadership team reviews every week.
Staff Data Scientist
Jan 2019 - Jan 2022
ANZ · 3 yr · Full-time · Sydney, Australia
- Built the experimentation models now used in 10 product decisions a quarter.
Staff Data Scientist
Aug 2015 - Jan 2019
Visa · 3 yr 5 mo · Full-time · Sydney, Australia
- Replaced 77 hand-built dashboards with one metrics layer people trust.
- Taught SQL to 122 non-analysts.

References

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Education

Waseda University
BA, Computer Science
2001 - 2005

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