Joshua Graham

S

Staff Data Scientist · Fraud detection · anomaly detection

Northgate Health
Melbourne, Australia · AEST (UTC+10)
12+ years experience
Monash University
English
Collaborating
Messaging unavailable

Overview

I work on fraud detection at Northgate Health in Melbourne. Cut false positives on payment blocks by 30%. Before that: EY and TSMC. Open-source contributor on weekends.

Good reasons to reach out
  • Collaborators for my side project
  • Questions about fraud detection
  • Second opinions on rules engines decisions
Please don't message about
  • Survey or panel invitations
  • Offshore staffing offers

Replies between meetings, usually same day

Skills
rules enginesanomaly detectionSQLLookerLightGBMPython
CollaboratingLooking to collaborate
closes in 3 months

Looking for collaborators on an open-source LightGBM toolkit

Project
An open-source LightGBM toolkit
Skills needed
anomaly detection, Marketing
Time commitment
A few hours a week
Outcome
Small product with real users

A few hours a week. Some groundwork already done.

Melbourne, Australia · remote OKlookersqlanomaly detection
Open

Experience

  1. Staff Data Scientist
    Sep 2022 - Present
    Northgate Health · 4 yr 1 mo · Full-time · Melbourne, Australia
    • Replaced 100 hand-built dashboards with one metrics layer people trust.
    • Taught SQL to 154 non-analysts.
    • Wrote the metric definitions the leadership team reviews every week.
  2. Data Analyst
    Apr 2021 - Sep 2022
    EY · 1 yr 5 mo · Full-time · Melbourne, Australia
    • Wrote the metric definitions the leadership team reviews every week.
    • Caught $3 million of fraud in the first year of the new models.
  3. Senior Data Scientist
    Aug 2019 - Apr 2021
    TSMC · 1 yr 8 mo · Contract · Melbourne, Australia
    • Wrote the metric definitions the leadership team reviews every week.
  4. Data Scientist
    Sep 2016 - Aug 2019
    Bank Central Asia · 2 yr 11 mo · Full-time · Melbourne, Australia
    • Wrote the metric definitions the leadership team reviews every week.
    • Caught $3 million of fraud in the first year of the new models.
  5. Data Analyst
    Aug 2014 - Sep 2016
    Toyota · 2 yr 1 mo · Full-time · Melbourne, Australia
    • Caught $8 million of fraud in the first year of the new models.

References

No references yet.

Education

  1. Monash University
    BCom, Physics
    2008 - 2012

Details

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