Julia Carmen Goncalves

S

Head of Data at Ivory Grid · rules engines, LightGBM

Ivory Grid
Barcelona, Spain · CET (UTC+1)
12+ years experience
Bocconi University
English, Spanish
Hiring
Messaging unavailable

Overview

I lead fraud detection at Ivory Grid in Barcelona. Taught SQL to 76 non-analysts. Before that: Klarna and Wise. Most at home with anomaly detection and rules engines. Collector of fountain pens.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Questions about fraud detection
  • Thoughtful intros to people in my field
  • Speaking or podcast invitations
Please don't message about
  • Generic networking requests
  • Unpaid work or spec projects
  • Offshore staffing offers

Checks messages twice a week

Skills
SQLrules enginesPythonrankingLightGBManomaly detection
HiringHiring for a role
closes in 3 months

Hiring a founding data analyst for the trust & safety team - Barcelona

Role
Founding data analyst
Level
Senior
Type
Full-time
Work mode
On-site
Compensation
$137k-$184k + equity
Team
Trust & safety, 8 people
Start
Within a month
Must have
Strong SQL and statistics Turns analysis into decisions Clear written communication
Process
Two interviews and a paid trial day

Comp €67k-€118k. One technical chat and a paid trial day. Message me with one thing you shipped that you're proud of.

Barcelona, Spainrules enginespythonlightgbm
Open

Experience

  1. Head of Data
    Nov 2022 - Present
    Ivory Grid · 3 yr 11 mo · Full-time · Barcelona, Spain
    • Wrote the metric definitions the leadership team reviews every week.
    • Caught $4 million of fraud in the first year of the new models.
  2. Staff Data Scientist
    Sep 2021 - Nov 2022
    Klarna · 1 yr 2 mo · Full-time · Barcelona, Spain
    • Caught $3 million of fraud in the first year of the new models.
    • Cut false positives on payment blocks by 36%.
  3. Staff Data Scientist
    Dec 2017 - Sep 2021
    Wise · 3 yr 9 mo · Full-time · Barcelona, Spain
    • Replaced 93 hand-built dashboards with one metrics layer people trust.
  4. Staff Data Scientist
    Jul 2016 - Dec 2017
    Roche · 1 yr 5 mo · Full-time · Barcelona, Spain
    • Caught $5 million of fraud in the first year of the new models.
    • Cut false positives on payment blocks by 54%.
  5. Data Analyst
    Aug 2014 - Jul 2016
    Airbus · 1 yr 11 mo · Full-time · Barcelona, Spain
    • Wrote the metric definitions the leadership team reviews every week.

References

No references yet.

Education

  1. Bocconi University
    BSc, Economics
    2001 - 2004

Details

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