Darragh OConnor

S

Chief Data Officer at Harbor Works · anomaly detection, LightGBM

Harbor Works
Cork, Ireland · GMT (UTC+0)
12+ years experience
University of Edinburgh
English
Hiring
Messaging unavailable

Overview

Chief Data Officer at Harbor Works, focused on fraud detection. Wrote the metric definitions the leadership team reviews every week. Cut false positives on payment blocks by 41%. Before that: BAE Systems and Bank of Ireland. Volunteer coding coach for school students.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Working sessions on graph analytics
  • Questions about fraud detection
Please don't message about
  • Generic networking requests
  • Courses and coaching offers
  • Agency or outsourcing pitches

Fastest replies in the morning

Skills
LightGBMgraph analyticsrules enginesanomaly detection
HiringHiring for a role
closes in 3 months

Building out trust & safety at Harbor Works: data analysts wanted in Cork

Role
Data analyst
Level
Mid
Type
Contract
Work mode
On-site
Compensation
$134k-$175k
Team
Trust & safety, 18 people
Start
Within two months
Must have
Strong SQL and statistics Turns analysis into decisions Ownership of something end to end
Process
3 conversations, no take-home

Comp £84k-£153k. Three interviews over a week. Message me with one thing you shipped that you're proud of.

Cork, Irelandanomaly detectiongraph analyticsrules engines
Open

Experience

  1. Chief Data Officer
    Aug 2022 - Present
    Harbor Works · 4 yr 2 mo · Full-time · Cork, Ireland
    • Caught $3 million of fraud in the first year of the new models.
    • Cut false positives on payment blocks by 53%.
    • Replaced 50 hand-built dashboards with one metrics layer people trust.
  2. Data Scientist
    Feb 2021 - Apr 2022
    BAE Systems · 1 yr 2 mo · Full-time · Cork, Ireland
    • Taught SQL to 104 non-analysts.
  3. Analytics Manager
    Oct 2019 - Feb 2021
    Bank of Ireland · 1 yr 4 mo · Full-time · Cork, Ireland
    • Taught SQL to 41 non-analysts.
  4. Data Analyst
    Sep 2017 - Oct 2019
    Deliveroo · 2 yr 1 mo · Full-time · Cork, Ireland
    • Caught $9 million of fraud in the first year of the new models.
  5. Senior Data Scientist
    Jan 2015 - Sep 2017
    Kainos · 2 yr 8 mo · Full-time · Cork, Ireland
    • Caught $4 million of fraud in the first year of the new models.
    • Cut false positives on payment blocks by 32%.

References

No references yet.

Education

  1. University of Edinburgh
    MA, Physics
    2011 - 2013
  2. Queen's University Belfast
    BSc, Physics
    2005 - 2008

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