Lorena Ramos

S

Director of Data Science at Saffron Ops · model governance, XGBoost

Saffron Ops
Mexico City, Mexico · CST (UTC-6)
13+ years experience
ITAM
English, Spanish
Hiring
Messaging unavailable

Overview

I lead credit risk modelling at Saffron Ops in Mexico City. Took the risk models through 5 regulatory model reviews. Built the risk models now used in 5 product decisions a quarter. Before that: Kavak and Mercado Libre. Most at home with model governance and Python. Board member at a local non-profit.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Questions about credit risk modelling
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  • Courses and coaching offers
  • Unpaid work or spec projects

Slower in the last week of each quarter

Skills
Pythonmodel governancecredit scoringXGBoostSQL
HiringHiring for a role
closes in 3 months

Building out risk at Saffron Ops: data scientists wanted in Mexico City

Role
Data scientist
Level
Senior
Type
Full-time
Work mode
On-site
Compensation
$136k-$186k + equity
Team
Risk, 17 people
Start
This quarter
Must have
Strong SQL and statistics Turns analysis into decisions Comfort with ambiguity
Process
Decision within 10 days

Comp R$28k-R$35k a month. One technical chat and a paid trial day. Message me with one thing you shipped that you're proud of.

Mexico City, Mexico · remote OKsqlmodel governancepython
Open

Experience

  1. Director of Data Science
    Oct 2024 - Present
    Saffron Ops · 2 yr · Full-time · Mexico City, Mexico
    • Wrote the metric definitions the leadership team reviews every week.
    • Took the risk models through 2 regulatory model reviews.
  2. Staff Data Scientist
    Jul 2022 - Oct 2024
    Kavak · 2 yr 3 mo · Full-time · Mexico City, Mexico
    • Taught SQL to 60 non-analysts.
    • Took the risk models through 3 regulatory model reviews.
  3. Data Scientist
    Jan 2019 - Jul 2022
    Mercado Libre · 3 yr 6 mo · Full-time · Mexico City, Mexico
    • Wrote the metric definitions the leadership team reviews every week.
    • Replaced 77 hand-built dashboards with one metrics layer people trust.
  4. Analytics Manager
    Aug 2017 - Jan 2019
    América Móvil · 1 yr 5 mo · Full-time · Mexico City, Mexico
    • Wrote the metric definitions the leadership team reviews every week.
  5. Data Analyst
    Dec 2013 - Aug 2017
    Itaú Unibanco · 3 yr 8 mo · Full-time · Mexico City, Mexico
    • Wrote the metric definitions the leadership team reviews every week.

Projects

Side project: a recipe search engine
2024

Built with credit scoring and model governance. 2029 people used it last year.

Write-up: credit risk modelling in practice
2023

A long-form guide to credit risk modelling for people starting out.

References

No references yet.

Education

  1. ITAM
    Licenciatura, Computer Science
    2002 - 2006

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