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How I Transitioned from Analyst to Data Scientist in Less Than 12 Months

Claudia Ng
TDS Archive
Published in
6 min readAug 24, 2024

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Image by fancycrave1 from Pixabay

My data science journey began with a crisis.

At 9:01am on Monday morning, my phone buzzed with a PagerDuty alert. Instinctively, I pulled up the company dashboard and saw that loan approval rates had doubled overnight.

My heart started pounding.

I was a risk analyst at the time managing a lending portfolio. Approving loans for a higher-risk segment could have a big impact on loss rate.

Bleary-eyed, I dove into the data.

I frantically:

  • Wrote SQL queries to pull data,
  • Analyzed data in Python trying to spot anomalies,
  • Looked for patterns that could explain the sudden spike in approval rates.

I discovered that one specific feature in the credit model had drifted.

Turns out it was a simple timezone error.

This incident marked a turning point in my career, and was the beginning of my journey going from data analyst to data scientist.

Don’t start from zero

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TDS Archive
TDS Archive

Published in TDS Archive

An archive of data science, data analytics, data engineering, machine learning, and artificial intelligence writing from the former Towards Data Science Medium publication.

Claudia Ng
Claudia Ng

Written by Claudia Ng

Data Scientist | FinTech | Language Enthusiast

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