← Back to notes

NOTES & REFLECTIONS · December 2025

The Journey to FinTech

By Yaxin Li · 2 min read · From the writing archive


Welcome to my blog! 👋 I’m excited to kick things off by sharing my journey into FinTech – a path shaped by a love for numbers, a curiosity for patterns, and a desire to turn data into meaningful, real‑world decisions. What began with mathematics and finance gradually evolved into data engineering and, ultimately, into building and executing data‑driven risk strategies.


Past

My journey started with a strong foundation in mathematics and finance, where I learned to think rigorously about uncertainty, risk, and quantitative reasoning. Early on, I was drawn to how abstract numbers could translate into real financial outcomes that affect people and businesses.

I later moved into data engineering, working closely with commercial loan portfolios. During this phase, my focus was on:

This period shaped my core belief: data is only powerful when it is trustworthy and accessible. Clean pipelines, reproducible logic, and well‑documented datasets are the foundation of every good model and decision.


Present

Today, I work at the intersection of FinTech, credit risk, and strategy execution, where data directly informs lending decisions. I act as a developer. In credit risk, every choice matters—pricing, approvals, and policy rules all carry real consequences for both borrowers and institutions.

In my current role, I contribute to building and implementing credit strategies that aim to be:

My work goes beyond writing code or running analyses. It involves translating data into insights that stakeholders can trust, and turning those insights into decisions that shape real financial products.


Future

Looking ahead, I’m excited about deepening my work at the intersection of FinTech, machine learning, and data‑driven decision‑making. Beyond my day‑to‑day role, I actively explore predictive modeling and signal generation through Kaggle competitions, where I refine my understanding of machine learning in a hands‑on way.

Through this blog, I plan to share thoughts and lessons on:

Thank you for being here and joining me on this journey. I hope these reflections resonate with others who are curious about data, finance, and how thoughtful decision‑making can create real impact.

← Explore more notes