Projects About Contact Resume

Lucas
Sam

Data Analyst — Turning messy data into clear decisions

Selected Work

ECG waveform visualization
01
Capstone

Machine Learning · Healthcare

Heart On Your Wrist

Can a $300 smartwatch detect heart disease as reliably as a $3,000 clinical ECG? Achieved 0.91 AUROC and 84.4% sensitivity across 8,187 clinical ECG recordings — then validated the signal transfer to real wearable PPG data.

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W.O.W. Worth-Or-What HDB resale price prediction app
02

ML · Web App · Group Project

W.O.W. — Worth-Or-What?

Is that HDB flat actually worth it? Price estimator hit 95.13% R² and the town recommender 99.71% accuracy — trained on 270,620 transactions across 26 towns.

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JD-Match app interface
03

Web App · AI

JD-Match

Why do qualified resumes get rejected by ATS filters? Built a tool that scores alignment across 15 categories and rewrites weak bullet points in one click.

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Singapore Elections dashboard
04

Data Visualization

SG Elections 1955–2025

The Workers' Party averages 50.5% of every vote cast against them — yet holds just 9.3% of seats. Visualized 70 years of data to reveal why Singapore's quiet revolution is hidden in plain sight.

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Gender Pay Gap dashboard
05

SQL · Dashboard

Gender Pay Gap

Where does the glass ceiling hit hardest? Queried 10,000+ UK companies and found a 13-point drop in women's representation from entry to senior roles.

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About Me

I started my career in fitness, spending 4+ years as a personal trainer where I tracked client metrics, built data-driven training programs, and discovered that the part I enjoyed most was the analysis itself — identifying trends, measuring outcomes, and translating numbers into actionable plans.

That realization led me to pursue data analytics formally. I completed the Google Data Analytics Professional Certificate and General Assembly's Data Analytics bootcamp, where I deepened my skills in SQL, Tableau, and exploratory data analysis. I then started building tools to put those skills into practice — from an AI-powered resume optimizer to interactive dashboards, and most recently leading a 7-person team to ship a machine learning web app that predicts HDB resale prices with 95% R² accuracy.

I'm now looking for my first data analyst role where I can combine my analytical foundation, communication skills from working with non-technical clients, and a builder's mindset for creating tools that make data accessible. I'm drawn to problems where data is messy, stakeholders are skeptical, and the right visualization can change someone's mind.

Get in Touch

I'm always open to new opportunities, collaborations, or just a conversation about data and technology.

Email

lucas.sam93@gmail.com

LinkedIn

Connect with me

GitHub

View my repos