01
Personal Telegram Bot
A personal assistant living in Telegram. Modular architecture with feature autoloading, a flow state machine, and a deterministic test harness.
Node.js · Telegram API · Railway
Pure Mathematics, Data & Machine Learning — New York
Tay Yong
Mathematics and Data Science & Analytics Double Major and a minor in Philosophy in the National University of Singapore (NUS)
PythonSQLPySparkDatabricksMachine LearningAstroNode.jsTableauRFeature EngineeringPythonSQLPySparkDatabricksMachine LearningAstroNode.jsTableauRFeature Engineering
01 — Experience
012026 —
ONDO
AI Engineer, Data and Operations Intern
Sustainable DTC sock brand in New York. Building the internal tooling layer: automated waitlist milestone tracking, retention marketing dashboards and a competitor intelligence tool amongst others.
022026
DSO National Laboratories
Research Intern
Mathematical research into the security assumptions behind next-generation cryptographic standards. Combined pure mathematics and experimental work to rigorously prove cryptographic standards.
032025
Shopee
Business Analyst Intern
SQL dashboards tracking first-mile delivery KPIs across five Southeast Asian markets, surfacing the operational gaps that cut average delivery time.
042025
Singtel
AI / Data Science Intern
Analysed 10M+ row customer datasets in PySpark and Databricks to isolate churn risk segments, feeding a retention campaign aimed at 50,000+ subscribers. Built and validated a predictive model end to end.
02 — Projects
02
Pulse
Co-founded a fitness tech startup building wearable biomechanics tracking. Led a four-person team from ideation to a shipped MVP.
Product · Computer Vision · Mobile
03
Pairs Trading Backtest
Mean-reversion strategy on the MA–V pair via Engle–Granger, with dynamic z-score entry and exit. Walk-forward tested on 2016–2025 out-of-sample data.
Python · statsmodels · pandas
04
Sentiment Analysis
TF-IDF pipeline over review text. Compared vectorisation and model choices across themes; pushed accuracy past 80%.
Python · scikit-learn · NLTK
03 — Coursework
Year 1 · Semester 1
MA1100Basic Discrete Mathematics
MA2001Linear Algebra
HSS1000Understanding Social Complexity
HSA1000Asian Interconnections
UTW1001THow Rich Should Anyone Be?
Year 1 · Semester 2
CS1010SProgramming Methodology
DSA1101Introduction to Data Science
IT1244Artificial Intelligence: Technology and Impact
MA2002Calculus
UTC1420Beyond Borders: Migrant Community & Resilience
HSH1000The Human Condition
Year 2 · Semester 1
CS2040Data Structures & Algorithms
MA2104Multivariable Calculus
MA2116Probability
DTK1234Design Thinking
HSI1000How Science Works, Why Science Works
UTC2410BCommunity, Culture, Conservation: Insights from Nepal
Year 2 · Semester 2
MA2101Linear Algebra II
MA2108Mathematical Analysis I
MA2202Algebra I
ST2132Mathematical Statistics
GEX1015Life, The Universe and Everything
UTS2406Beyond Seeing: Looking At Art
Year 3 · Semester 1Exchange — National Tsing Hua University, Taiwan
MATH301000Ordinary Differential Equations
MATH345000Cryptography
MATH351000Introduction to Topology
MATH503000Functional Analysis
Year 3 · Semester 2
DSA2102Essential Data Analytics Tools: Numerical Computation
DSA3102Essential Data Analytics Tools: Convex Optimisation
MA3211Complex Analysis I
ST3131Regression Analysis
HSI2013The Science of Music
Year 4NUS Overseas College — New York
NOCYear-long startup internship placement
04 — Contact
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