Danny Teo Yong Song

Danny Teo Yong Song

Consultant · Builder · AI, data & software

Work with me

Consultant · Builder · Portfolio

From sprint to shipped prototype.

I help teams turn ideas into working prototypes in 3-day sprints—then iterate with users and harden what works.

AI, data, security, and product storytelling—expressed as live apps and honest write-ups, not slideware.

Consulting profile, talks & workshops →

Where builds cluster

AI / ML
Security
Data
Storytelling

Capability snapshot

Breadth at a glance—illustrative, not a scorecard.

Capability emphasis across six domains Hexagon radar: AI and ML, data, security, consulting, storytelling, engineering.
  • 90% AI & ML
  • 92% Data & ML
  • 75% Security
  • 85% Consulting
  • 82% Storytelling
  • 88% Engineering

Two sites, one thread

Use this page for builds and demos; use the professional site when you need talks, training, or a formal consulting conversation.

Portfolio · teoyongsong.github.io

Code-forward

  • Live Streamlit apps and project write-ups
  • Blog: implementation notes and learning resources
  • Open repos and reproducible experiments

Explore flagship projects

Consulting · dannyteo.github.io

Engagement-forward

  • Speaking, workshops, and capability building
  • Advisory and transformation context
  • Fuller professional profile and contact paths

Open professional site

Latest insight

Notes on delivery and how technology supports business—not only repo READMEs.

Other apps & experiments

Everything beyond the flagships—still real work. Expand to browse; keep the page focused on demos above the fold.

Show 11 more projects (segmentation, quizzes, pipelines, full-stack…)

Online Retail Customer Segmentation

Unsupervised learning project using RFM features: KMeans baseline + GMM comparison, with segment profiling and recommended CRM actions.

View project →

Python & ML practice quizzes

Streamlit-hosted practice quizzes: seven topics, random draws from a question bank; HTML/JS app bundled and shown in an embedded view.

View project →

Quantum Dice

Qiskit circuit that models two fair six-sided dice: Aer simulation, Streamlit UI, and a standalone browser histogram matching the same statistics.

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CISSP Domain Quizzes

Streamlit-hosted CISSP practice: eight domains, 2024 weights, CAT-style timer, full exam — HTML/JS quiz embedded in Streamlit.

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Web Safety Checker

Streamlit app + Python API: web, email, and network safety checks with extended heuristics and PDF reports.

View project →

teoyongsong.github.io (Portfolio)

Personal portfolio site on GitHub Pages: about, blog, project showcase, and contact.

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SG Accounting

Full-stack accounting app for Singapore professional-services companies: clients, invoices, expenses, dashboard, and reports.

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HDB Resale Prices

Interactive Streamlit app to explore Singapore HDB resale data by town, flat type, and period.

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Activity Tracker

Personal web app to log and review daily activities across work, health, and learning.

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Olist E-Commerce Data Pipeline (BigQuery)

ELT pipeline: Olist CSV → BigQuery raw → dbt star schema, with Dagster orchestration and data quality checks.

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LMS (Library Management System)

A web-based Library Management System with React + Spring Boot: book catalog, users/roles, borrowing workflow, and overdue tracking.

View project →

About

I help teams turn ideas into working prototypes in 3-day sprints—so stakeholders see something real before committing to a long programme.

Consultant and builder: strategy, software, and data together—not slideware. This site is code and demos; dannyteo.github.io is speaking, training, and formal consulting.

Work together

Consulting & projects

Sprints, workshops, and advisory—same person as these builds, scoped for your team.

Open consulting profile

Email for project briefs

teo_yongsong@yahoo.com.sg

Open in your email app instead (may ask which app to use).

Prefer chat? Use Contact below for WhatsApp and social links.

Contact

WhatsApp: Say Hi on WhatsApp

Email: teo_yongsong@yahoo.com.sg

GitHub: github.com/teoyongsong

LinkedIn: Linkedin.com/in/teoyongsong

Professional site: dannyteo.github.io (speaking, training, consulting)

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