Selected engineering work

AI / ML / Full-Stack

WaveMind

A native Windows application that turns live system audio into near-real-time transcription through an AI API.

Platform

Native Windows

AI / ML / Automation

Invoice Parser

Upload a PDF invoice, get structured JSON: vendor, line items, tax, totals. 3-tier extraction: layout analysis, regex patterns, LLM fallback. Every field schema-validated.

Extraction

Rule-based + LLM

AI / ML / Automation

Email Classifier

Classify inbound email into support, sales, spam, or internal. Two-stage pipeline: rule-based spam filter then TF-IDF + LinearSVC classifier. No external API calls.

Model

TF-IDF + LinearSVC

AI / ML / Automation

Ticket Router

Paste a support message, get it routed: urgency, department, and a suggested first response. Hybrid rule + sentiment + LLM pipeline with PII redaction.

Routing

Urgency + department

AI / ML / Full-Stack

Sentiment Dashboard

Upload customer reviews or messages, get a sentiment breakdown: positive/negative/neutral percentages, trend chart, and flagged negatives. VADER + optional LLM hybrid.

Throughput

~2,000 msg/sec

AI / ML

Demand Forecaster

Interactive forecasting: adjust season, price, promotions and see predicted daily sales shift. Gradient Boosting model with confidence intervals and feature importance.

Model

Gradient Boosting

AI / ML

Document Q&A

Upload a PDF, ask questions in plain English, get answers with page-number citations. RAG pipeline: chunk, embed, retrieve, generate. Grounded answers only.

Pipeline

RAG (retrieval-augmented)

Automation / Security

Spreadsheet Reconciler

Upload two CSVs (bank statement vs ledger), get a reconciliation report: matched rows, unmatched rows, discrepancies. Handles 100k+ rows with fuzzy matching.

Matching

Exact + fuzzy

Automation / Full-Stack / DevOps

Market Snapshot

Fetches Cisco's daily high/low and streams a live current price. Runs as a scheduled pipeline with a web view and JSON API.

Schedule

Daily

Full-Stack / AI / ML

GlobeScraper

Full-stack platform for English teachers in Southeast Asia. Community, AI blog engine, rental marketplace with a 7-source scraping pipeline.

API routes

55

AI / ML / DevOps

Weather ML App

A machine learning Flask app that predicts weather conditions from sensor inputs. Dockerised with full CI/CD and Kubernetes deployment.

Model

scikit-learn

DevOps / Full-Stack

Server Pulse

Live dashboard showing real-time CPU, RAM, disk, and uptime from a Hetzner CX23. Polls a Flask + psutil endpoint every 5 seconds.

Backend

Flask + psutil

DevOps / Full-Stack

Uptime Monitor

Background thread pings the portfolio API and site every 60 seconds. Graphs 24 hours of response times with Canvas charts.

Ping interval

60 seconds

AI / ML

Image Style Transfer

Upload any photo and apply a famous art style: Van Gogh, Munch, Picasso, and more. Fast neural style transfer running on the server with OpenCV DNN.

Models

7 styles

Security / Full-Stack

Security Scanner

Enter any URL and get a full security header audit: HTTPS, HSTS, CSP, clickjacking protection, and more. Live tool with A–F grading, SSRF-safe API, and detailed per-header findings.

Headers checked

9

DevOps / Full-Stack

Network Health Monitor

Add up to 5 endpoints and monitor them in real time. Polls every 15 seconds, shows status, response time, and SVG sparkline latency charts. SSRF-safe API with batch health checks.

Max endpoints

5

Full-Stack / AI / ML

SEO Auditor

Enter any URL and get a comprehensive SEO audit: meta tags, headings, structured data, images, links, performance, mobile-friendliness, crawlability, and an AI-powered action plan.

Checks

40+

Automation / DevOps

Data Pipeline

End-to-end data pipeline: ingest, validate, transform, and output structured data. Designed for reliability with retry logic and monitoring.

Pattern

ETL pipeline