Portfolio

Projects

A selection of completed projects, active initiatives, and platforms in development.

๐Ÿ”Š DQ-DSP

Active

vibe: "audio engineering"

$20 USB Audio โ†’ DSP โ†’ dual-I2S box on an ESP32-S3. Replaces the passive crossover in my Dayton 2-way active speakers. Web Serial UI in Chrome, open-source firmware + UI.

ESP32-S3C / ESP-IDFReactWeb SerialTinyUSB UAC
Live demo โ†’Read more โ†’Source

๐Ÿ“’ HKD Accounting

Active

vibe: "civic tech"

Free tax accounting PWA for Vietnamese small businesses. SQLite in browser, works offline, designed for non-technical users.

Next.jsSQLite WASMTailwindExcelJS
Live demo โ†’Read more โ†’

๐Ÿฆ VIB Data Lakehouse

Work

vibe: "data platform"

Enterprise data transformation. DWH to AWS Lakehouse + Databricks. T24 core banking migration.

AWSDatabricksSparkT24

๐ŸŽฎ VNGGames Data Platform

Past

vibe: "data platform"

30K Spark jobs. 200 Flink pipelines. Data governance. Built from scratch.

SparkFlinkKafkaK8SClickhouse

๐Ÿ“ฆ ParcelPerform Data Lake

Past

vibe: "data engineering"

AWS data lake. 10 billion records. Sub-5-min latency. CDC-based. Replaced Redshift.

FlinkIcebergDuckDBAWS

๐Ÿ›ฐ GNSS Monitoring App

Past

vibe: "full-stack"

Real-time positioning device monitoring. Three months on-site in Finland.

ReactGoMQTTGCP

๐Ÿš P2P Drone Video Link

Past

vibe: "systems"

WebRTC video streaming over 4G for drones. Custom signaling stack.

GoWebRTCReactMQTT

> More projects in development.