Justin (Tingxuan) Wang

engineering @ uwaterloo

"I build the infrastructure layer that turns messy tech into real life solutions within production-grade systems."

prev. software @ German Aerospace Center, modular mobile sensor systems

founding engineer @ brikli, execution layer for real estate operations

training semantic ingredient state tracking models @ wat.ai

creating a personal brand to document my travels across europe

interested in agent harnesses + infra

click into a project for code snippets, detailed system design, and the personal story behind each build

Projects

Scale spatial shopping demo thumbnail

Scale

Point at furniture you like and discover real products that provably fit your space. Scale combines LiDAR room measurements, multimodal search, and verified fit checks to let you preview and arrange furniture at 1:1 scale in XR.

FrameShift video editing demo thumbnail

FrameShift

AI video editor that applies object edits across every frame using SAM 2 segmentation and RAFT optical flow.

Meta Harness team photoMeta Harness autonomous agent evolution dashboard

Meta-Harness

Self-improving coding-agent infrastructure that tests and evolves agent harnesses through sandboxed evaluations, checkpointing, and branching experiments.

Hack the Valley X Winner

Rainbolt.ai geolocation demo thumbnail

Rainbolt.ai

AI geolocation tool that identifies photo locations using visual clues, vector search, and live reasoning on an interactive globe.

uOttaHack 7 Winner

CyberSea defense intelligence demo thumbnail

CyberSea

AI defense intelligence platform for analyzing military equipment in 3D and simulating Canadian Arctic maritime patrols.

DeltaHacks XII Winner

Protosynthesis workflow automation demo thumbnail

Protosynthesis

Visual workflow builder that connects 23+ services, with AI-assisted automation and live execution tracking.

VibeTrade agentic trading terminal demo thumbnail

VibeTrade

AI-powered Bitcoin trading terminal combining live market analysis, voice controls, and automated paper trading.

Ignition Hacks VI Winner

RouteTO crime-aware navigation demo thumbnail

RouteTO

Toronto navigation app that compares routes by crime risk, distance, and travel time using interactive safety maps.