Sangwoo Park
Control systems engineer turned Flutter & Python developer. I build the software that sits between hardware and people — robot schedulers, operator panels, mobile apps, and the APIs that connect them.
What I do
For the past several years I've written the software that runs behind real machines — TCP/IP command layers, task schedulers, and the GUI panels field engineers use to fix a robot without reading a manual. That work shipped to commercial kitchens and warehouse floors, not just a demo.
I also design and build cross-platform apps solo, end to end — Flutter, Firebase, REST APIs, in-app payments — having taken one from spec to real paying users.
I'm not a developer who only writes code in isolation. I've spent years being the technical point of contact for overseas manufacturers and clients, so I communicate clearly, document what I build, and don't disappear mid-project.
Stack & strengths
Project modules
Automated Fry-Station Control Software
Led upper-level control software for a 6-axis robot arm cooking system: TCP/IP command layer, custom task scheduler, and a new operator GUI. Also handled English-language technical liaison with the robot manufacturer.
Freelance Marketplace App — solo build
Designed and built a cross-platform app alone, from business plan to shipped product: UI/UX, backend, cloud infrastructure, chat, notifications, and a demo payment integration.
Low-profile AMR Fleet Rollout
Site-mapped and configured autonomous mobile robots (SLAM) for factory and warehouse deployment, set up networking, and trained on-site engineers on scheduler operation and troubleshooting.
Blockchain Throughput Optimization
Benchmarked a Hyperledger Fabric backend with Caliper, identified bottlenecks against target throughput, and iterated with the platform community until read/write performance improved roughly 1,000x in local testing.