AI workflow builders, no-code automation platforms, architectural floorplan tools, and transit/network simulators frequently search to hire a freelance React Flow (`@xyflow/react`), Konva, PixiJS, Fabric.js & interactive HTML5 Canvas programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer available via Upwork.
Core Node Graph & Interactive Canvas Engineering Capabilities
- Visual AI Agent & Workflow Builders (React Flow / xyflow): Architecting drag-and-drop DAG node editors with custom handle validation, Dagre/ELK auto-layout, mini-maps, undo/redo stacks, and live execution state streaming.
- High-FPS 2D/WebGL Canvas Simulations: Building interactive train/fleet simulations (such as our MRT Jakarta Train Simulation), seating charts, and image annotation studios using Konva, PixiJS, and HTML5 Canvas.
- Deterministic Backend DAG Execution: Compiling visual React Flow JSON graphs into validated backend execution pipelines in Python (LangGraph / Celery / Temporal) or Go.
Frequently Asked Questions
How do you keep React Flow smooth when a workflow graph has 500+ custom nodes?
I memoize custom node components, store transient drag coordinates outside global React renders using Zustand selectors, and enable `onlyRenderVisibleElements` viewport culling.
How can we hire you as a freelance React Flow or Canvas programmer?
Reach out on Upwork.