Productivity SaaS platforms, AI workspace tools, and legal/medical documentation apps building Notion- or Google-Docs-style multiplayer editing frequently search to hire a freelance Yjs, CRDT, TipTap, ProseMirror, Lexical & Liveblocks programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer and AI Application Engineer.
Core Multiplayer CRDT & Rich-Text Editor Capabilities
- Conflict-Free Replicated Data Types (Yjs / Automerge): Synchronizing concurrent multi-user document edits, live cursor awareness, and offline IndexedDB persistence over Hocuspocus / Cloudflare Durable Objects / Liveblocks WebSockets.
- Custom TipTap, ProseMirror & Lexical Extensions: Building slash commands (`/`), inline AI copilot completions, `@mentions`, comment threads, tracked changes, and custom React node views.
- Version History & Snapshot Compaction: Storing binary Yjs state vectors efficiently in PostgreSQL/S3 with point-in-time document diffing and restore.
Frequently Asked Questions
How do you let an AI agent edit a TipTap/Yjs document simultaneously while a human is typing?
By applying streaming LLM edits as native Yjs CRDT transactions anchored to relative positions (`Y.RelativePosition`), AI insertions never overwrite or jump the human user's active cursor.
How do I hire you for TipTap, Yjs, or collaborative React engineering?
Hire me via Upwork.