Senior Software Developer Realtime Editor

Help power Knak’s editor as a Senior Software Developer, working on stateful applications, live rendering, and realtime collaboration in Canada.Knak’s editor lets marketers create on-brand emails and landing pages without writing code. In this senior full-stack role, you will work on the entire editor while owning its collaboration engine. The system includes structured documents, reusable modules, translations, version history, and editing support for people and AI agents.Key Responsibilities:
Work across the entire editorOwn the CRDT-based sync layerRun collaboration services on Cloudflare WorkersUse Durable Objects for realtime collaborationSupport simultaneous asset editingRequirements:
Experienced full-stack developer profilePassion for difficult frontend architectureExperience building complex stateful applicationsKnowledge of realtime collaboration systemsAbility to support AI agent editingApply senior full-stack skills to Knak’s stateful editor, realtime sync infrastructure, and collaborative email and landing-page creation.
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