Backend Engineer for Channels

Company Description

Wix Channels builds the technology that powers Wix’s largest strategic partnerships. Our mission is to create a robust, integration-friendly platform that enables partners to connect to Wix smoothly and deliver high-impact experiences to millions of businesses. We own everything from cross-platform creation funnels, post-creation guidance, POS-first onboarding, account creation and identity flows, to deep API and webhook integrations across partner ecosystems. Your work will directly shape Wix’s 2026–2027 Channels strategy. 

•  Lead the development of intelligent, AI-powered migration tools that analyze, interpret, and recreate external websites inside Wix  
•  Design and develop backend services and APIs that power cross-platform user flows between Wix and major partners  
• Implement scalable, secure integration layers (e.g., OAuth2 flows, JIT account creation, SSO, token handling, and cross-platform authentication)  
•  Build and maintain event-driven flows and webhooks (e.g., site created, product imported, account linked/unlinked)  
•  Contribute to the modernization of the Channels Platform, focusing on stability, performance, observability, and integration depth  
• Collaborate closely with Product, FE, Data, ML, and partner engineering teams to design durable, real-world solutions  

•  4+ years of experience as a server engineer  
•  At least 1 year of experience developing advanced AI products, including implementing and integrating GenAI models (especially LLMs) into production systems  
• Proven ability in server solution design, API design, and leading technical discussions  
•  Strong understanding of business objectives with the ability to translate them into actionable technical tasks  
• Excellent communication skills in both Hebrew and English  
•  Experience with Large Language Models, including prompt engineering, fine-tuning, automatic evaluation, and Retrieval-Augmented Generation (RAG) – an advantage 

As a Backend Engineer for the Channels team, you'll play a crucial role in developing and maintaining the technology that drives Wix’s largest strategic partnerships. Your work will directly shape Wix’s 2026–2027 Channels strategy as you design and implement robust, integration-friendly platforms and tools.