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Siyu Ren
@siyu_backend
AI App Troubleshooting and Backend Developer
China
Chinese
About me
I help founders rescue and stabilize AI-built web apps and backend systems. I diagnose deployment failures, Supabase Auth/RLS problems, API and database bugs, and Spring Boot issues, then deliver tested fixes with clear handover notes. My stack includes Lovable, Bolt, Replit, React, Vite, Supabase, Vercel, Java, Spring Boot, REST APIs, PostgreSQL, MySQL, Redis, and n8n. With 8 years of backend experience, I focus on root-cause analysis, secure access, clear scope, and practical fixes without unnecessary rebuilding.
Skills
Siyu Ren
Offline •
Average response time: 1 hour
See my services
API & Integrations
I will fix or build java spring boot backend apis
Automations & Agents
I will build or fix n8n workflows with apis, webhooks, and google sheets
