Senior Full-Stack Product Engineer (React, Cloudflare Supabase, AI, Integrations)
Budget: $6.0 - $15.0
HOURLY / FULL_TIME
⭐ 4.87 (55)
United States
web-programming, api-integration, javascript, php, css, wordpress-website, react-js, api, node.js, python
We are building a modern field-service and marine operations platform used by sevral roles in the industry.
The platform includes:
* CRM workflows
* Estimates and invoicing
* Technician dispatching
* GPS tracking
* AI-powered diagnostics
* Voice, SMS and call transcripts
* Insurance claim workflows
* Offline mobile applications
* Marketplace integrations
This is not a simple website project. We are looking for a developer who can own features end-to-end and help build a scalable SaaS platform.
⸻
Responsibilities
Front-End
* Build React/Vite applications
* Build responsive mobile-first interfaces
* Create offline-first PWA functionality
* Implement complex forms and workflow engines
Back-End
* Design scalable PostgreSQL schemas
* Build APIs using Hono or Express
* Implement authentication and permissions
* Create workflow automation services
Integrations
* Zoho CRM
* Zoho Books
* Twilio
* RingCentral
* Stripe
* OpenAI
* Cloudflare
* Google APIs
* Supabase
* and otheres
AI
* Agent building
* Agentic and MCP
* Prompt engineering
* AI workflow automation
* Call transcript processing
* OCR and document extraction
* Structured data extraction
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Required Experience
Must Have
* 5+ years Full Stack Development
* React + TypeScript
* PostgreSQL
* API design
* Authentication systems
* Mobile responsive applications
* SaaS application development
Strongly Preferred
* Supabase
* Twilio
* Stripe
* OpenAI
* Cloudflare Workers
* Offline PWAs
Huge Bonus
* CRM development
* Dispatching software
* Field service software
* Insurance software
* Marketplace platforms
Apri su Upwork