Node.js Backend Developer for API Proxy

Posted last month

Worldwide

Summary

I need an experienced Node.js backend developer to build a small API proxy server that holds my Anthropic API key and Supabase service key server-side. My existing browser-based SaaS workspace currently has the API key in client-side code, which is blocking us from scaling. I need a Node.js + Express (or Cloudflare Workers) proxy with 3-5 endpoints, CORS configured for my domain, per-user rate limiting, JWT-based auth (Supabase), deployed to Vercel/Railway/Render, and a README for future maintainers. Must have built API proxies before — show me a past project. Top Rated Plus on Upwork preferred.

Less than 30 hrs/week
Hourly
< 1 month
Duration
Intermediate
Experience Level
$40.00
-
$80.00
Hourly
Remote Job
One-time project
Project Type

Skills and Expertise

Mandatory skills

API Integration

Node.js

Nice-to-have skills

RESTful Architecture

JSON

Activity on this job

Proposals:20 to 50
Last viewed by client:3 weeks ago
Hires:
1
Interviewing:
5
Invites sent:
10
Unanswered invites:
2

About the client

Member since Mar 10, 2024

USA
Boca Raton10:49 AM
$2.1K total spent
1 hire, 1 active
71 hours
Legal
Small company (2-9 people)

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