Contact person: AI Multi-Exchange Trading Platform Upgrade

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Location: Sunset, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I have a working proof-of-concept on Replit that already talks to cTrader Open API, Phemex, Charles Schwab (plus an early Binance hook-up), runs a few GitHub-hosted machine-learning models, and even charges through Stripe. The core pieces are there, but I now need a seasoned engineer to turn this demo into a production-grade, VPS-hosted platform.

Here’s where the project stands:

• Core goals: rock-solid automated trading execution, fast back-testing, and real-time data analysis across all connected brokers.
• API coverage: cTrader Open API, Phemex API, and Charles Schwab API need to be fully completed, documented, and hardened; Binance is partly wired and should be verified.
• Payments: Stripe’s payment processing, subscription management, and invoicing flows are in place but still rough around the edges and must be audit-ready.
• AI layer: the current OpenAI-driven strategy generator works, yet it needs guardrails, logging, and a smarter prompt/response structure so users can create or tweak algorithms safely.

I’d like everything containerised, migrated off Replit, and deployed on my VPS with a clean CI/CD pipeline. Expect to refine the existing codebase, add comprehensive tests, improve security (API key encryption, role-based access), and expose a simple web UI that lets any user connect their exchange accounts, choose or create an algorithm, and watch it trade.

Acceptance will hinge on:
1. One-click user onboarding including Stripe payment, account linking, and API-key validation.
2. Successful live trade execution and back-test results on at least one account per supported exchange.
3. Zero-downtime deploys to the VPS with logs and alerts I can access.
4. Clear documentation (setup, API usage, developer guide) in the GitHub repo.

Let me know your estimate for the full build and your hourly rate for ongoing improvements. I’m open to architecture suggestions—if you can make the platform smarter, faster, and easier to operate, I want to hear it." (client-provided description)