Upgrade Crypto Arbitrage Bot

I already run a live arbitrage bot that talks to Binance, Coinbase and Kraken, but several core pieces need a professional overhaul. The idea is to keep the current codebase yet refine it so it can scale safely and catch more profitable spreads.

Here is what I need you to improve:

• API integration – tighten rate-limit handling, add fail-over logic and make it easier to plug in new exchanges later.
• Arbitrage strategy – optimise the price-discovery loop, latency, and order-routing so opportunities are captured faster.
• Risk management – add dynamic position sizing, max-drawdown guards and configurable circuit breakers.

The project is written mainly in Python, though I’m open to integrating performant Node.js or Go micro-services if you feel it will shave milliseconds off execution. Solid experience with exchange REST / WebSocket APIs, automated trading workflows, back-testing frameworks, and secure key management is essential.

Please send over a brief note about similar bots or trading systems you have built or upgraded, links to any public repos or demos, and your preferred toolchain. If what you describe matches the scope above, we can jump on a quick call, walk through the existing repo and agree milestones for each of the three modules.