I am Abhishek, a seasoned Full-Stack Developer and I believe my proficiency in JavaScript and Node.js makes me the ideal choice to work on your Trading System. Having carefully reviewed your project description, I understand that your key needs are to ensure correct recording of balance, equity, and margin as well as the functionality of Stop Loss, Take Profit, Buy Stop/Limits and Sell Stop/Limits executions.
Given your mention that 95% of these functions are already present, my expertise will come into play as I can seamlessly duplicate or edit these functions for expanded usage, ensuring optimal performance throughout. Additionally, I have a strong understanding of backend operations which will help in executing the required formulas relating to different currency pairs, including crypto conversions to USD as well as indices and metals.
To further ease the process, I'm more than willing to guide you through each step if needed; so together we can ensure all aspects of the system are working precisely. My commitment to delivering timely and accurate results makes me an ideal partner for this project. Let's discuss further how we can proceed with this task!