Hello, Samuel,
How are you?
This is Bai Hu Jing, web3 developer with 5.5 years experience.
I am interested in the positions you posted.
During my career, I have developed several projects in blockchain field and through that I have gained exclusive experience with DeFi especailly.
I described my experiences at Dexify and Balance Capital.
At Balance Capital, we built a Crypto Binary Options Trading Platform, which allows the users to predict the movement of certain crypto-currency within a predetermined time frame.
In our platform, the users can predict the movement of BTC, ETH within 1, 3, 5 mins.
At the expiration of the selected time frame, the platform compares the current price of the cryptocurrency with the user's prediction.
If the user's prediction is correct, he receives a predetermined payout, while the user's prediction is incorrect, he loses the invested amount.
For this, we used various technologies like diamond pattern, building our own oracle system, and referral systems. Backend is necessary in smart contract development to enhance the functionality, security, and usability of decentralized applications.
We used a NestJS framework for building our own oracle systems and referral systems, as a backend framework.
By building our oracle network, we could get the exact coin price by aggregating the prices from several exchanges and by building the referral systems, we could allow the users to get passive income.
And also by introducing smart accounts that leverage account abstraction, we could be able to allow new users can sign up with an email, social login, or self-custodial wallet and submit transactions without needing ETH in their account for gas and enable batch transaction
We used ERC-4337 standard for this.
In terms of describing my role at Dexify, in a nutshell I designed and led the building of an on-chain assets management system as a CTO.
On-chain asset management system is a typical DeFi system.
For that I studied carefully about several DeFi ecosystems and at last we came up with the most effective and scalable solutions.
In the Dexify platform, the users could create a vault, and could indicate the other users as a vault manager.
The users who were indicated as a manager are responsible for managing the funds in the vault and could create yields with the funds in the vault by trading in the external DEXes, like pancake wap.
For this complete system, we created several upgradeable smart contracts that are divided into 3 levels.
Also, we used a NestJS framework for the backend.
I believe my experience with DeFi will be helpful and really want to contribute to the success of your team.
Looking forward to hearing from you soon
Thanks,