街口支付已在數位金融圈已建立良好基礎與獨有領先優勢，近期積極擴展區塊鏈核心業務，致力於擴展電子支付的使用場景至加密貨幣上。希望對數位金融有興趣的人才，一起來探索更多加密貨幣及數位金融的可能性，打造領先傳統金融圈的創新產品。

[Responsibilities]
1. Design and implement backend service systems for Web3 products such as Crypto wallet, DeFi services, Metaverse, etc.
2. Integrate the system with 3rd-party services to speed up the development process.
3. Customize the system to fit each country's legal and compliance requirements.
4. Capable of working independently on projects by analyzing, designing, developing and maintaining the systems.

[Requirements]
1. 3+ years of professional experience designing and developing scalable web services with high availability.
2. A solid foundation of either backend language and framework: Java / Spring Boot is preferred.
3. Basic knowledge of API authentication protocol and methods, eg. OAuth, JWT, JWS, etc.
4. Basic knowledge of the transactional system, preferably in domains such as payment or e-commerce.

[Plus]
1. Engaged in a start-up company or a side hustle before.
2. Familiar with financial products including stocks, futures, options and so on.
3. Experience in the blockchain field, eg. trading bitcoin, using DeFi, running a node even building systems about blockchain.
4. Experience in cryptocurrency systems, especially in the wallet or trading domain.