James Liu

Senior Software Engineer

Freelancer•  July 2023 - October 2023

Responsibilities: Implemented and maintained Bitcoin Cash payment gateway in a Woocommerce environment, ensuring seamless transactions and enhancing the user experience. Developed and maintained a comprehensive admin dashboard using MERN stack (MongoDB, Express.js, React.js, Node.js), contributing to efficient data management and business operations. Integrated third-party APIs and performed routine tests to optimize functionality and performance. Collaborated with the design team to implement user-friendly interfaces and enhance website usability. Regularly updated website features and security patches to ensure optimal performance and user safety. Achievements: Successfully integrated Bitcoin Cash payment gateway with Woocommerce, leading to an increase in transaction efficiency and user satisfaction. Developed a robust admin dashboard using MERN stack, resulting in improved data visualization and operational efficiency. Enhanced website functionality and user experience by implementing effective API integrations. Received positive feedback for the user interface design, contributing to increased user engagement and retention.

Software Engineer

Upwork (formerly Elance-oDesk)•  October 2022 - March 2023

Responsibilities: Led the development of the biometric server, PWT app, which is a significant component of the Fiscoclic system. This server is responsible for multiple key features including face recognition, liveness detection, ID card and passport extraction, and speech-to-text capabilities. Collaborated with a team of developers to design and implement the face recognition module. This involved programming algorithms to analyze facial features and compare them against a database to verify identities. Developed the liveness detection feature to prevent fraud by confirming the presence of a real, live person during the biometric verification process. Implemented the ID card and passport extraction functionality, which extracts and verifies information from various types of identification documents. Integrated a speech-to-text feature, which converts spoken language into written text. This was particularly useful for accessibility and data entry purposes. Achievements: Successfully launched the PWT app, which greatly improved the efficiency and security of the Fiscoclic system. Enhanced the system's ability to prevent identity fraud by implementing robust face recognition and liveness detection features.

Senior Software Engineer

Patrik•  December 2019 - August 2022

Responsibilities: Developed and maintained smart contracts for NFT projects, ensuring secure and efficient transactions. Worked closely with the digital art team to create engaging and unique NFTs for the "Shibion" project. Implemented strategies for blockchain farming games like "Cthulhu Farm," improving user engagement and system efficiency. Conducted in-depth market research to understand trends in the NFT and blockchain gaming market, shaping the company's project development strategy. Provided technical support for blockchain applications, resolving issues in a timely and efficient manner. Achievements: Successfully launched the "Shibion" NFT project, which received positive feedback from the community and increased company revenue significantly. Implemented new features in the "Cthulhu Farm" blockchain game, increasing daily active users by 30%. Developed a new smart contract optimization technique, reducing transaction costs by 20%.