Saad Khalid

Senior Software Engineer at Aletha AI

Designed and implemented production-grade full-stack applications for AI- and Web3-powered platforms. Contributed backend services using Node.js, built APIs, integrated databases, and supported real-time and event-driven data workflows. Implemented Web3 wallet connectivity (Ethereum and Solana) and smart-contract interactions via unified DApps, and integrated wallet providers and Web3 libraries. Designed scalable architectures balancing performance, reliability, and security in regulated environments. Participated in code reviews, architectural discussions, and performance optimization across the platform.

Senior Software Engineer at Finja

Built and scaled regulated fintech applications including stock financing and collections platforms. Developed frontend and backend using React.js, Node.js, and integrated with financial and payments systems. Designed Progressive Web Apps and internal dashboards for high-volume financial workflows. Integrated third-party APIs for payments, risk, and analytics, ensuring secure and compliant data handling. Worked with engineering and compliance teams to implement secure, auditable architectures. Improved system reliability and reduced production defects by 45%.

Software Engineer at Bitficial Technologies

Worked hands-on across the MERN stack (MongoDB, Express, React, Node.js), contributing to both frontend and backend development. Designed and developed scalable B2C and B2B web applications from scratch, including dashboards and admin panels. Implemented authentication, authorization, and role-based access control across multiple platforms. Integrated third-party APIs and external services to support business workflows. Collaborated with engineering and compliance teams to implement secure, auditable system architectures. Improved reliability and reduced production defects.