Kevin Lee

• Designed and implemented a secure hybrid storage architecture combining blob storage (Walrus), on-chain metadata (Sui), and AWS S3 caching to balance durability, performance, and read latency. • Built end-to-end encrypted file workflows (AES-GCM) with client-side key generation and decryption, ensuring encryption keys are never accessible to backend services and remain fully user-controlled. • Implemented secure upload, download, and sharing flows with time-based expiration, enabling controlled access while preventing exposure of underlying storage identifiers or direct blob enumeration. • Partnered with engineers and mentors to evaluate architectural tradeoffs across encryption design, caching strategy, performance constraints, and user experience, shaping core system decisions. • Designed the system around user sovereignty, ensuring encrypted files remain independently retrievable from Walrus even if centralized services fail or policies change, eliminating provider lock-in common in traditional platforms like Dropbox or Google Drive.

• Led weekly discussion sections and office hours for large undergraduate CS courses (100–150+ students), debugging production-scale assignments and reinforcing algorithmic reasoning, performance analysis, and software correctness. • Mentored small engineering teams (~6 students) in an industry-style project course, guiding full-cycle development from problem definition and technology selection through MVP implementation and final production delivery. • Established and enforced professional engineering workflows, including agile sprint planning, task decomposition, Git-based collaboration, and iterative feature delivery. • Conducted structured code reviews and design critiques, emphasizing clean abstractions, maintainable architecture, and user-centered UI/UX decision-making.

• Facilitating lectures by providing IT support to professors, ensuring technical needs are promptly addressed. • Working backstage during events, effectively communicating the needs of performers to the stage manager, ensuring a smooth event execution. • Developing valuable skills in communication, problem-solving, and teamwork, contributing to my professional growth and expertise.