Yoav Rafalin

CS & Philosophy @ Columbia

New York, New York, United States

About

4th-year student at Columbia University, majoring in Computer Science. Passionate about cryptography, philosophy, linguistics, and artificial intelligence.

Experience

  • Research Intern at MongoDB
    Jun 2026 - Present · 1 mo

    Cryptography Research Group

  • Security Researcher at Certora
    Jun 2025 - Aug 2025 · 3 mos

    Blockchain company securing top cryptocurrency protocol contracts with state-of-the-art formal verification and manual auditing. - Audited 5 different Ethereum projects involving protocols with over $4B in total value locked. - Collaborated with other security researchers to draft audit reports and present them to customers. - Constructed a proof of cryptographic security of a blockchain contract feature.

  • Research Intern at Canaan
    Jun 2024 - Aug 2024 · 3 mos

    Venture capital firm that invests in early-stage technology startups with 200 exits to date. - Researched emerging artificial intelligence technologies such as agents and autopilots. - Presented on how AI will disrupt incumbent automation technologies such as RPA.

  • Software Engineer Intern at Robust Intelligence
    Jun 2023 - Aug 2023 · 3 mos

    Sequoia-backed machine learning and AI integrity startup building a framework to validate complex corporate machine learning algorithms against bias, misuse, faulty inputs, etc. - Added tests manipulating inputs to the machine learning models to test their performance against novel and malformed inputs

  • Software Engineer Intern at Reduct.Video
    Jun 2021 - Aug 2021 · 3 mos

    An early stage text based video editing tool company leveraging machine learning and forced aligners to accurately transcribe and time speech in video. - Designed backend cloud architecture to break web service into microservices, enabling scaling. - Built microservice testing utility to confirm refactoring functionality. - Utilized Google Cloud, Twisted web framework, and other software development tools.