Nicholas Ching Contact

Nicholas Ching

Software Engineer | Applied AI | Financial Data

I’m a software engineer at Garda Capital Partners in New York, where I build AI tools for the firm’s investment teams. I studied computer science at Columbia University and computational finance at City University of Hong Kong. Outside of work, I’m the founder of Tael.

Nicholas Ching

Projects

Tael

A privacy-first finance app that runs entirely on-device

Every Apple Pay tap logs and files itself, with no bank login, no account and no cloud AI. Founded and launched on the App Store in 2026.

2026 · Founder · iOS usetael.com

Liveon the App Store

Limit Order Book

A high-throughput matching engine

An exchange-style matching engine supporting market, limit, stop and stop-limit orders.

2025 · C++

~1Mevents / sec

Encrypted Echoes

Identifying devices from encrypted traffic

Identifies a device’s operating system from its TLS handshake, without decrypting anything. Extended to federated learning.

2025 · Python, XGBoost, Flower

85%accuracy across 5 OSes

Veritas

Generative AI detection as a service

Our implementation of Raidar (Mao et al., 2024) as an API, detecting AI-written text by how little a language model changes it when rewriting.

2024 · Java, Python, GCP GitHub

Experience

  1. Software Engineer

    Garda Capital Partners

    New York2026 – Now
  2. Software Engineering Intern

    Garda Capital Partners

    New York2025
  3. R&D Data Analytics Intern

    Discovery Bank

    Johannesburg2021

Education

  1. MS, Computer Science

    Columbia University

    New York2024 – 2025
  2. BA, Computer Science

    Columbia University

    New York2022 – 2024
  3. BSc, Computational Finance & Financial Technology

    City University of Hong Kong · First Class Honours

    Hong Kong2019 – 2024

Photography