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working hard!
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working hard!
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Achievement: Pair Extraordinairex3Achievement: Pull Sharkx2Achievement: YOLO

Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx2Achievement: YOLO

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ethanleighfellows/README.md

Ethan Leigh-Fellows

I’m a product builder focused on AI governance, security, and B2B SaaS.

Currently at DynamoAI (YC22), I'm developing solutions to tackle AI security vulnerabilities like prompt injection, jailbreaks and around information security. Before that, I was at Pitchlane, where I helped shape and ship an early-stage B2B SaaS product.

Education

University of Bath
BSc Business (Hons), First-Class Honours
Class of 2025

GitHub

I learn by building. My GitHub is a sandbox for personal projects, prototypes, and experiments where I test out ideas end-to-end.

What I Do

AI governance & guardrails

Information security & prompt injection

Product execution (scoping → shipping)

Links

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  1. CTranslate2-Standalone-Language-Translation CTranslate2-Standalone-Language-Translation Public

    A standalone, barebones Python script to translate large datasets or individual strings from English to French (fr), Italian (it), and Portuguese (pt) using CTranslate2 and HuggingFace Transformers.

    Python

  2. user-prompt-perturbation user-prompt-perturbation Public

    A batch-processing utility for applying 23+ PyRIT prompt converters to Excel/CSV datasets. Automatically encodes, obfuscates, and transforms text prompts at scale.

    Python

  3. crescendo-attack-simulator crescendo-attack-simulator Public

    Standalone UI + API app for running multi-turn Crescendo-style attack simulations and exporting run results.

    Python

  4. dynamofl/foundation-model-synthetic-data-generation dynamofl/foundation-model-synthetic-data-generation Public

    This repository provides an automated pipeline for generating high-quality, diverse, and policy-specific synthetic data (user prompts) for benchmarking LLM guardrails from foundation models.

    Python

  5. anti-track anti-track Public

    Strips UTM identifiers before they hit the destination. Lightweight and ideal for maintaining privacy online.

    TypeScript

  6. workout-analyzer workout-analyzer Public

    A client-side web application for analyzing weightlifting and fitness data exported from workout tracker logs (like Strong). It processes data locally in the browser to generate visualizations and …

    TypeScript