# Jessie Ho (j3ssie) > Ai Ho, known online as j3ssie or Jessie Ho, is a Senior Security Engineer at TikTok (ByteDance) and the creator of Gimorra, Vigolium, Osmedeus, Metabigor, and Jaeles. Focus areas: security automation, offensive tooling, and attack surface management. Recognized by Google, Apple, Microsoft, Netflix, Yahoo, StackOverflow, Alibaba, Grab, Snapchat, Starbucks, Tencent, Firefox, Django, Red Hat, FireEye, SAP, AT&T, Mastercard, the US Department of Defense, and many others for finding and reporting critical security vulnerabilities in their products. Open to collaboration on security research, offensive automation tools, and attack surface management projects. ## Projects - [Gimorra](https://gimorra.vigolium.com/): An autonomous offensive security agent. - [Vigolium](https://www.vigolium.com/): High-fidelity vulnerability scanner with native scan precision and agentic scan intelligence. 1.1k+ GitHub stars. - [Osmedeus](https://www.osmedeus.org/): A modern orchestration engine for security. 6.6k+ GitHub stars. - [Jaeles](https://github.com/jaeles-project/jaeles): The Swiss Army knife for automated web application testing. 2.3k+ GitHub stars. - [Metabigor](https://github.com/j3ssie/metabigor): Intelligence tool that works without API keys. 1.8k+ GitHub stars. ## Contact - [Email](mailto:jessie.ho@proton.me): jessie.ho@proton.me - [GitHub](https://github.com/j3ssie) - [Twitter / X](https://x.com/j3ssie) - [LinkedIn](https://www.linkedin.com/in/jessie-aiho/) - [HackerOne](https://hackerone.com/j3ssie) - [Bugcrowd](https://bugcrowd.com/h/j3ssie) ## Optional - [Homepage](https://j3ssie.github.io/): Portfolio page this file describes. - [Patreon](https://www.patreon.com/j3ssie): Support Jessie's open-source work. - [PayPal](https://www.paypal.com/paypalme/j3ssiejjj): One-off donations. - [Other sponsorship options](https://docs.osmedeus.org/sponsor)