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# Senior Software Engineer - Bot Defense

- **Company:** Roblox
- **Location:** San Mateo, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), C Sharp (Programming Language), Lua (Scripting Language), TypeScript, Web Application Frameworks, Scripting, ReactJS, Backend, Information Technology, Roblox, Front End Software Development, Golang
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_2b335330e31efb05eb2e1f6898540d2e

## About the Role

* 4+ years of experience as a Full-Stack Software Engineer.
 * 2+ years of experience in front-end development with proven hands-on experience with UI scripting languages and modern frameworks, such as JavaScript, TypeScript, Lua, and React.
 * 2+ years of experience in compiled backend languages such as Golang, Java, or C#.
 * Equivalent experience or a BS in Computer Science, Applied Math, Physics, Engineering, Statistics, or another technical field.
 * A strong focus on writing clear, readable, testable, and highly monitored code.
 * A customer-first mindset demonstrated through exceptional cross-team collaboration and delivery.

## Description

* The "Founding" Experience: You will have total autonomy to shape our frontend practices. As the first dedicated full-stack hire on the team, you will have the opportunity to drive and establish next-generation technical and quality standards for the team's frontend stack.
 * Visible Results: Develop high-quality, user-centric, and low-friction front-end solutions, applying an adversarial and data-driven lens to proactively address security vulnerabilities.
 * Bridge the gap: Translate complex backend detection intelligence into intuitive, high-value interfaces.
 * Build the ecosystem: Build a centralized platform to provide intuitive UX for the bot defense pod and access control options to various product teams within Roblox and to the wider creator community.
 * Solve the toughest problems: Design, build, and deploy 0-1 secure, efficient, and reliable bot defense products, focusing on the user experience for bot detection and mitigation.