About The Role
At MrBeast, we build global digital experiences that bring together content, commerce, community, and interactive entertainment. We're launching mobile competitions at a scale no one has attempted — imagine a million players competing in a live elimination bracket where one winner takes the prize. Nothing about that works unless every player trusts the game is fair.

Who You Are

We're looking for a Senior Anti-Cheat Security Engineer to own that trust. You'll protect our games, players, tournaments, prize economies, and supporting infrastructure from cheating, fraud, abuse, and exploitation. This is a hands-on builder role: secure game and tournament architecture, automated detection at massive scale, and rapid response when adversaries adapt.

What You'll Do

You'll partner with gameplay, platform, mobile, data, fraud, and security teams to design protections across mobile clients, backend services, APIs, and real-time telemetry — and you'll help set the integrity foundation for prize competitions watched by hundreds of millions of people.

If you enjoy adversarial problems where the attacker has real money on the line, this role is for you.

Must Haves

• 7+ years in game security, application security, anti-cheat engineering, fraud prevention, or mobile security.
• Strong software-development skills in Python or TypeScript, with experience building backend services, detection tools, or automation.
• Deep understanding of API security, authentication/authorization, session management, and applied cryptography.
• Hands-on experience with mobile platform security: iOS/Android app hardening, attestation, root/jailbreak detection, or reverse engineering of mobile apps.
• Understanding of server-authoritative game design and common cheating and abuse techniques.
• Working knowledge of at least one major cloud (AWS, GCP, or Azure) and distributed, real-time architectures.

Nice to Haves

• Experience with mobile instrumentation and RE tooling (Frida, objection, Ghidra, jadx, Hopper) and mobile RASP/hardening products.
• Experience securing tournaments, leaderboards, sweepstakes, skill-gaming, real-money gaming, or other prize-bearing competitions — including the regulatory dimensions (geo-eligibility, age gating, KYC).
• Knowledge of payment fraud, chargebacks, virtual currencies, or marketplace abuse.
• Experience with SIEM platforms, streaming telemetry pipelines, and large-scale behavioral analytics; applying statistics or ML to anomaly detection.
• Experience assessing WebSocket/UDP real-time protocols under adversarial conditions.
• Security research, bug bounty, CTF, conference, or open-source track record.

Compensation: $178,000 –$268,000 base + bonus + equity + benefits (Note: Compensation will vary based on seniority/level)