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Staff Mobile Security Engineer

MrBeast· Engineering
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Remote$205k - $256k + equity + bonusFull-timePosted 1w ago

About the role

Senior security engineer responsible for device attestation, account integrity, and server-authoritative detection/enforcement against abuse at scale for Beast Industries’ mobile experiences. Owns threat modeling, systems design, and leads a team across mobile and backend to defend consumer-scale mobile products.

Responsibilities

  • Device & session integrity — attestation, session enforcement, and authentication hardening across native mobile clients and the backends behind them
  • Abuse & fraud defense — design and run detection/enforcement systems that stay ahead of adversarial, adaptive bad actors operating across consumer and fintech surfaces
  • Roadmap & strategy — define the multi-quarter security roadmap for account integrity and abuse defense, balancing user trust, growth, and risk
  • Team leadership — lead and grow a team of engineers spanning mobile and backend; set technical bar, review designs, mentor

Qualifications

  • 8 to 10+ years in security engineering, with deep experience defending consumer-scale mobile products against account takeover, bot abuse, and fraud
  • Proven ownership of an end-to-end security domain — roadmap, team, and outcomes
  • Strong systems design instincts: experience building server-authoritative detection pipelines, attestation systems, or similar adversarial-facing infrastructure at scale
  • Hands-on across native mobile (iOS/Android) client internals and distributed backend services
  • Comfortable operating in Go (or similar) on a major cloud provider (AWS preferred) with emphasis on platform reliability and cost discipline
  • Experience leading engineers across disciplines

Skills

Required:Threat modelingSystem designMobile security (iOS/Android)Go programmingCloud / AWSLeadership / people management

Benefits

  • Competitive Salary
  • Generous Medical (Blue Cross Blue Shield), Dental, Vision and company-paid Life Insurance
  • Company contributions to employee Health Savings Accounts (HSA)
  • 401k Plan with Safe Harbor company-matching
  • Flexible vacation policy and paid company holidays
  • Company-provided technology package
  • Relocation assistance where applicable, including travel and company-provided housing for the first 90 days
Last updated Oct 17, 2026. Interested? Apply on the company site.

About MrBeast

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