Senior Security Engineer, Mobile Detection jobs in United States
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World · 8 hours ago

Senior Security Engineer, Mobile Detection

positionSan Francisco, CA
timeFull-time
remoteHybrid
senioritySenior Level
money$221K/yr - $280K/yr
date5+ years exp

World is building a real human network designed to accelerate people in the age of AI. The Senior Security Engineer will work with App engineering teams to address app and Mini App risks, secure the Android operating system of the next-generation Orb device, and develop detection capabilities for mobile devices.

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H1B Sponsor Likelynote

Responsibilities

Work with our App engineering teams to address app and Mini App risks
Work with the Device and Device Security teams on securing the Android operating system of the next-generation Orb device
Participate in an on call rotation and learn incident handling (or relevant experience)
Challenge the security of the apps and devices, advise and assist Engineering on implementing controls, develop Detection capabilities for mobile devices, and drive incident response for any security incidents (not just mobile)

Qualification

Android securityMobile attacksDefensesIncident responseKotlinPythonCritical thinkingCommunication skillsLeadership skillsCross-functional collaborationFast-paced environment

Required

5-8 years experience in offensive and defensive Android security
Sound knowledge of Security fundamentals
Deep knowledge of mobile attacks and defenses
Some experience developing Android apps (Kotlin)
Analyst-level Python coding (building analysis pipelines in an existing environment)
Willing to participate in an on call rotation and learn incident handling (or relevant experience)
Strong critical thinking, communication, and leadership skills
Comfort working cross-functionally with peer teams to negotiate and reach consensus solutions that improve security and privacy
Energized by working in a fast-paced, collaborative environment

Preferred

Engineer-level coding in Kotlin (implementing security frameworks)
Experience hacking or developing iOS apps (Swift)
Reported CVEs (especially for mobile apps and Android)
Collected Bug Bounty awards
Participated in / won CTF (Capture The Flag) competitions

Benefits

Healthcare
Dental
Vision
401(k) plan and match
Life insurance
Flexible time off
Commuter benefits
Professional development stipend
Much more

Company

World

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World connects users through a privacy-focused network with secure digital asset management.
dateFounded in 2019
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://world.org

H1B Sponsorship

World has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)

Funding

Current Stage
Growth Stage
Total Funding
$135M
Key Investors
Andreessen Horowitz,Bain Capital Crypto
2025-05-21Undisclosed· $135M

Recent News

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World Digital Identity Platform Hits 38M Users in 2025
2026-01-22
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World Network Makes Italian Market Debut After Making Steady Progress in Past Year
2026-01-19
GlobeNewswire
MEDIROM Partners with World on Technology Envisioned by Sam Altman and Alex Blania: Deploying “Proof of Human” Infrastructure throughout Japan
2025-12-29
Company data provided by crunchbase