Senior Application Security Engineer

Gemini

Senior Application Security Engineer securing crypto products at Gemini. Leading design reviews and developing security technologies to protect financial services.

Posted 7/9/2026full-timeNew York City • California, New York, Washington • 🇺🇸 United StatesSenior💰 $140,000 - $200,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptPythonScala

About the role

Key responsibilities & impact

Lead secure design reviews, threat modeling, code review, and penetration testing for high-risk products such as crypto custody, trading systems, and payments
Build and ship code: design and build AppSec tooling including AI agents for secure design and code review, AI-enhanced SAST/DAST pipelines, and automation that eliminates repeatable security toil
Partner with engineering teams to remediate vulnerabilities and drive long-term improvements in secure coding practices

Requirements

What you’ll need

5+ years of experience in application security or similar roles
Ability to perform design reviews, threat modeling, secure code reviews, or penetration testing with an attacker mindset
Experience building or meaningfully contributing to security tooling and automation
Strong background in application security best practices and familiarity with common vulnerabilities (e.g. SSRF, race conditions, privilege escalations, etc.)
Some background in development or scripting experience (Python, Scala, C++, or JavaScript) with the ability to read and write code
Strong communication skills to influence without authority and the ability to collaborate on a cross-functional team with competing priorities.

Benefits

Comp & perks

Competitive starting pay
A discretionary annual bonus
Long-term incentive in the form of a new hire equity grant
Comprehensive health plans
401K with company matching
Paid Parental Leave
Flexible time off

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Application Security Best PracticesPythonScalaC++JavaScriptSASTDASTVulnerability RemediationAutomationCode Review

Soft Skills

Strong Communication SkillsCollaboration