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# Staff Application Security Engineer

- **Company:** Gemini Trust Company, LLC.
- **Location:** New York, NY, United States (Remote available)
- **Experience:** Expert
- **Salary:** $168,000.0 - $240,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Software System Penetration Testing, Cloud Computing, Code Review, Continuous Integration, Python (Programming Language), Open Web Application Security, Systems Development Life Cycle, Secure Coding, Software Engineering, Software Security, Build Management, Microservices
- **Published:** July 23, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=03aafecf64a4a627

## About the Role

* Proven ability to perform design reviews, threat modeling, secure code reviews, and penetration testing with an attacker mindset
 * Strong background in application security best practices and familiarity with common vulnerabilities (e.g. SSRF, race conditions, privilege escalations, etc.)
 * Deep code review proficiency in Scala, Java, Go or other common languages, plus hands-on experience in at least Python, Go, or similar for building. Comfortable reviewing production services written in other languages
 * Experience implementing custom detection and prevention application security controls to eliminate application security issues beyond OWASP Top 10
 * Familiarity with highly regulated environments (financial services, fintech, crypto, or equivalent) and ability to understand business objectives, business context, and security risk
 * Strong cross-functional communication and collaboration (Security, Engineering, and Product)
 * Typically 7-10+ years of experience or equivalent impact in application security, product security, or similar roles

Preferred Qualifications:

 * Experience building AI application security tooling using agents or skills
 * Experience with supply chain security, common frameworks (SLSA, OWASP SPVS) and other CI/CD security controls
 * Experience with preventing application security vulnerabilities at scale through secure design patterns, automated tooling, or frameworks
 * Experience with microservice architectures and cloud-native environments

## Description

* Own and evolve the Gemini Secure Software Development Lifecycle guardrails as an application security subject matter expert
 * Lead architecture reviews, threat modeling, code reviews, and penetration testing for high-risk applications and services
 * Design and build AI agents throughout the SDLC for automated threat modeling during design, AI-driven secure code generation and review, and reducing AppSec toil
 * Create and deliver hands-on application security training to enable engineers at scale
 * Participate in the Application Security on-call rotation and lead post-incident hardening


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