App Security Expert – Remote

Your Software Supplier

. Design and implement small, purpose-built application fixtures with embedded security vulnerabilities or secure solutions addressing OWASP LLM risks, including Sensitive Information Disclosure and Excessive Agency .

Posted 10/21/2026contractRemoteMid-LevelSenior💰 $40 - $80 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in application security and secure software development, with a strong focus on OWASP LLM risks and AI-powered static analysis. Capable of designing security architecture and providing actionable security recommendations while ensuring clear communication and collaboration.

Highest-signal resume keywords

Application SecuritySecure Software DevelopmentOSWEAI-Powered Static Analysis (AI-SAST)Deterministic Testing Approaches

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Security Architecture DesignVulnerability IdentificationCodebase TestingTechnical DocumentationSecurity Recommendations

Soft Skills

Written CommunicationVerbal CommunicationCollaborative Feedback

Tools & Technologies

Synthetic Security FixturesAppSec Best Practices

Industry Keywords

OWASPCyberSWEAgent-Based Applications

About the role

Key responsibilities & impact

Design and implement small, purpose-built application fixtures with embedded security vulnerabilities or secure solutions addressing OWASP LLM risks, including Sensitive Information Disclosure and Excessive Agency
Develop deterministic test cases and security-context manifests to assess application security posture
Create detailed hidden answer keys for accurate AI or scanner evaluation of vulnerable versus secure code
Evaluate and iterate pipeline methodologies so synthetic tasks and fixtures are challenging yet realistic for AppSec assessment
Document technical insights and methodologies
Provide clear written feedback and communication
Collaborate through written and verbal communication to share findings and review peer contributions
Engage with agent-based security architecture and contribute to continuous improvement of the evaluation pipeline

Requirements

What you’ll need

Extensive experience, ideally 5+ years, in application security, secure software development, or CyberSWE roles
Strong understanding of OSWE, LLM security, AI-powered static analysis (AI-SAST), and AppSec best practices
Proven track record designing or evaluating security architecture for traditional and agent-based applications
Expertise in building, securing, and testing application codebases, including identifying and remediating advanced vulnerabilities
Exceptional written and verbal communication skills, with a focus on precise technical documentation and collaborative feedback
Experience with synthetic security fixtures and deterministic testing approaches is highly desirable
Demonstrated ability to deliver thoughtful insights and actionable security recommendations in a remote contribution context

Benefits

Comp & perks

12-month contract
40 hours/week
Remote worldwide