App Security Expert, Remote - Contract✦ anywhere

🏢 Xperteez Technology · all 30 jobs
📍 Worldwide
💰 USD 40 / hourly
📅 Posted Oct 17, 2026 · via Himalayas
🏷 Application Security Engineer, Security Engineer, Appsec Engineer, AI Security Engineer, Cybersecurity Engineer, App Security Specialist +3 more
Apply on original site ↗

Role Title: App Security Expert

Role Type: Contract

Location: Remote

In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Required Skills: OSWE, LLM security, Ai-sast evaluation, Appsec, Agent security architecture
Scope of Work

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

-
Develop deterministic test cases and security-context manifests to robustly assess application security posture.

-
Create detailed hidden answer keys to enable accurate AI or scanner evaluation of vulnerable versus secure code.

-
Evaluate and iterate on pipeline methodologies to ensure synthetic tasks and fixtures are challenging yet realistic for AppSec assessment.

-
Document technical insights and methodologies, ensuring clarity in written feedback and communication.

-
Collaborate through clear and thorough 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.

Preferred Qualifications

-
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.

Originally posted on Himalayas

Travel medical insurance

Working from anywhere means medical cover that follows you, not a policy tied to one country. SafetyWing is built for exactly that: travel medical insurance you can start mid-trip and pay monthly.

Get your global insurance today →

← All remote jobs

Want more like this? Browse every live remote developer role.All remote developer jobs →
Get new developer jobs by email
Daily email, only when there's something new. One click to stop.

Get remote developer jobs like this by email

10 hand-picked jobs, one email a day. No spam, unsubscribe anytime.

Similar for you