Senior Application Security Engineer (AI)

TL;DR

Senior Application Security Engineer (AI): Building and securing the human data infrastructure for AI development with an accent on application layer protection, vulnerability remediation, and secure SDLC. Focus on implementing automated security tooling, performing threat modelling, and ensuring the protection of sensitive research data at scale.

Location: Remote, UK

Company

hirify.global is building a human data infrastructure that provides high-quality human-generated data to differentiate AI products and models.

What you will do

• Act as the technical authority on application security, working hands-on with engineering teams to find and fix vulnerabilities.
• Build and automate security tooling and embed secure development practices into the software delivery process.
• Review pull requests and lead threat modelling sessions for new features.
• Implement and tune SAST, SCA, DAST, and secret scanning within CI/CD pipelines.
• Run penetration tests and improve detection coverage to strengthen the platform's security posture.
• Partner cross-functionally with product engineering, platform, data, and TechOps teams.

Requirements

• Several years of experience in application/product security or security engineering.
• Strong knowledge of OWASP Top 10 (Web & API) and modern attack paths.
• Hands-on experience with security testing tools, especially Burp Suite.
• Proficiency in Python for security tooling and automation.
• Practical experience implementing security scanning in CI/CD environments.
• Ability to lead lightweight threat modelling sessions and drive remediation.

Nice to have

• Experience with Django, Vue, MongoDB, or GCP.
• Knowledge of supply chain security (SCA, SBOMs) and IaC security (Terraform).
• Experience managing security champions or bug bounty programs.
• Hands-on certifications such as OSCP, GWAPT, or BSCP.

Culture & Benefits

• Impactful, mission-driven culture at the forefront of AI innovation.
• Remote working flexibility.
• Competitive salary and benefits package.
• Opportunity to work with a unique human data platform for groundbreaking research.