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Talenza

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Senior Application Security Engineer

🗓️ Posted 2026-09-17 Sydney NSW Full-time Hybrid ICT

Company shared salary

A$16,667–A$20,833/mo (A$200,000–A$250,000/yr)

Market rate

A$10,000–A$15,000/mo (A$120,000–A$180,000/yr)

Based on similar roles (title + domain + location).

Responsibilities

  • Senior Application Security Engineer Secure the applications powering next-generation AI infrastructure.
  • We're looking for a hands-on Senior Application Security Engineer to own the security of a large-scale cloud platform, public APIs, and AI-powered applications. What You'll Do
  • Own application security across APIs, services, and customer-facing platforms.
  • Lead secure software delivery through SAST, DAST, SCA, secrets detection, and SBOMs .
  • Perform threat modelling, security reviews, and architecture assessments.
  • Define standards for authentication, authorisation, tenant isolation, and secrets management.
  • Secure AI assistants and agentic applications against risks such as prompt injection, tool misuse, and data leakage.
  • Work directly with engineering teams to automate security, reduce risk, and improve software quality.
  • + years in Application Security, Product Security, or Security-focused Software Engineering.
  • Strong knowledge of OWASP Top 10 and OWASP API Security Top 10 .
  • Hands-on experience with SAST, DAST, SCA, secrets management, and CI/CD security .
  • Strong coding skills in Python, Go, or TypeScript .
  • Exposure to AI/LLM security is highly desirable.
  • Nice to Have
  • AI agent security experience.
  • SOC 2 or ISO 27001 environments.
  • CSSLP, OSWE, or similar security certifications.