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Web Application Penetration Tester - Nullify

Sydney, New South Wales💼 Full-time🗓 2026-09-17 → 2026-09-26

Core

Manual web application penetration testing to validate automated agent findings and identify complex vulnerabilities like business logic flaws and multi-step exploit chains.

Role type

Senior IC web application penetration tester

Builds

Security validation reports and novel exploitation techniques fed back into Nullify's autonomous security agents

Domain

Cybersecurity / Web Application Security

Deliverable

client delivery

Required skills

manual web app penetration testing, business logic vulnerability identification, multi-step exploit chain development, application code analysis, custom tooling development, vulnerability validation

Preferred skills

AI system training or evaluation for security tasks

Responsibilities

Run deep manual web app pentests against customer surface area, turn novel findings into reproducible techniques for agents, partner with customer security teams during engagements, keep pace with new frameworks and vulnerability classes

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