Full job description

At NCS Australia, we believe in doing technology services better. Our commitment to quality, focus on people, and willingness to challenge traditional thinking set us apart. Our team brings this belief to life by partnering with our clients and communities to make tomorrow together.

We are committed to creating an environment that prioritises innovation, collaboration, and purposeful work. Our diverse team is empowered to make a meaningful impact with curiosity, creativity and resilience to shape better outcomes. Join us and accept the challenge of creating a better tomorrow.

We are seeking an Application Security Developer to join our enterprise cybersecurity and engineering organization in Sydney.

This is a developer-first AppSec role designed for a hands-on practitioner who blends a software engineering background with expertise in application security principles, API security, and secure coding standards. Working embedded alongside software engineering squads and cross-functional security teams (CIAM, DevSecOps, Vulnerability Management), you will ensure that applications, microservices, and AI integrations are built securely by design throughout the software development lifecycle (SDLC).

Key Responsibilities

Secure Coding & Remediation: Review code, diagnose vulnerabilities (OWASP Top 10, CWE, OWASP Top 10 for LLMs), and provide developer-level code remediation guidance in modern languages (e.g., Python, Java, Go, Node.js/TypeScript).
API Security & Identity Guardrails: Design, build, and extend secure application components, authentication/authorization modules, and API security controls—aligning with enterprise identity platforms (Ping Identity, Entra ID) using OAuth 2.0, OIDC, and JWT validation.
Automated Security Pipeline Integration: Integrate and fine-tune static (SAST), dynamic (DAST), and dependency (SCA) code scanning tools into modern CI/CD pipelines (GitHub Actions, GitLab CI, Azure DevOps).
Threat Modeling & Secure Design: Conduct threat modeling assessments during feature design phases and perform targeted manual secure code reviews for high-risk application components, external endpoints, and API gateways.
Vulnerability Triage & Exposure Remediation: Partner with enterprise Vulnerability Management teams to triage application security findings (e.g., Tenable WAS, DAST results), validate exploitable flaws, and guide squads on effective remediation strategies.