Senior Product Security Engineer – AI & Web3

Matchbox; Sydney; Hybrid; AUD 150,000 - 210,000; Full time

Job summary

Immutable is seeking a Senior Security Engineer (Product Security) to join our hybrid Sydney team. You will own vulnerabilities, model threats, and work with product engineers to fix issues before they reach production.

The role blends hands-on security, prototyping AI tooling, and cloud security across AWS/GCP, with a focus on Web3 and smart contracts in a fast-growing gaming platform. Based in Sydney, you will partner with engineers and security colleagues to build secure systems, maintain

Qualifications

• Application security depth and ability to fix issues in code.

Responsibilities

• Own the vulnerability management program and triage issues.
• Develop threat models and maintain attack graphs as product changes.
• Review security of new services and code shipped by product engineers.
• Collaborate with Security, Product and Engineering teams to reduce risk.

Skills

Vulnerability management

Threat modeling

Security reviews

AWS security

GCP security

Web3 security

AI tooling

Software engineering

Tools

Bug bounty platforms

Security tooling

Job description

Immutable is seeking a Senior Security Engineer (Product Security) to join our hybrid Sydney team. You will own vulnerabilities, model threats, and work with product engineers to fix issues before they reach production.

The role blends hands-on security, prototyping AI tooling, and cloud security across AWS/GCP, with a focus on Web3 and smart contracts in a fast-growing gaming platform. Based in Sydney, you will partner with engineers and security colleagues to build secure systems, maintain