Senior Security Engineer

📋 Job Overview

Immutable is the world's fastest-growing game platform, built to power the next generation of games. We're hiring a Security Engineer to join our growing team and help us build secure products for game studios.

🏢 About Immutable

Founded in 2018, Immutable is one of the fastest Australian companies to reach unicorn status, raising more than AUD $400M+ at a valuation of AUD $3.5B. Today more than 700 games build on Immutable, and industry leaders like Ubisoft have chosen us as their partner for the future of gaming.

🎯 The Role

Immutable builds products for game studios. One side of the business is a marketing data platform that helps studios find and keep players. The other is blockchain infrastructure, including our own Ethereum layer-2 network and Passport, a wallet players use to hold real digital assets. For a security engineer, this means a wide spread of work across web apps and APIs, AWS and GCP, and smart contracts where a bug has a dollar value attached.

✅ Key Responsibilities

• Own our vulnerability management program, including Bugcrowd and Immunefi bug bounties and findings from scanning tools
• Own the AI agents that review pull requests for security issues and triage incoming bugs
• Build a security context layer that lets those agents triage and propose fixes with less human input
• Keep our threat models and attack graphs current as the product changes

📌 Required Qualifications

• Application security depth. You can find a broken auth flow or an injection bug in code, explain why it happened and fix it properly.
• You’ve built AI tooling yourself. It might be an agent, an automation or an internal tool, and you can tell us what worked, what didn’t and how you knew.
• Solid AWS security experience (IAM, network controls, secrets, misconfigurations).
• You’ll enjoy this if you like autonomy, work well beside engineers and are happy to help out in other parts of security when a small team needs it.

⭐ Desirable Experience

• Web3 experience, such as wallet, smart contract or dApp security.
• Deeper detection and response experience, or a real interest in growing into it.
• Experience running a bug bounty program or findings pipeline end to end.

🎁 Benefits

Attracting the best global talent
💸 We commit to paying globally competitive base salaries and contributions to a long-term fund
📊 Sharing our products' success through Employee Stock Options ESOP
🌟 Our flexible working model blends the best of both worlds: Sydney-based employees enjoy hybrid 3 days a week in our vibrant head office, while remote team members can work from home or utilise access to global office hubs via a WeWork All-Access pass
🥘 Lunch is ordered fresh every day in our friendly office in Sydney CBD
🎉 Quarterly End of Cycle Celebration Awards
💻 USD $500 WFH allowance to set up your home office
☎️ USD $600 per annum to put toward your internet and phone usage
🥳 USD $75 per quarter for remote employees to celebrate with local team members
⛑️ We also support our US Employees with Medical and 401K Insurance
🚘 Our Australian Employees can access Novated Leasing and save money by paying for their car using pre & post-tax dollars

Levelling up your growth
🌱 We offer up to USD $1,350 per annum for classes, courses, AI tooling or events to support your growth and development
📚 Enjoy access to free online courses via Udemy

Helping you thrive
💆🏽‍♀️ Enjoy USD $800 per year to put toward your health and wellbeing
🤗 Get 24/7 access to unlimited counselling for you and your family when you need it through our EAP Service
🎁 Monthly subsidy and discounted rate with ClassPass, including a 1-year free membership to Breethe

Leave when you need it the most:
👨‍👧‍👦 Paid parental leave
🌟 Enjoy 2 additional paid annual leave days at the end of the year
🎂 Enjoy a paid day off on your birthday

🛂 Visa & Eligibility