Senior Security Engineer

Summary

Join Immutable's growing security team as a Senior Security Engineer to lead detection engineering, response automation, and adversary simulation. You will own and operate SecOps and SOAR platforms, building playbooks and automation. Design and implement detection pipelines for high-fidelity alerts. Lead initiatives to harden endpoints, SaaS controls, and workforce identity systems. Collaborate cross-functionally to integrate security into the SDLC and product architecture. Leverage AI, scripting, and automation to scale the security function. This role requires proven experience in detection and response engineering, security automation, or security operations in a product or platform company.

Requirements

• Proven experience in detection and response engineering , security automation, or security operations in a product or platform company
• Demonstrated ability to align technical actions with strategic security outcomes
• Experience building pipelines that ingest, enrich and route data to security platforms
• Curiosity and passion for threat modelling, attack simulation , and adversary behaviour
• A pragmatic mindset: no cargo culting, just what works—incremental wins over theoretical perfection
• Strong hands-on knowledge of: Cloud-native services (AWS/GCP)
• SOAR tools and detection platforms
• Endpoint agents like Kolide, Santa, or Crowdstrike
• Identity protocols (OIDC, SAML), RBAC/least privilege

Responsibilities

• Own and operate our Security Operations (SecOps) and SOAR platforms, building playbooks and automation to reduce response time and improve signal fidelity
• Design and implement detection pipelines that surface high-fidelity alerts and enable effective incident triage
• Lead initiatives to harden our endpoints, SaaS controls, and workforce identity systems
• Deploy and manage security agents (EDR, device assurance, secrets managers) across our environment
• Collaborate cross-functionally to integrate security deeply into our SDLC and product architecture
• Leverage AI, scripting (Python, Golang) , and automation to reduce toil and scale our small but mighty security function
• Operate with a “crown jewels” strategy —prioritising what matters most and moving fast where it counts

Preferred Qualifications

Experience in web3, blockchain, or crypto threat environments

Benefits

• We commit to paying globally competitive salaries and contributions & we share our products' success through Employee Stock Options
• We also support our US Employees with Medical and 401K Insurance
• Our flexible working model blends the best of both worlds: Sydney-based employees enjoy three 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
• We offer USD $500 WFH allowance to set up your home office and USD $600 per annum to put toward your internet and phone usage
• We offer up to USD $1,350 per annum for any classes, courses or events to support your growth and development
• Enjoy access to free online courses via Udemy
• 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
• New parents receive 12 weeks of paid leave in our gender-neutral offer
• The birthing parent also gets an additional six weeks of leave for rest and recovery leading up to and after birth
• We also offer Miscarriage Leave and extra leave for IVF treatments
• Enjoy 2 additional paid annual leave days at the end of the year and a paid day off for your birthday