Senior Platform Engineer - Security

The Role

This role sits at the intersection of cloud infrastructure and security. We are looking for an inquisitive, highly thorough engineer who analyzes complex systems across AWS, networking, client-server, and web layers to identify vulnerabilities and structural weaknesses.

We’re looking for someone who understands more than a single cloud tool, we need a problem solver with deep technical instincts and a relentless drive to investigate root causes. If you naturally question assumptions, pull threads until issues are fully resolved, and want to apply that rigor to infrastructure security, this role is for you.

You will partner with platform, software, and data engineering teams to integrate security directly into core infrastructure and development workflows.

Why join us?

Mitti by SafetyCulture is a global tech company, just not the kind you're picturing. Our almost 1,000-person team builds tools that make work better for the three billion frontline workers who keep the world moving. We've got big tech scale, without the sign-off layers or corporate theatre. This next chapter is about scaling smart, powered by AI, a clear vision and real ownership.

Big tech impact, without the big tech ick.

About you

• Proven background in infrastructure engineering across AWS and core networking principles
• Demonstrated inquisitiveness and attention to detail — a track record of investigating unexpected behavior to complete root-cause resolution
• Strong active interest in cloud security fundamentals and defensive engineering
• High autonomy and ownership; able to drive complex technical tasks without requiring predefined playbooks
• Clear technical communication skills to influence engineering teams across the organization
• Practical coding experience (Python, Go, or similar) along with hands-on Terraform and CI/CD knowledge

Nice to have

• Experience with CSPM tools (e.g., CrowdStrike) or enterprise identity management (Okta, Google Workspace, Kandji, Intune)
• Working knowledge of Kubernetes administration and security practices
• Background in systems administration or network security

How you will spend your time

• Audit and advise on how to harden, and configure AWS infrastructure and core networking stack
• Integrate automated security checks into CI/CD pipelines and infrastructure-as-code (Terraform)
• Manage security posture across Kubernetes clusters and CrowdStrike CSPM environments
• Conduct deep-dive investigations into security incidents and edge cases, delivering end-to-end remediation
• Collaborate cross-functionally to influence architectural and security decisions early in design cycles
• Develop automation to eliminate repetitive security tasks, leveraging AI tools where effective
• Own key infrastructure security initiatives with mentorship from engineering leadership

Success looks like

• You are recognized as a key technical resource for cloud infrastructure security across engineering
• Our whole engineering team benefits from a greater understanding and appreciation of the benefits of security in our cloud platforms
• Core AWS and Kubernetes environments are measurably hardened and automated
• Manual security operations and toil are systematically reduced through custom automation and tool integration

We’re committed to building inclusive teams and cultivating a sense of belonging so our people can bring their whole authentic selves to work each day. We seek to make reasonable adjustments throughout our recruitment process to create an even playing field for all candidates. Thanks to the tireless efforts of the entire Mitti team we’ve built an incredible culture which has seen us recognised as a Best Place to Work in Australia, the US and the UK.

Even if you don't meet every requirement listed in the ad, please consider applying for this role. We prioritise inclusion and value individuals with potential over a checklist of qualifications. Don't rule yourself out, hit that apply button if this job resonates with you

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