Senior Platform Engineer - Security

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. Every permanent team member gets equity, so when we grow, you do too. This next chapter is about scaling smart, powered by AI, a clear vision and real ownership.

Big tech impact, without the big tech ick.

The Role

This role exists at the intersection of infrastructure and security. You'll be a versatile engineer who thinks across the whole stack — AWS, networking, client-server, mobile, and web — and who's genuinely curious about how all the pieces fit together and where they can break.

We're not looking for someone who's spent their whole career narrowly specialised in one cloud service. We're looking for a problem solver with real infrastructure depth and a tenacious, detail-oriented streak — someone who pulls a thread until it's fully unravelled, rather than stopping at the first plausible answer. If that curiosity has started pulling you toward security, or you're already partway down that path and want to go deeper, this role is built for you.

You'll partner closely with our platform, software, and data engineering teams, embedding security into everyday infrastructure and development work rather than bolting it on afterward. Over time, you'll become the person engineers come to when something needs to be built right the first time, not just fixed later.

How you will spend your time

• Work across our AWS environment and the broader infrastructure stack — identifying and correcting misconfigurations, hardening systems, and improving how we build and deploy

• Embed security practices into CI/CD pipelines, developer tooling, and infrastructure-as-code

• Get hands-on with our Kubernetes environment (our whole platform runs on it) and our CrowdStrike CSPM setup

• Investigate issues end-to-end — not just flagging problems, but digging in and fixing them yourself

• Partner with engineering teams across the business, influencing design and implementation decisions without relying on formal authority

• Build automation to reduce manual, repetitive security and infrastructure work, including using AI tools where they genuinely speed things up

• Grow into owning broader security initiatives as your experience and interest develop, with mentorship from our Head of Security and the platform team

About you

• Strong infrastructure engineering background across AWS and ideally beyond (networking, client-server, mobile, or web architecture) — you've worked across a genuinely broad stack, not just one narrow specialty

• Naturally curious and tenacious — when something looks slightly off, you keep digging until you understand why, rather than accepting the first explanation

• A genuine interest in security, whether that's a growing focus already or a direction you're actively moving toward — you don't need to be a certified security specialist already, but the drive and curiosity need to be real

• Comfortable operating autonomously, owning problems end-to-end rather than working purely off tickets or playbooks

• Strong communicator who can work cross-functionally and influence engineers without formal authority

• Coding experience in Python, Go, or similar, with working knowledge of Terraform and CI/CD practices

Nice to have

• Hands-on experience with CrowdStrike or other CSPM tooling

• Experience securing corporate IT systems such as Okta, GSuite, Kandji, or Intune

• Kubernetes exposure (even at a foundational level — our whole platform runs on it)

• System administration or network engineering background

Success looks like

• You've become a trusted voice across engineering teams on infrastructure and security, someone teams want to loop in early rather than avoid

• You've meaningfully hardened and automated parts of our AWS and Kubernetes environment

• Your security knowledge and ownership has visibly grown since you started, supported by the team around you

• You've helped reduce manual security toil through automation, including AI-assisted tooling where appropriate

More than a job

• Equity with high growth potential, and a competitive salary

• Flexible working arrangements

• Access to professional and personal training and development opportunities

• Hackathons, Workshops, Lunch & Learns

Office benefits

• In-house Culinary Crew serving up daily breakfast, lunch and snacks

• Barista coffee machine, craft beer on tap, boutique wines and a range of non-alcoholic beverages

• Wellbeing initiatives such as EAP services and generous parental leave policy

• Quarterly celebrations and team events

• On-site gym, table tennis, board games, books library, and pet-friendly offices

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

You can find out more about life at Mitti via Youtube , Twitter , Instagram and LinkedIn.

To all recruitment agencies, we do not accept resumes or partnership opportunities. Please do not forward resumes to Mitti or any of our employees. We are not responsible for any fees associated with unsolicited resumes.