Platform Engineer

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.

We're on the lookout for a mid-level Platform Engineer to join our Network Strategy and Architecture team based in Sydney. In this role, you'll help build, enhance, and operate our hybrid-cloud developer platform — working with cutting-edge tools like GitLab, HashiCorp Vault, Ansible Automation Platform, Terraform, Pulumi, and Kubernetes clusters (Rancher and OpenShift). If you're someone who loves automating the boring stuff and making developers' lives easier, this one's for you.

What You'll Do

• Administer and operate GitLab, including CI pipelines, runners, and integrations
• Support Vault operations — auth methods, policies, secret engines, and workload integrations
• Manage day-to-day automation tasks using Ansible Tower/AWX, including playbooks and job templates
• Maintain cloud-native infrastructure across Kubernetes clusters and supporting components
• Develop and maintain Terraform/Pulumi modules and infrastructure deployments
• Contribute to GitOps workflows using Argo CD or similar tools
• Apply platform security practices including secrets hygiene, RBAC, and image scanning
• Support monitoring, alerting, and SLO tracking for platform components
• Manage and operate object storage solutions (e.g., MinIO) for platform services
• Create and maintain platform documentation, runbooks, and operational guides
• Participate in incident response and on-call rotation for platform components
• Provide technical support to product teams onboarding to the platform
• Collaborate with Senior Engineers to implement improvements and reduce toil

What Makes You Perfect for the Role?

• Solid hands-on experience in Platform Engineering, DevOps, or SRE roles with at least 4+ years of experience
• Solid experience with GitLab CI/CD — pipelines, runners, and YAML configuration
• Practical knowledge of HashiCorp Vault (policies, engines, auth methods) and automation using Ansible
• Strong understanding of Terraform and/or Pulumi for IaC delivery
• Exposure to Kubernetes (deployments, Helm/Kustomize, troubleshooting basics)
• Familiarity with GitOps concepts and tools (Argo CD or Flux)
• Scripting skills in Bash, Python, or TypeScript
• Experience contributing to technical documentation, runbooks, and platform guides
• A problem-solving mindset with a curiosity to dig into complex systems
• Great communication skills and a collaborative approach to working with developers

Bonus Points For

• Experience with hybrid cloud environments (Azure, AWS, on-prem VMware)
• Familiarity with observability and log management systems (Prometheus, Grafana, ELK/EFK, OpenTelemetry)
• Exposure to AI/ML frameworks (LangChain, PyTorch) or workflow orchestration tools (N8N, Temporal) highly valued
• Experience with object storage platforms (MinIO or equivalent)

The good stuff….

• 💜 Competitive remuneration and employee discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and unique shopping discounts with our retail partners.
• 🏠 Flexible working arrangements with opportunities to work three days in the office, two days remote or home.
• 🙌 Vibrant and collaborative office campus that includes cafes, convenience store, chill out zones, GP, post office, gym and on-site childcare centre.
• 📅 Competitive leave policies, including additional 'Connected' days to focus on culture, family, health, community, or whatever's important to you.
• 👨‍👩‍👧 We support growing families with inclusive, carer-neutral paid Parental Leave of up to 16 weeks.
• 🌱 Direct your own development and build future-ready skills with Optus U's industry-focused micro-credentials, developed with La Trobe and Macquarie Universities.
• 🤝 Build meaningful connections through employee-led networks and diversity initiatives including Culture Connect, Elevate Women, Disability Network and Express Yourself (LGBTQIA+).
• 🧘 Put your wellbeing first with free access to counselling and support services, 24/7 — in-person, by phone, SMS, or video.
• 🚌 Free Optus bus from Macquarie University Metro Station (every 6-8 minutes); morning and afternoon.

At Optus, we are strengthened by others and that means valuing diversity and saying 'yes' to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email [email protected] or call 1800 309 170.

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity