As a result of continued growth within Seisma Group, an exciting opportunity has arisen for a Senior Platform Engineer to join one of our premium clients in Sydney.

Backed by Australian-owned Superannuation funds, Seisma is committed to growth both organically and through acquisition. With over 550 employees across Melbourne, Sydney, and Recent Zealand, we are expanding rapidly with a strong blueprint for further growth this year.

About the Role

We are seeking a Senior Platform Engineer to join the SaaS Security Posture Management (SSPM) Squad within CBA’s Cyber Security division. This role plays a critical part in supporting CBA’s major modernisation program to strengthen the security of its SaaS ecosystem.

You’ll be responsible for implementing, configuring, tuning, and managing CBA’s SSPM technology solutions, enabling secure integrations with SaaS partners and driving automation to support self-service across the enterprise.

Key Responsibilities

- Implement, configure, and manage SaaS Security Posture Management (SSPM) and Threat Protection (TP) solutions.
- Support the design, build, and deployment of custom connectors to integrate CBA’s SaaS partners into the SSPM platform.
- Tune and maintain security posture baselines and associated threat detection configurations for onboarded SaaS platforms.
- Contribute to the automation development and DevSecOps practices, enabling teams to self-serve through efficient, secure automation.
- Collaborate closely with platform, security, and application teams to ensure smooth onboarding and continuous improvement of SaaS security capabilities.
- Work with CI/CD pipelines to deliver secure and repeatable deployments.
- Support the development and integration of security-focused automation tools and processes.

Skills & Experience

- Proven experience as a Platform Engineer, DevSecOps Engineer, or similar role in a large enterprise environment.
- Strong hands-on experience with Python for automation and integration development.




- Experience using Docker for containerization and deployment.
- Proficiency with AWS services and Infrastructure as Code (IaC) (e.g., CloudFormation, Terraform).
- Experience working with CI/CD pipelines such as GitHub Actions, GitLab, or Jenkins.
- Familiarity with SaaS Security Posture Management tools and best practices (experience with SSPM platforms is highly regarded).
- Solid understanding of security controls, threat detection, and cloud security principles.
- Excellent problem‑solving, collaboration, and communication skills.

Nice to Have

- Experience with threat detection and response tools in SaaS or cloud environments.
- Exposure to security automation frameworks or self‑service platforms.
- Knowledge of modern DevSecOps practices and cloud security governance.

Our Capabilities

We've been doing this for businesses of all sizes across many different industries for almost 18 years. You can read our story on our website at "Join Our Team", but the short version is that we are on a mission to become the largest 100% Australian and New Zealand-owned IT professional services group. We are on a steady acquisition and organic growth journey, and we invite you to join us!

Working with Seisma

- Our workforce currently numbers more than 400 consultants across many different industries. This provides great opportunities to network with people on a similar career journey.
- Our dedication to diversity and inclusiveness ensures that every employee feels valued and proud. Policies, initiatives and tools are just the first steps; we truly support diversity actions. Our team recently voted us a Great Place to Work!
- With a growing client list around Australia and New Zealand, your contract has plenty of opportunities to be extended beyond this role.

Express your interest

We encourage all diverse, suitably qualified candidates with valid Australian working rights to apply. We will be in touch with shortlisted applicants, no agencies please.

Seniority level

Mid-Senior level

Employment type

Contract

Industries

IT Services and IT Consulting and Banking

#J-18808-Ljbffr

📌 Platform Engineer (New South Wales)
🏢 Seisma Group
📍 New South Wales