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Principal Engineer, Platform

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Principal Engineer, Platform in Australia new

  • Firmus Technologies
  • Full time
  • Email
  • Sydney

Responsibilities

  • Own the architecture and multi-site management plane of the engineering platform across public cloud, on-premises infrastructure, and AI factory sites.
  • Define scalable site and deployment architectures, including Kubernetes and hypervisor cluster construction, upgrades, recovery, networking, and release management.
  • Build engineer self-service through a shared platform API, CLI, automation, developer portal, service catalogue, templates, and production-readiness scorecards.
  • Provide multi-cluster deployment across regions and data centres while isolating customer workloads and maintaining site operation during orchestrator outages.
  • Set platform SLOs and error budgets, lead major incident response, and ensure post-mortems result in corrective fixes.
  • Establish delivery standards covering code review, acceptance tests, traceability, progressive rollout, rollback, artifact provenance, and application security controls.
  • Provide platform services for secrets, certificates, single sign-on, mutual TLS, short-lived credentials, automated rotation, patching, and compliance evidence.
  • Embed SOC 2 Type 2 and ISO 27001 controls into policy-as-code workflows and detect and correct configuration drift.
  • Own platform and cloud cost design and establish shared cost-management paths for teams and sites.
  • Mentor engineers, lead design and code reviews, set secure AI-assisted development practices, conduct technical interviews, and shape the platform roadmap with partner teams.
  • Represent the platform team in customer and auditor reviews and participate in the on-call rotation with occasional overseas travel.

Requirements

  • Bachelor's degree in computer science or a related technical field, or equivalent practical experience.
  • 10+ years of platform, infrastructure, or software engineering experience, including at least 3 years at principal level or equivalent.
  • Experience setting technical direction delivered by multiple teams while remaining hands-on.
  • Experience owning a golden path with infrastructure as code, CI/CD, GitOps, progressive rollout, rollback, artifact signing and provenance, and security gates.
  • Experience running a platform as a product with self-service templates and an adopted platform API or CLI measured by adoption and delivery performance.
  • Experience building, upgrading, and recovering Kubernetes on self-managed and virtualised infrastructure as well as in public cloud such as AWS across multiple sites.
  • Deep practical knowledge of Kubernetes internals, including the API server, etcd, scheduling, networking, storage, and admission control.
  • Strong programming ability in Go or Python, including services, controllers, or tools consumed by other teams.
  • Experience building platform security capabilities such as secrets management, certificate automation, short-lived credentials, and fleet patching under SOC 2 Type 2, ISO 27001, or equivalent controls.
  • Experience running reliability programmes involving SLOs, error budgets, change control, and incident reviews.
  • Clear written and verbal English communication for explaining technical problems, decisions, and trade-offs to engineers, executives, and customers.
  • Willingness to join the on-call rotation and travel overseas occasionally.

Benefits

  • Full-time employment.
  • Candidates may be based in Australia or Singapore.
  • The role reports to the Senior Manager, Platform Engineering.

Firmus Technologies

Firmus Technologies delivers cutting‑edge digital solutions that empower businesses to innovate and scale efficiently. Our team blends industry expertise with agile development practices to craft customized software that meets each client’s unique needs. By fostering collaboration and continuous ...

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