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Sabenzait

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Senior Platform Engineer (Crossplane & Backstage)

Johannesburg, Gauteng, South AfricaFull-timeSeniorPosted Oct 21, 2026

Job description

We are looking for a Senior Platform Engineer to design, build and operate scalable, production-grade platforms and self-service capabilities that empower engineering teams. You will shape cloud-native foundations, automation and internal developer platforms that improve reliability, speed and developer experience.

What you will do

  • Design and build self-service platforms, platform APIs, automation and system-level tooling used by other engineering teams.
  • Architect and operate highly available, secure and scalable cloud-native platforms on AWS.
  • Implement and evolve Infrastructure as Code using Terraform, CDK, Pulumi and Crossplane.
  • Build and operate Kubernetes environments with strong GitOps practices (ArgoCD / Flux, Helm and Kustomize).
  • Develop Kubernetes Operators and contribute to platform extensibility.
  • Implement monitoring, observability and reliability practices using CloudWatch, Prometheus, Grafana, Loki and X-Ray.
  • Drive CI/CD and DevOps practices with tools such as GitHub Actions and GitLab CI/CD.
  • Apply AWS best practices and the Well-Architected Framework across platform design and operations.
  • Collaborate with engineering teams to reduce toil, improve developer experience and enable self-service consumption of platform capabilities.

Requirements

  • 5+ years of experience in Platform Engineering, building self-service platforms and abstractions for engineering teams.
  • 6+ years of hands-on experience with public cloud, with deep expertise in AWS.
  • 6+ years of experience with containerisation and container platforms.
  • 2–3+ years of software engineering experience using languages such as Java, JavaScript, Golang or Python.
  • Expert knowledge of AWS cloud architecture, services and the Well-Architected Framework.
  • Strong experience with Kubernetes and container orchestration principles (CKA certification preferred).
  • Strong experience with GitOps using ArgoCD / Flux and Helm / Kustomize.
  • Hands-on experience with Crossplane, ArgoCD and Backstage (non-negotiable).
  • Proven experience building Kubernetes Operators (non-negotiable).
  • Strong experience implementing monitoring and observability solutions (CloudWatch, Prometheus, Grafana, Loki, X-Ray).
  • Strong understanding of DevOps practices and CI/CD tooling (GitHub Actions, GitLab CI/CD).
  • Proven track record of building complex, production-grade platforms and making them available for self-service use.
  • Solid understanding of cloud-native systems, distributed systems and service architecture trade-offs.

Description copied from Sabenzait's careers page. Read the full posting before you apply.

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