Senior Principal Platform Engineer (Platform Development Manager)

About the role

A global field service management software company, founded in Brisbane in 2002 and serving customers in Australia, New Zealand, the UK, Canada and the US, is looking for a Senior Principal Platform Engineer to own the cloud foundation of its multi-region SaaS platform. Reporting to the Platform Engineering Manager, you will set the technical direction for the infrastructure layer and stay hands-on, working alongside Principal Software Engineers and product engineering leads.

Key responsibilities

• Own the technical direction for cloud infrastructure on AWS: Kubernetes fleets on Amazon EKS, EC2, compute, networking, identity and storage across all regions.
• Design and run a resilient multi-region platform, including VPC design, multi-account structure, autoscaling, disaster recovery and data residency controls for five countries.
• Lead infrastructure design decisions, architect solutions with software engineers and lead build-versus-buy choices.
• Lead and mentor a team of up to six Platform engineers and own technical hiring.
• Write Terraform for the whole AWS footprint and build self-service provisioning paths.
• Build CI/CD and observability foundations with GitHub Actions, Jenkins, CloudWatch, Datadog, Grafana and Prometheus.
• Own reliability and cost: SLOs, AWS spend and FinOps, capacity planning and major incident response including on-call rotations.
• Own infrastructure security controls and standards: IAM, organizations, SSO, secrets management, network segmentation, supply-chain security, encryption with KMS, and controls supporting ISO 27001 / SOC 2.

Required profile

• 10+ years in DevOps, platform or infrastructure engineering, including several years at senior or principal level on production SaaS platforms.
• Experience leading and mentoring engineers and influencing technical direction.
• Advanced English.
• Nice to have: AWS Solutions Architect Professional, AWS DevOps Engineer Professional, AWS Security Specialty, CKA or CKS, and experience with ISO 27001 / SOC 2 or legacy infrastructure modernization.

Required skills

• Deep hands-on AWS expertise: EKS, EC2, VPC, Transit Gateway, PrivateLink, Route 53, IAM, KMS, and multi-account, multi-region architecture.
• Expert-level Terraform or equivalent IaC.
• CI/CD and GitOps workflows (GitHub Actions, Jenkins, Argo CD).
• Observability at scale with CloudWatch, Prometheus, Grafana, OpenTelemetry or Datadog, and SLOs.
• Incident response and post-incident review experience.
• Scripting in Python, Go or Bash.

What we offer

• Permanent contract with all legal benefits.
• Competitive salary and relocation bonus to Medellín.
• Private health insurance.
• On-site role in Medellín with parking.

To apply, send a CV and a cover letter (no more than two pages) describing an EKS or AWS platform project, a security or compliance improvement, and leadership or influence on an infrastructure change or major incident.