Senior Platform Engineer: CI/CD, Cloud & Security

Jobgether SRL; Portugal; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Competitive compensation

Technical ownership

International environment

Professional development

Technical autonomy

Continuous innovation

Inclusive culture

Career growth

Job summary

Jobgether SRL in Portugal is seeking an experienced Staff Platform Engineer to own critical infrastructure and CI/CD systems across a growing engineering organization. You will shape architecture, scalability, and security of the CI/CD platform while enabling teams to build, deploy, and operate software efficiently.

You will lead infrastructure as code, cloud security, and GitOps practices, collaborating across multinational teams to improve reliability, developer productivity, and platform

Qualifications

• Extensive hands‑on experience with AWS cloud infrastructure, including designing, deploying, securing, and operating production environments.

Responsibilities

• Own, maintain, and evolve the CI/CD platform, including GitHub Actions with self-hosted runners powered by RunsOn, and lead the ongoing migration and modernization of the Jenkins infrastructure.
• Define and implement platform architecture decisions, balancing scalability, reliability, maintainability, security, and cost as requirements evolve.
• Build, maintain, and improve Infrastructure as Code across AWS using Terraform, Terragrunt, and Terramate, following reusable and standardized component patterns inspired by CloudPosse.
• Design and implement secure-by-default delivery pipelines, including branch protection, pull request approval rules, secrets management with SOPS, and production approval workflows for critical deployments.
• Strengthen cloud security by transitioning from IAM users and long-lived access keys toward role-based access, enforcing least-privilege principles, and addressing infrastructure security gaps.
• Identify and remediate risks related to exposed network ports, unmanaged credentials, insufficient access controls, and missing security guardrails.
• Support and improve Kubernetes-based infrastructure using Amazon EKS, Helm, and ArgoCD, promoting reliable deployments and consistent GitOps practices.
• Contribute to the development and maintenance of the observability stack, including Grafana and Prometheus, to improve monitoring, troubleshooting, and system reliability.
• Enhance the internal developer platform and tooling, including Backstage, to simplify workflows and improve the developer experience across engineering teams.
• Review, refactor, and optimize existing Terraform modules, cloud infrastructure, and delivery pipelines, identifying opportunities to improve quality, consistency, and operational efficiency.
• Participate in platform support and incident triage, investigating production issues, identifying root causes, and implementing long-term improvements to prevent recurrence.
• Develop automation and self‑service tooling that reduces manual intervention, streamlines support processes, and increases engineering team productivity.
• Anticipate and address complex operational scenarios, including significant traffic spikes, regional outages, and changing infrastructure requirements, while maintaining service continuity.
• Apply AI‑assisted engineering tools thoughtfully, validating generated outputs, understanding their limitations, and making sound technical decisions based on independent judgment.
• Share technical knowledge, establish engineering best practices, and contribute to a welcoming, collaborative, and continuously improving platform team.

Skills

AWS cloud

CI/CD

Terraform

Kubernetes

GitOps

Security best practices

Observability

Backstage

ArgoCD

EKS

Tools

GitHub Actions

Jenkins

Terragrunt

Terramate

Terraform

Kubernetes

Helm

ArgoCD

Grafana

Prometheus

Backstage

Job description

Jobgether SRL in Portugal is seeking an experienced Staff Platform Engineer to own critical infrastructure and CI/CD systems across a growing engineering organization. You will shape architecture, scalability, and security of the CI/CD platform while enabling teams to build, deploy, and operate software efficiently.

You will lead infrastructure as code, cloud security, and GitOps practices, collaborating across multinational teams to improve reliability, developer productivity, and platform