Senior Platform Engineer - AWS, Kubernetes & IaC

act digital; Portugal; On-site; EUR 90,000 - 120,000; Full time

Job summary

act digital seeks a senior DevOps/Platform Engineer to ensure the availability, security and efficiency of an AWS-based data platform. You will plan upgrades for Vault, Nexus and GitLab, upgrade EKS clusters, and migrate components with minimal downtime.

You will also enhance monitoring, automate recovery, optimize costs, and develop reusable Terraform/Ansible modules while enforcing security and change-control processes.

Qualifications

• Minimum 5 years of experience in DevOps, SRE or Platform Engineering.
• At least 3 years hands-on IaC experience in AWS production environments.
• Strong AWS knowledge (EC2, S3, IAM).
• Proficient in Kubernetes including Helm and HPA.

Responsibilities

• Ensure availability, security, stability and efficiency of an AWS-based enterprise data platform.
• Plan and execute upgrades of self-hosted Vault, Nexus and GitLab with backups and rollback plans.
• Upgrade EKS clusters and add-ons with node group migrations without downtime.
• Migrate ingress controller to a replacement solution while maintaining access to services.
• Upgrade Terraform/OpenTofu and AWS provider with non-destructive plans.
• Deliver version/dependency updates for Kafka, Jenkins and Uptime Kuma.
• Design PostgreSQL high-availability and perform failover testing.
• Improve monitoring/alerting and implement self-healing mechanisms (probes, restarts, autoscaling).
• Optimize EKS costs via rightsizing and Kubecost.
• Develop reusable Terraform/Ansible modules with semantic versioning and automated tests.
• Manage infrastructure changes via GitLab MR approvals and change control.
• Secure secrets with Vault and enforce least privilege.
• Address security findings from Checkmarx, Fortify, etc. in IaC.
• Produce technical designs and ITIL-aligned procedures.
• Maintain Confluence docs and monthly progress reports.

Skills

DevOps

SRE

IaC

Terraform

OpenTofu

Ansible

AWS

EKS

Kubernetes

PostgreSQL

Vault

Nexus

GitLab

CI/CD

Prometheus

Grafana

Velero

Linux

Bash

Jira

Confluence

VS Code

Portuguese

English

Tools

GitLab

Jenkins

Confluence

Jira

VS Code

Job description

act digital seeks a senior DevOps/Platform Engineer to ensure the availability, security and efficiency of an AWS-based data platform. You will plan upgrades for Vault, Nexus and GitLab, upgrade EKS clusters, and migrate components with minimal downtime.

You will also enhance monitoring, automate recovery, optimize costs, and develop reusable Terraform/Ansible modules while enforcing security and change-control processes.