Senior Cloud & Infra Engineer — Hybrid & HA

Alter Domus; Madrid; On-site; EUR 65,000 - 95,000; Full time

Benefits offered by this job

ACCA study leave

Flexible holidays

Mentoring & career development

Employee Share Plan

Job summary

Alter Domus is seeking a Senior Infrastructure & Cloud Engineer to own and improve mission-critical infrastructure across on-prem and cloud platforms. You will troubleshoot, build, and maintain systems under pressure, delivering reliable uptime in a regulated financial services context.

The role requires hands-on expertise with AWS, Azure, Kubernetes/OpenShift, and virtualization platforms, plus strong automation using Terraform and Ansible.

Qualifications

• 5+ years of hands-on experience managing enterprise infrastructure in production environments.
• Proven experience in mission-critical, high-availability environments - financial services or regulated sectors are a plus.
• Strong experience with AWS: EC2, VPC, IAM, S3, RDS, Transit Gateway, Direct Connect, CloudWatch.
• Solid knowledge of Azure and familiarity with GCP.
• Hands-on experience with Citrix, Nutanix, VMware vSphere/ESXi.
• Networking knowledge: VLANs, firewalls, load balancers, DNS, VPN, hybrid connectivity.
• Experience with AD, Entra ID, IAM, PAM, SSO, MFA.
• Scripting and automation: Bash, Python, PowerShell, Terraform, Ansible.
• Degree in Computer Science or related field.

Responsibilities

• Operate, maintain, and improve on-premises and cloud infrastructure across AWS and Azure.
• Diagnose and resolve complex infrastructure incidents quickly and effectively.
• Implement changes, upgrades, and improvements following change management in a regulated environment.
• Build and maintain hybrid cloud connectivity between datacenters and cloud platforms.
• Configure high availability and disaster recovery mechanisms with RTO/RPO targets.
• Manage Citrix, VMware, and Nutanix environments, storage, and backup/recovery platforms.
• Work with Kubernetes and OpenShift workloads.
• Enforce security controls: IAM, PAM, MFA, Zero Trust, network segmentation.
• Automate tasks using Terraform and Ansible.
• Monitor health, respond to alerts, drive capacity and performance improvements.
• Collaborate with architecture, security, and application teams to meet requirements.

Skills

Cloud infrastructure

Incident diagnosis

Security controls

IaC

Automation

Communication

Team player

Education

Degree in Computer Science or related

Tools

AWS

Azure

GCP

Citrix

Nutanix HCI

VMware vSphere/ESXi

Kubernetes

OpenShift

Terraform

Ansible

Bash

Python

PowerShell

Job description

Alter Domus is seeking a Senior Infrastructure & Cloud Engineer to own and improve mission-critical infrastructure across on-prem and cloud platforms. You will troubleshoot, build, and maintain systems under pressure, delivering reliable uptime in a regulated financial services context.

The role requires hands-on expertise with AWS, Azure, Kubernetes/OpenShift, and virtualization platforms, plus strong automation using Terraform and Ansible.