Senior Infrastructure Engineer

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

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As a world leading provider of integrated solutions for the alternative investment industry, Alter Domus (meaning “The Other House” in Latin) is proud to be home to 90% of the top 30 asset managers in the private markets, and more than 6,000 professionals across 24 jurisdictions.

With a deep understanding of what it takes to succeed in alternatives, we believe in being different - in what we do, in how we work and most importantly in how we enable and develop our people. Invest yourself in the alternative, and join an organization where you progress on merit, where you can speak openly with whoever you are speaking to, and where you will be supported along whichever path you choose to take.

Find out more about life at Alter Domus at careers.alterdomus.com

JOB DESCRIPTION:

At Alter Domus, we are looking for a Senior Infrastructure & Cloud Engineer who gets things done. Someone who rolls up their sleeves, digs into complex infrastructure problems, and owns them through to resolution. You will be part of a team operating mission-critical environments in the financial services sector where uptime, speed, and precision are non-negotiable.

This is a hands-on role. You will be troubleshooting, building, improving, and maintaining infrastructure day to day, working under pressure, adapting quickly to change, and taking full ownership of the platforms you touch.

Key Responsibilities:

• Operate, maintain, and continuously improve on-premises and cloud infrastructure across AWS and Azure.
• Diagnose and resolve complex infrastructure incidents quickly and effectively, you are the person who finds the root cause and fixes it.
• Implement infrastructure changes, upgrades, and improvements following change management processes in a regulated environment.
• Build and maintain hybrid cloud connectivity between datacenters and cloud platforms.
• Configure and manage high availability and disaster recovery mechanisms, ensuring RTO/RPO targets are always met.
• Manage and improve Citrix, VMware virtualisation environments, SAN/NAS storage, and backup/recovery platforms.
• Work with container platforms: deploy, troubleshoot, and maintain Kubernetes and OpenShift workloads.
• Enforce security controls across infrastructure - network segmentation, Zero Trust, IAM, PAM, MFA and remediate vulnerabilities.
• Automate repetitive operational tasks using scripting and IaC tools (Terraform, Ansible).
• Monitor infrastructure health, respond to alerts, and drive proactive capacity and performance improvements.
• Collaborate with architecture, security, and application teams to implement technical requirements correctly and on time.

Required Qualifications

• 5+ years of hands-on experience managing enterprise infrastructure in production environments.
• Proven experience working in mission-critical, high-availability environments - financial services or similarly regulated sectors a strong plus.
• Strong practical experience with AWS infrastructure: EC2, VPC, IAM, S3, RDS, Transit Gateway, Direct Connect, CloudWatch you have built and fixed things there, not just read about them.
• Solid working knowledge of Azure and familiarity with GCP.
• Heavy hands-on experience with Citrix distributed environments, Nutanix HCI and VMware vSphere/ESXi.
• Working knowledge of networking: VLANs, firewalls, load balancers, DNS, VPN, and hybrid connectivity.
• Experience managing Active Directory, Entra ID, IAM, PAM, SSO, and MFA.
• Ability to work under pressure, prioritise competing demands, and make sound decisions fast.
• Good-to-have scripting and automation: Bash, Python, PowerShell, Terraform, or Ansible.
• Degree in Computer Science, Telecommunications, or equivalent hands‑on background.

Nice to Have

• AWS Solutions Architect Associate/Professional or Azure Administrator certification.
• Nutanix Certified Professional (NCP) or VMware VCP.
• Experience with monitoring stacks: Prometheus, Grafana, Datadog, Dynatrace, or similar.
• Knowledge of ITIL practices applied in a real operational context.
• Exposure to AIOps or AI-assisted monitoring tools.
• Experience with DORA or GDPR compliance requirements.

Your Profile

• Action-oriented - you don't wait to be told twice and you follow through. You see something to improve, get your hands on it.
• Calm under pressure, with good judgement in high-stakes situations.
• Methodical but fast - you think before you act, but you act decisively.
• Clear communicator, able to report status and progress to technical peers and managers alike.
• Team player who shares knowledge and supports colleagues when things get tough.

Comfortable with change - you adapt quickly when priorities shift.

WHAT WE OFFER:

We are committed to supporting your development, advancing your career, and providing benefits that matter to you.

Our industry‑leading Alter Domus Academy offers six learning zones for every stage of your career, with resources tailored to your ambitions and resources from LinkedIn Learning.

Our global benefits also include:

• Support for professional accreditations such as ACCA and study leave
• Flexible arrangements, generous holidays, plus an additional day off for your birthday!
• Continuous mentoring along your career progression
• Active sports, events and social committees across our offices
• 24/7 support available from our Employee Assistance Program
• The opportunity to invest in our growth and success through our Employee Share Plan

Equity in every sense of the word:

We are in the business of equity, in every sense of the word. For us, this means taking action to ensure every colleague has equal opportunity, valuing every voice and experience across our organisation, maintaining an inclusive culture where you can bring your whole self to work, and making Alter Domus a workplace where everyone feels they belong.

We celebrate our differences, and understand that our success relies on diverse perspectives and experiences, working towards shared goals and a common purpose. We take pride in creating a workplace where all our people are empowered to be truly invested in the alternative and bring their whole selves to work.

We are committed to ensuring a welcoming recruiting and onboarding process for everyone. Please contact our hiring team if you require any accommodations to make our recruitment process more accessible for you.