Find Senior infrastructure security engineer Jobs in Clontarf, D

Senior Infrastructure Security Engineer
Crusoe —Dublin, County Dublin
- Full-time
- AWS
- Linux
- AI
Quick apply
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Heidi —Dublin, County Dublin
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Amazon Development Centre Ireland Limited —Dublin, County Dublin
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Seapoint —Dublin, County Dublin
- Hybrid work
- DevOps
- AWS
- Linux
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Philip Lee —DUBLIN 4, County Dublin
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Senior Cybersecurity Engineer
Workday —Dublin, County Dublin
- €84,000–€126,000 a year
- Full-time
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Amazon Data Services Ireland Limited —Dublin, County Dublin
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Sr. Mechanical Engineer (CFD), Global Engineering Strategy
Amazon Data Services Ireland Limited —Dublin, County Dublin
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Manager EMEA North, Infrastructure Energy Team
Amazon Energy Eoraip Limited —Dublin, County Dublin
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Senior Technical Operations Engineer, Manufacturing Operations
Amazon Data Services Ireland Limited —Dublin, County Dublin
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HV/MV Senior Electrical Design Engineer, AWS HVDE Design Engineering EMEA
Amazon Development Centre Ireland Limited —Dublin, County Dublin
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Sr. Technical Program Manager, AWS Manufacturing Operations
Amazon Data Services Ireland Limited —Dublin, County Dublin
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Senior Cloud Security Engineer
Davy —Dublin, County Dublin
- Full-time
- Hybrid work
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Senior Project Manager
EMR Integrated Solutions —Dunboyne, County Meath
- €65,487–€68,761 a year
- Full-time
- Hybrid work
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- Bachelor's degree
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Senior Global Strategy Engineer, Global Engineering Strategy
Amazon Development Centre Ireland Limited —Dublin, County Dublin
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Site Reliability Engineering Manager, Security - Apple Services Engineering
Apple —Dublin, County Dublin
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Senior Identity & Access Management (IAM) Engineer
Workday —Dublin, County Dublin
- €84,000–€126,000 a year
- Full-time
- Azure
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Senior DevSecOps Engineer
Autodesk —Dublin, County Dublin
- Full-time
- Engineering
- AWS
- Scripting

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Senior Infrastructure Security Engineer

Crusoe -
Dublin, County Dublin

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Job details

Full-time
6 days ago

Benefits

Private dental insurance

Qualifications

CI/CD
Go
Kubernetes
Encryption
Google Cloud Platform
AWS
Terraform
DNS
SSH
Linux
AI
Python

Full job description

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from electrons to tokens — to power the world's most ambitious AI workloads. When you join Crusoe, you join a team that is building the future, faster.

We're in the midst of the greatest industrial revolution of our time. The demand for AI compute is boundless, and power is a bottleneck. We're solving that — with an energy-first approach that makes AI infrastructure better for the world and faster for the people innovating with AI.

We're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services.

If you want to do the most meaningful work of your career, help our customers and partners advance their AI strategies, and be part of a high-performing team that believes in each other, come build with us at Crusoe.

About This Role

Crusoe’s mission is to accelerate the abundance of energy and intelligence. We’re seeking a Senior Infrastructure Security Engineer dedicated to establishing a high-assurance security posture through deep visibility and granular access controls. In this role, you will leverage advanced tooling like Wiz to maintain an uncompromising security posture, using infrastructure service building as the primary mechanism to enforce these standards across our global compute platform.

What You’ll Be Working On

Drive comprehensive Infrastructure Security Posture Management (ISPM) and cloud-native visibility, leveraging tools like Wiz to identify risks, drift, and misconfigurations across cloud and on-prem infrastructure.
Championing Infrastructure-as-Code (IaC) standards (e.g., Terraform) to enforce secure defaults, immutability, and drift detection
Driving Infrastructure Security Access and Posture Management for both cloud and on-prem infrastructure to ensure comprehensive visibility and governance
Building automated security guardrails embedded directly into CI/CD and deployment pipelines
Operate security-as-a-service platforms (e.g., secrets management, certificate lifecycles) designed to reinforce our security posture and simplify developer access workflows.
Designing and operating certificate lifecycles (X.509, SSH) to support secure machine-to-machine trust
Contribute to identity-centric access control systems, specifically focusing on short-lived, Just-In-Time (JIT) access models, Zero Trust, and automated authorization policies to eliminate standing privileges.
Securing core network foundations, including global DNS architecture, service discovery, and network authentication systems
Designing and maintaining authentication controls for network infrastructure to ensure secure, monitored access
Partnering closely with infrastructure, platform, and SRE teams to identify and remediate security gaps in foundational systems

What You’ll Bring to the Team

5-8 years of hands-on experience in infrastructure engineering, SRE, or security engineering
Deep understanding of security principles across the stack, from Linux and container runtimes to cloud control planes
Proven experience using Infrastructure-as-Code (Terraform) to manage complex, multi-environment infrastructure at scale
Strong knowledge of cryptography, secrets management, PKI, and modern authentication standards
Experience securing public cloud (AWS, GCP) and/or bare-metal environments
Strong networking fundamentals, including routing, segmentation, firewalls, and Zero Trust architectures
Hands-on experience with Kubernetes and container security, including secure secrets injection into microservices
Fluency in at least one programming language (Go or Python preferred) for automation and tooling

Bonus Points

Background securing high-scale cloud or AI infrastructure
Experience implementing Zero Trust identity architectures end-to-end
Familiarity with bare-metal provisioning and data center security considerations
Experience building or operating internal security platforms (e.g., Vault-as-a-Service)
Deep experience with Wiz or similar CSPM platforms for enterprise-scale risk management.

Benefits:

Crusoe also offers a competitive benefits package designed to support financial security, health, and overall well-being, including pension contributions, private health and dental insurance, income protection, life assurance and more.

Compensation:

Compensation will be paid as salary or hourly. Compensation to be determined by the applicant’s education, experience, knowledge, skills, and abilities, as well as internal equity and alignment with market data.

Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.

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