Senior Linux & Kubernetes Infra Engineer

Netrio; Belfast City District; On-site; GBP 70,000 - 100,000; Full time

Job summary

Netrio is seeking an experienced Senior Linux Infrastructure Engineer to maintain, secure, troubleshoot, and improve enterprise Linux infrastructure in a high-availability financial technology environment. You will support Linux servers, Kubernetes-based applications, identity management, patching, automation, and AWS-related services.

The role emphasizes ownership, independent work, and collaboration across teams to strengthen operational coverage and support expanding trading operations.

Qualifications

• 5+ years of professional Linux systems engineering or administration experience.
• Strong RHEL administration and troubleshooting experience; familiarity with Ubuntu or comparable distributions.
• Experience integrating Linux authentication and access management with Microsoft Active Directory.
• Hands-on experience supporting Kubernetes clusters and containerized applications.
• Experience with Bash, Python, Ansible, or comparable scripting and automation technologies.
• Working knowledge of AWS infrastructure and cloud operations.

Responsibilities

• Administer, maintain, secure, and troubleshoot enterprise Linux environments, primarily RHEL and Ubuntu.
• Support physical servers, virtual machines, storage, networking, and Linux-based applications.
• Manage OS patching, upgrades, performance, capacity, and lifecycle management.
• Administer Linux virtualization technologies, including KVM.
• Maintain reliable, documented, and recoverable production infrastructure.
• Develop standardized configurations, operational procedures, and automation.

Skills

Linux systems engineering

RHEL administration

Kubernetes

RBAC access control

Automation (Scripting)

AWS basics

Tools

KVM virtualization

GitLab CI/CD

Docker

Terraform

HashiCorp Vault

Prometheus

Job description

Netrio is seeking an experienced Senior Linux Infrastructure Engineer to maintain, secure, troubleshoot, and improve enterprise Linux infrastructure in a high-availability financial technology environment. You will support Linux servers, Kubernetes-based applications, identity management, patching, automation, and AWS-related services.

The role emphasizes ownership, independent work, and collaboration across teams to strengthen operational coverage and support expanding trading operations.