OpenShift Architect (On-Premises Infrastructure & GitOps)

Test Triangle Ltd; Dublin; On-site; EUR 140,000 - 190,000; Full time

Job summary

Zohorecruit seeks an OpenShift Architect to lead the design, build, and implementation of on-prem OpenShift infrastructure in a highly regulated environment. You will own the platform lifecycle, run design workshops, and drive greenfield deployments from scratch across multiple client environments.

You will architect enterprise networking (OVN-Kubernetes, Multus, NMState), implement GitOps (Argo CD), and guide migrations from legacy hypervisors to OCP. On-site in Dublin with hybrid options.

Qualifications

• Proven history of building OpenShift on-premises (OCP) deployments.
• Hands-on capability to implement and troubleshoot OpenShift architectures.
• Experience onboarding applications onto OCP with platform engineering teams.
• Deep networking and tooling expertise for enterprise OpenShift environments.

Responsibilities

• Lead end-to-end technical delivery from concept to implementation of on-prem OpenShift clusters.
• Deploy and validate greenfield OCP deployments across client environments.
• Architect onboarding patterns, developer workflows, and migration strategies for applications.
• Architect enterprise container networking: OVN-Kubernetes, UDN, Multus, NMState, MetalLB/BGP, Istio.
• Implement GitOps with Argo CD/OpenShift GitOps for cluster provisioning and config management.
• Design and migrate workloads with OpenShift Virtualization (OVE) where applicable.
• Integrate infrastructure with storage, datacenter hardware, and security baselines.
• Lead architecture workshops and clearly communicate trade-offs to clients.

Skills

OpenShift

OCP

GitOps

Argo CD

Istio Service Mesh

Networking (OVN-Kubernetes)

Multus CNI

MetalLB / BGP

OpenShift Virtualization

VM Migration (OVA/VMware)

Tools

Argo CD

Terraform

Ansible

KVM/VMware vSphere

Job description

Dublin 18, Ireland | Posted on 10/07/2026

Location: On-site (Ireland [preferred], UK, EU) / Hybrid (twice a week D18)

Start date: 2 nd week of November 2026

Role Overview

Weare seeking an expert OpenShift Architect to lead the technical design,build, and implementation of our on-premises Red Hat OpenShift ContainerPlatform (OCP) infrastructure. In this end-to-end technical role, you will takefull ownership of the platform lifecycle - facilitating design workshops,building GitOps-driven architectures, driving application onboarding, andexecuting greenfield deployments from scratch in a highly regulatedenvironment.

Key Responsibilities

• End-to-End Execution: Driveall technical deliverables across the full project lifecycle, from initialconcept and High-Level Design (HLD) / Low-Level Design (LLD) to hands-on buildand infrastructure implementation.


• Greenfield OCP Deployment: Deploy, configure, and validate on-premises Red Hat OpenShift ContainerPlatform clusters from scratch across multiple client environments.


• Application Onboarding & TeamEngagement: Actively engage with platform engineering andapplication teams to establish onboarding patterns, developer workflows, andmigration strategies to successfully onboard applications onto the platform.


• Advanced On-Premises Container Networking: Architect and implement enterprise container networking architectures,including OVN-Kubernetes, User-Defined Networks (UDN), MultusCNI (for multi-network Pod interfaces), NMState / NNCP for host nodenetworking, MetalLB / BGP for on-prem load balancing, Ingress/Egressrouting, and Service Mesh (Istio / Red Hat OpenShift Service Mesh).


• GitOps & Continuous Delivery: Implement GitOps practices using Argo CD / OpenShift GitOps forautomated, version-controlled cluster provisioning, configuration management,and application lifecycle management.


• Virtualization & Workload Migration: Designand advise on OpenShift Virtualization (OVE) architectures, leading virtualmachine migration strategies away from legacy hypervisors (specificallyBroadcom/VMware vSphere).


• Infrastructure & Security Integration: Integrate platform architecture with enterprise storage (CSI, persistentstorage solutions), physical datacenter hardware, and strict securitybaselines.


• Design Workshops & StakeholderCommunication: Lead interactive architecture workshops, effectivelyarticulating complex technical concepts, trade-offs, and deployment strategiesto technical teams and client advisors.

Requirements

KeyQualifications

• Platform Track Record: Provenhistory of building and deploying enterprise-grade Red Hat OpenShift (OCP)on-premises from scratch for multiple client environments.


• Proven Hands-On Capability: Deepbackground in hands-on implementation and administration. You must possess thepractical, low-level technical ability to actually build, debug, and executethe exact architectures you propose.


• Application Onboarding Expertise: Mandatory hands-on experience working directly with application teams andplatform engineering groups to architect and execute application onboardingonto OCP.


• Deep Networking & Tooling Expertise: Hands-on mastery of OVN-Kubernetes, UDN, Multus, NMState, MetalLB, IstioService Mesh, and GitOps workflows powered by Argo CD.


• OpenShift Virtualization & VMMigration (Preferred): Hands-on experience with OpenShiftVirtualization (OVE) and migrating virtual machine workloads fromBroadcom/VMware environments.


• Regulated Environment Mandate: Mandatory experience operating within strictly compliant, high-securityindustries (e.g., Banking, Healthcare, Defense, or Telecoms).


• Clear Communication & Advising: Excellent verbal and written technical communication skills, with ademonstrated ability to advise client stakeholders and justify architecturaldecisions.


• Datacenter & Storage Fundamentals: Strongbackground in bare-metal datacenter infrastructure, enterprise storageintegrations, and automation (Ansible, Terraform).