Cloud Infrastructure Architect / Engineer

The role is part of their Cloud Network Infrastructure (CNI) team responsible for delivering and supporting mission-critical infrastructure across private and hybrid cloud environments.

You will play a key role in modernising infrastructure platforms, including Kubernetes, storage, virtualisation, and directory services, ensuring high availability and operational efficiency.

The role involves both hands-on engineering and design activities, supporting ongoing transformation initiatives and BAU support of critical systems.

Key Responsibilities

Design and execute Windows Active Directory migration to new environments

Design, Implement and maintain OS patching solutions for both Linux and Windows platforms aligned with best practices

Build and configure a virtualisation environments (eg Proxmox) to migrate ISE from VMware to the new environment

support the implementation of the new Kubernetes (K8s) clusters,

Support build, integration, and operation of cloud infrastructure (private and hybrid cloud environments)

Assess and optimise existing ESXi environments, including defining and executing exit/migration strategies

Support hardware installation and infrastructure deployment activities where required

Perform level 3 troubleshooting and incident resolution across infrastructure and platform layers

Work with internal engineering and architecture teams to define and improve future platform designs

Support automation, provisioning, and orchestration for infrastructure deployments

Conduct testing and validation in lab environments for new releases, patches, and infrastructure changes

Produce technical documentation including HLD, LLD, and operational procedures (MoP/runbooks)

Participate in operational support including on-call rota if required

Kubernetes (design, deployment, operations)

Virtualisation platforms (VMware ESXi and Proxmox)

Solid experience in Linux (RHEL or equivalent) and Windows environments

Experience with storage technologies including CEPH, SAN/NAS, or enterprise storage platforms

Proven experience in Active Directory migration and management

Strong understanding of infrastructure automation and Scripting (eg Python, Shell)

Experience troubleshooting complex infrastructure issues (L3 support)

Knowledge of cloud platforms (OpenStack, AWS, Azure or similar)

Experience working in mission-critical/high availability environments

Strong understanding of networking fundamentals and infrastructure integration

Desirable Skills

Experience with:

OpenStack/Mirantis

Infrastructure APIs (REST, automation tooling)

Enterprise backup and storage systems

Exposure to hybrid cloud environments

Experience working with telecoms or highly regulated environments