Platform Engineer

Department: IT & Business Systems

Employment Type: Permanent

Location: Remote, UK

The Platform Engineer is responsible for acting as a hands-on engineer within the team that operates and maintains Nasstar's shared cloud platform across two sites. The role combines technical delivery, disciplined operations and continual skills development across physical infrastructure, storage, Proxmox virtualisation, Windows and Linux guest operating systems, Kubernetes, backup, SAN replication and platform disaster recovery. Because the platform hosts network control-plane components, the role operates within Nasstar’s Telecommunications Security Act (TSA) control framework and is responsible, at the appropriate level, for implementing, operating and evidencing allocated platform controls.

The Platform Engineer helps to ensure that the platform remains secure, resilient, supportable and appropriately governed. They deliver assigned operational and engineering work, participate in incident response and complex changes under appropriate leadership, and contribute evidence and improvement ideas to senior engineers and the Team Lead.

• Operate as part of a cross-skilled team covering platform, storage, Windows, Linux and Kubernetes disciplines.
• Seek and act on technical review, share knowledge with colleagues and support objectives set by the Team Lead.
• Build sufficient cross-skilling and documentation to reduce key-person dependency while retaining named technical authorities for specialist areas.
• Manage assigned work effectively, participate in skills development and on-call coverage, and escalat capacity or capability risks.
• Promote a culture of ownership, learning, constructive challenge, automation and blameless problem investigation.
• Perform assigned incident, service-request, change, problem, patching, backup, capacity and lifecycle-management activities to approved standards, escalating risks, failures and authority decisions promptly.
• Deliver work against agreed priorities, balancing reactive support, planned maintenance, risk reduction and improvement work.
• Maintain actionable monitoring, operational runbooks, support procedures, configuration records and service reporting.
• Support effective on-call and specialist-escalation arrangements, and review avoidable out-of-hours demand.
• Maintain clear service boundaries, including managed OS, application-owner-managed OS and Kubernetes workload responsibilities.
• Implement and contribute to platform changes, maintenance plans, upgrades and operational standards.
• Maintain supported platform patterns, golden images, configuration standards and automation approaches.
• Perform, within delegated authority, the controlled assessment, testing, scheduling, deployment, validation and rollback of firmware, Proxmox, storage, management tooling, supported operating systems, standard agents and Kubernetes components; record results, contribute compliance evidence and elevate failures or exceptions.
• Perform structured troubleshooting and contribute to root-cause analysis across the infrastructure and operating-system stack.
• Monitor and report capacity, performance, availability and resilience risks; perform approved remediation and ...
• Raise and support supplier cases and technical escalation for Proxmox, HPE, Net App and other platform products.
• Operate and assure platform and OS hardening, vulnerability remediation, privileged access, segregation, logging and other security controls in accordance with approved standards and the allocated TSA control set.
• Maintain auditable evidence for allocated TSA controls, support assurance and security testing, remediate technical findings and elevate suspected control failures or security…