• Maintain Bullhorn's standard SLA for infrastructure and system uptime at 99.95%+ • Serve as an escalation point for hardware failure and infrastructure incidents, resolving complex issues beyond L1 scope • Develop repeatable diagnostic approaches for the team. • Manage critical production incidents independently, coordinating cross-functional response. • Oversee datacenter inventory strategy and spares depot management. • Ensure datacenter facilities are maintained to a high standard. • Administer Linux (RHEL/CentOS, Debian) and Windows Server environments. • Manage enterprise SAN and NAS platforms (iSCSI, FCP, CIFS, NFS). • Administer server hardware platforms, chassis management systems, and hypervisor environments. • Independently lead infrastructure maintenances to maintain uptime SLA's inline with change management. • Maintain Infrastructure Asset Management systems. • Apply monitoring and observability tooling to maintain unified visibility. • Independently lead medium-to-large datacenter infrastructure projects from scoping through delivery. • Maintain vendor relationships for enterprise hardware and services. • Produce high-quality technical documentation.

• Work closely with hardware, development teams to profile and analyse GPU performance at the system and kernel level. • Evaluate and compare GPU performance across different platforms, architectures, and software stacks (e.g.,CUDA, ROCm). • Debug and optimise ML workloads to run efficiently on GPU hardware, identifying and resolving performance bottlenecks. • Perform acceptance testing for new GPU clusters, ensuring hardware and software meet performance, stability, and compatibility requirements for AI workloads. • Perform experiments across diverse GPU system configurations to assess the impact of varying interconnect strategies and system-level optimisations on performance and scalability. • Develop tools and dashboards to visualise performance metrics, bottlenecks, and trends. • Contribute to internal tooling, frameworks, and best practices

• Support and maintain Azure cloud infrastructure, including virtual machines, networking, backups, monitoring, and access-related services • Administer Windows and Linux servers • Deploy and configure cloud resources • Troubleshoot infrastructure and application issues • Support monitoring, backup, patching, and lifecycle activities • Participate in migrations and infrastructure improvement initiatives • Contribute to automation activities using scripting and standard tools • Create and maintain technical documentation, SOPs, and runbooks • Support incident, problem, and change management processes

• Access Management: Provision and manage user access, accounts, and permissions across public and private cloud infrastructure • Operations: Triage and resolve day-to-day infrastructure issues, escalating to senior engineers when appropriate • Deploy and configure infrastructure resources such as virtual machines, app services, containers, storage, and virtual networks • Create and maintain documentation including runbooks, standard operating procedures, and knowledge base articles • Systems Administration & Scripting: Administer and troubleshoot Linux and Windows-based systems across public and private cloud environments • Assist with patching, hardening, and basic performance tuning activities • Write and maintain scripts (PowerShell, Bash, Python) to support routine operational tasks • Support basic monitoring and alerting, escalating issues as needed • Growth Opportunities: Gain exposure to Infrastructure as Code (IaC) development and CI/CD pipeline improvements • Engage in incident response and root cause analysis • Take on security analysis and engineering initiatives • Assist with infrastructure security and compliance efforts aligned to organizational requirements • Shape infrastructure design decisions and identify opportunities to automate operational workflows • Drive progress toward SOC 2 and regulatory compliance objectives