The Role: Head of Network Observability and Analysis Location: Sheffield, UK Position Type: Contract Inside IR35 Remote work option Available: Hybrid - 3 Days Onsite Job Description: Key responsibilities: Own the definition and delivery of the network observability and analysis approach, including scope, architecture, tooling, and roadmap Strong technical understanding of DNS, routing, certificates and exposure data, EDR signals, asset inventory) Build and improve the data layer to ingest, normalise, and reconcile telemetry and configuration state into analysable, queryable datasets Partner with analytics and data science teams to develop detection and insight use cases on top of the data Work in partnership with network engineering to address instrumentation gaps and align with authoritative sources of truth Define coverage and data quality metrics so visibility gaps are measurable and trackable Report progress, insights, and key risks to senior security and technology stakeholders Required skills and experience: Strong networking knowledge: routing, DNS, perimeter and cloud architectures, large enterprise environments Strong data engineering and analysis skills: large scale telemetry, streaming and batch pipelines, SQL and Python, modern storage and query platforms Experience building or scaling a capability in a complex organisation Comfortable working hands-on (prototype, query, script) while setting direction Experience working in regulated or high security ..... full job details .....