Senior Security Engineer

Company Overview At Motorola Solutions, we believe that everything starts with our people. We’re a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that’s critical for safer communities, safer schools, safer hospitals, safer businesses, and ultimately, safer nations. Connect with a career that matters, and help us build a safer future. Department Overview The Cyber Security Team protects Nødnett by enabling early detection of threats and vulnerabilities and supporting effective incident response. The team designs, builds, owns and operates a hardened, segmented on-prem security enclave used for security monitoring, investigation and incident response support, in close cooperation with Operations/NOC and external security partners (mnemonic) and the network owner (DSB). Job Description Own engineering and day-to-day operations of the security enclave platform for monitoring, investigation and incident response support. Design and operate security zones, trust boundaries and controlled flows (incl. DMZ patterns). Operate and harden enclave infrastructure and core services (virtualization, Linux, containers, identity/time/name services). Maintain monitoring/alerting for availability, capacity and security-relevant signals. Maintain backup/recovery with tested restores and documented procedures. Own vulnerability handling in operations: prioritisation, patch/mitigation, verification, and documentation of risk decisions and status. Ensure telemetry quality and investigation readiness: onboarding/validation, time synchronisation, normalization where feasible, and identification of coverage gaps. Support incidents with safe engineering actions (e.g., containment-support changes, enabling additional telemetry, evidence-friendly data collection) with clear documentation. Build and maintain runbooks/playbooks and automation; convert lessons learned into continuous improvements. Provide status reporting and maintain accurate documentation for traceability and operational use during incidents. Basic Requirements Education and experience: Relevant technical degree with minimum 3 years relevant experience, or minimum 5 years relevant experience with good references. Core engineering foundation (expected competence): Network operations fundamentals including routing/switching, filtering, firewall policy work and strict segmentation. Linux administration and troubleshooting in production (Ubuntu/Debian; Windows familiarity where needed for integration/monitoring). Practical storage and failure-mode understanding; capacity and reliability considerations. TLS/certificates and certificate lifecycle handling for service identity and secure communication. Identity and access management principles and lifecycle in segmented environments. Virtualization and container operations, including container networking concepts used for isolation/segmentation (e.g., macvlan patterns). Scripting and version control for repeatable operations (Bash/Python; Git-based workflows). Operational monitoring (health/performance/availability) and log/telemetry interpretation. Backup and recovery design and operations, including tested restores and offline/segmented constraints where relevant. DevOps-style practices: versioned configuration, infrastructure-as-code, controlled automation and lifecycle management. Security engineering competence (expected competence): Secure architecture with zones, trust boundaries and least-privilege flows. Hardening and secure configuration baselines; verification and drift awareness. Vulnerability management under time pressure (patch/mitigate/contain; verify; document decisions). Reliability engineering for fault tolerance and graceful degradation. Telemetry onboarding and maintenance; visibility gap identification and improvement. Detection/detection-support engineerin ... (truncated, view full listing at source)