ONOS MARKSON

I've led day-to-day operations, workforce planning, scheduling, and service delivery for Snipershots Weddings, a photography organisation with 90+ employees.

I coordinated people, resources, competing priorities, and client requirements while supporting recruitment, onboarding, training, performance monitoring, and practical process improvements. I used operational records and reporting to help management make decisions and improve consistency.

At Yellow Hat Security Solutions / Stockton House, I lead cross-functional technical teams and coordinate project delivery, dependencies, resources, and stakeholder communication. I analyse 200+ security alerts monthly using Splunk and Microsoft Sentinel, contributing to a 25% reduction in false positives through improved detection logic and monitoring workflows.

I've built reporting and dashboards with SQL, Excel, Python, and Power BI, and automated log analysis to reduce manual analytical work by 20%. My background combines operations management with IT operations, cybersecurity, cloud security assessments, GRC, and risk assurance.