Senior Security Content Engineer

Position: Senior Security Content Engineer Reports To: Manager, Content Engineering Department: Threat Fusion Cell Location: Remote, US Work Authorization: US Citizenship Required BlueVoyant is seeking a Senior Security Content Engineer to join our fast-paced team in the Threat Fusion Cell, focused on building automated security analysis solutions. This fully remote role involves developing detection logic, automation, and visualizations to help clients derive actionable security insights at an expert level. You'll work closely with internal teams and customers to enhance security operations through innovative content engineering.

• Enrich security signals to improve SOC efficiency and outcomes.
• Research threat actors and attack vectors to develop detection content for emerging threats and improve our detection posture.
• Design and build automation content for onboarding new products.
• Design and build complex detection analytic rules, improving our global detection capabilities.
• Assist clients in testing and tuning detection logic to reduce false positives and alert fatigue.
• Perform expert-level global tuning for complex alerts.
• Identify and promote reusable content, including rules, automations, and dashboards, across clients.
• Lead integration initiatives to optimize log ingestion and reduce noise. Deliver research-driven content such as queries, signatures, rules, and knowledge base articles.
• Develop supplemental detection coverage for high-risk vulnerabilities and exploits.
• Develop security policies, procedures, and automation frameworks.
• Communicate regularly with client IT teams to provide guidance and ensure operational readiness.
• Support the development of incident response processes and documentation.
• Advance security standard operating procedures and incident response reporting.
• Mentor developing team members.
• Strong collaboration and interpersonal skills, especially in distributed team environments.
• Excellent written and verbal communication skills, with the ability to explain complex topics clearly.
• Expert experience writing detection signatures or algorithms.
• Expert-level proficiency in analyzing event logs and identifying indicators of compromise.
• Hands-on experience with Microsoft Azure, Sentinel, Defender, and related tools.
• Deep experience with: Sentinel Incidents, Workbooks, Hunting Queries, and Notebooks Kusto Query Language (KQL) or similar Complex JSON data structures Development tools, including Git, IDEs, and CI/CD pipelines