Senior Security Engineer – North Carolina, Florida, South Carolina Preferred

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🐊 Florida, North Carolina, +1 more states – Remote

🐊 Florida – Remote 🌲 North Carolina – Remote 🌴 South Carolina – Remote

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

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Arch Capital Group Ltd.

WebsiteLinkedInAll Job Openings

5001 - 10000 employees

Founded 2001

💸 Finance

🏢 Enterprise

Insurance • Finance • Enterprise

Arch Capital Group Ltd. is a global leader in providing specialty insurance, reinsurance, and mortgage insurance solutions. Arch offers risk management and risk financing services across a range of industries and operates through distinct businesses in North America, Europe, and Australia. The company is known for its innovative approach to risk, utilizing cutting-edge analysis to target and price risks effectively. Arch Capital Group's portfolio and operations reflect their commitment to sustainability and governance while continually seeking new market opportunities. Additionally, Arch Capital is recognized for its financial strength and increasing shareholder value through strategic growth and investments.

📋 Description

• Design, build, and deploy agentic AI workflows and intelligent autonomous playbooks to automate Tier-1/2 alert triage, context enrichment, and incident response. • Develop and tune complex detection logic across SIEM, EDR/XDR, and cloud platforms, focusing on behavioral analytics and anomaly detection. • Utilize Python to build custom security tools, integrate disparate security APIs, and maintain high-quality, reusable codebases for security orchestration (SOAR). • Lead threat hunting initiatives and serve as a Tier-3 escalation resource for complex, high-severity security incidents. • Analyze attacker tactics, techniques, and procedures (TTPs) to map coverage against the MITRE ATT&CK framework and proactively close gaps. • Secure cloud environments (AWS, Azure, or GCP), with a specific focus on auditing, monitoring, and protecting production AI/LLM pipelines and workloads. • Mentor junior team members, conduct code reviews for automation scripts, and promote robust software engineering best practices within the security team.

🎯 Requirements

• 7 + years of cybersecurity experience with a focus on security or detection engineering • 3 + years in a Sr. Security Engineer role • Deep technical knowledge of incident response, threat hunting, and adversary TTPs. • Experience implementing and managing detection logic across enterprise SIEM, EDR/XDR, or cloud-native security tools. • Experience securing and monitoring cloud infrastructure (AWS, Azure, or GCP). • Demonstrated experience building functional tools in Python/Powershell, interacting with REST APIs, and writing clean, structured code (experience with Git and CI/CD pipelines preferred). • Bachelor’s degree in Computer Science, Cybersecurity, or Engineering. • Practical understanding of building or implementing LLM-based agents, prompt engineering, and integrating AI models into automated workflows and custom API integrations. • Familiarity with AI/LLM-specific security vulnerabilities (e.g., OWASP Top 10 for LLMs, prompt injection, data poisoning, model evasion). • Experience with SIEM, EDR/XDR, SOAR, or identity security platforms • Advanced certifications (e.g., CISSP, GIAC GCIA/GCIH, or cloud security certifications). • Master’s degree in Computer Science, Cybersecurity, IT Management with an emphasis on AI/Automation.

🏖️ Benefits

• multiple medical plans plus dental, vision and prescription drug coverage • competitive 401k with generous matching • PTO beginning at 20 days per year • up to 12 paid company holidays per year plus 2 paid days of Volunteer Time Off • basic Life and AD&D Insurance • Short and Long-Term Disability • Paid Parental Leave of up to 10 weeks • Student Loan Assistance and Tuition Reimbursement • Backup Child and Elder Care • and more