Arch Capital Group Ltd.

Arch Capital Group Ltd. is self-described as a global leader in insurance, reinsurance, and mortgage insurance solutions. The company leverages its unique under

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

Location

Florida + 2 moreAll locations: Florida | North Carolina | South Carolina

Posted

15 days ago

Salary

0

Seniority

Senior

Job Description

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

Arch Capital Group Ltd.

• 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.

Job 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

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