Note: The job is a remote job and is open to candidates in USA. Arch Capital Group Ltd. is a company that promotes progress and inspires clients and communities to achieve their potential. They are seeking a Senior Security Engineer to protect enterprise systems and cloud environments from cyber threats, focusing on advanced security engineering and AI-driven capabilities.
Responsibilities
- 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
Skills
- 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
- A 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 Offer
- Basic Life and AD&D Insurance as well as Short and Long-Term Disability
- Paid Parental Leave of up to 10 weeks
- Student Loan Assistance and Tuition Reimbursement
- Backup Child and Elder Care
Company Overview