Senior Security Engineer: AI-Driven Cloud Security

Arch Insurance Group Inc.; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Medical plans

Dental & Vision

401k with matching

PTO 20 days/year

Holidays 12 days/year

Job summary

Arch Insurance Group Inc. is seeking a Senior Security Engineer to protect enterprise systems, data, and cloud environments from evolving cyber threats.

You will design AI-driven security workflows, tune detection logic across SIEM/EDR/XDR, and mentor junior engineers while advancing automation and secure software practices. The role is remote anywhere in the US (Arch office preferred) and offers exposure to AWS/Azure/GCP, production AI/LLM workloads, and high-impact enterprise challenges within

Qualifications

• 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.

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

Cybersecurity experience

Security engineering

Threat hunting

Python scripting

REST APIs

Git/CI/CD

Cloud security

Education

Bachelor's degree in Computer Science or Cybersecurity

Tools

SIEM/EDR/XDR

SOAR

Python

Powershell

REST APIs

Git

CI/CD

AWS

Azure

GCP

Job description

Arch Insurance Group Inc. is seeking a Senior Security Engineer to protect enterprise systems, data, and cloud environments from evolving cyber threats.

You will design AI-driven security workflows, tune detection logic across SIEM/EDR/XDR, and mentor junior engineers while advancing automation and secure software practices. The role is remote anywhere in the US (Arch office preferred) and offers exposure to AWS/Azure/GCP, production AI/LLM workloads, and high-impact enterprise challenges within