Security Engineer

We are seeking a Senior Security Engineer to protect enterprise systems, data, and cloud environments from evolving cyber threats. This role focuses on advanced security engineering, threat detection, and AI-driven security capabilities. You will serve as a senior technical resource, leading complex investigations and improving detection and response through automation and AI., * 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 Google Cloud Platform), 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.

Required

• 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 Google Cloud Platform).

• 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.

Preferred

• 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 GCIAIH, or cloud security certifications).

• Master’s degree in Computer Science, Cybersecurity, IT Management with an emphasis on AI/Automation.

Arch is committed to helping employees succeed through our comprehensive benefits package that includes 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; and more. Click here to learn more on available benefits.