Senior Security Engineer: IAM, Cloud & AI Security

NISA Investment Advisors, LLC; Clayton (MO); On-site; USD 140,000 - 190,000; Full time

Job summary

NISA Investment Advisors, LLC is seeking a Senior Security Engineer to design, implement, and operate security controls across IAM, PAM, cloud, AI security, and security operations. You will partner with the Deputy CISO and IT engineering to enforce zero-trust principles and robust defense in depth.

The role requires hands-on experience with Entra ID, Okta, CyberArk, AWS, Azure, SIEM/SOAR, EDR, and IaC tooling, with a focus on incident response and governance.

Qualifications

• Bachelor's degree in computer science, cybersecurity or a related field
• 7+ years of IT or security experience, including 5+ years of hands-on security engineering
• Hands-on enterprise IAM and PAM engineering (e.g., Entra ID, Okta, CyberArk, BeyondTrust)
• Hands-on experience securing AWS and/or Azure and engineering SIEM/SOAR and EDR platforms
• Proficiency in security automation and IaC (e.g., Python, PowerShell, Terraform)
• Strong command of core security concepts across all domains (least privilege, zero trust, cryptography, network security, risk management, secure development) and frameworks such as NIST CSF, SOC 2 and MITRE ATT&CK
• Demonstrated mentorship and ability to explain technical risk to nontechnical stakeholders

Responsibilities

• Engineer and operate IAM and PAM platforms across multiple environments
• Manage cloud security guardrails and posture tooling
• Develop and tune SIEM/SOAR, EDR, and logging for detections
• Lead incident response, forensics and root-cause analysis
• Implement governance, risk and compliance controls aligned with NIST CSF and SOC 2
• Mentor junior engineers and maintain runbooks and playbooks
• Support disaster recovery testing and security awareness
• Collaborate with IT engineering and stakeholders on secure development and threat modeling

Skills

IAM engineering

Cloud security

SIEM/EDR automation

Security automation & IaC

NIST/MITRE knowledge

Mentorship

Education

Bachelor's degree in computer science, cybersecurity or related field

Tools

Entra ID

Okta

CyberArk

BeyondTrust

AWS

Azure

SIEM/SOAR

EDR

Python

PowerShell

Terraform

Job description

NISA Investment Advisors, LLC is seeking a Senior Security Engineer to design, implement, and operate security controls across IAM, PAM, cloud, AI security, and security operations. You will partner with the Deputy CISO and IT engineering to enforce zero-trust principles and robust defense in depth.

The role requires hands-on experience with Entra ID, Okta, CyberArk, AWS, Azure, SIEM/SOAR, EDR, and IaC tooling, with a focus on incident response and governance.