Lead Info Sec Ops Specialist - IAM Unix Specialist

TIAA; West Chicago (IL); On-site; USD 108,000 - 130,000; Full time

Job summary

TIAA is seeking a Lead Information Security Specialist to safeguard enterprise Unix/Linux and Mainframe systems through privileged access management, sudo administration, and RACF. You will design IAM solutions, conduct audits for SOX/GLBA, develop automated scripts, and mentor the team while documenting policies.

Key responsibilities include administering PAM infrastructure, bridging BoKS with IAM, and conducting audits to ensure regulatory compliance across platforms.

Qualifications

• 5+ years of information technology and/or cybersecurity experience.
• 3+ years of Unix/Linux experience.
• Experience with scripting (Bash, KSH, Python, Perl).

Responsibilities

• Design and maintain sudo access control policies across enterprise Unix/Linux environments.
• Administer and optimize Unix privilege access management infrastructure.
• Manage Mainframe RACF environment including user management and dataset permissions.
• Conduct Unix and RACF security audits for SOX/GLBA/PCI-DSS compliance.
• Develop automated security scripts to streamline reviews and reporting.
• Bridge BoKS/sudo controls with enterprise IAM solutions.
• Identify and remediate access control gaps through reviews and risk assessments.
• Mentor team members and document sudo policies and configurations.

Skills

Unix/Linux

RACF administration

Privileged access management

Sudo administration

BoKS ServerControl

Python scripting

Perl scripting

Education

University degree preferred

Tools

BoKS ServerControl

BeyondTrust EPM

Job description

We are seeking a Lead Information Security Specialist to safeguard critical enterprise Unix/Linux/Mainframe systems through specialized expertise in privileged access management, sudo administration, and RACF administration. This role designs and maintains complex IAM access control solutions, conducts security audits for regulatory compliance (SOX, GLBA), develops automated security scripts, bridges Unix and RACF privileged access controls with enterprise IAM solutions, and preserves institutional knowledge through documentation and mentorship. The position requires expertise in Unix/Linux system fundamentals, sudo policy management, Unix privileged access management administration, and modern security framework implementation.

Key Responsibilities

• Design and maintain sudo access control policies across enterprise Unix/Linux environments, including sudoers file management, command restrictions, and privilege escalation controls to enforce least-privilege access principles.
• Administer and optimize Unix privilege access management solution infrastructure, including centralized authentication policies, access rules, host groups, and privileged session management across the Unix/Linux server fleet.
• Manage Mainframe RACF environment including user management, Dataset permissions, batch job maintenance, general resource profile management.
• Conduct specialized Unix and RACF security audits to ensure compliance with financial industry regulations (SOX, GLBA, PCI-DSS) and collaborate with internal/external auditors to demonstrate control effectiveness.
• Develop automated security scripts and tools using shell scripting, Python, and Perl to streamline access reviews, policy enforcement, and compliance reporting across Unix environments.
• Serve as technical bridge between BoKS/sudo privileged access controls and enterprise IAM solutions, designing integration strategies that align with overall cybersecurity architecture.
• Identify, assess, and remediate access control gaps including sudo misconfigurations, privilege escalation risks, and BoKS policy gaps, through regular access reviews and risk assessments.
• Provide expert guidance and mentorship to team members on Unix access control concepts, while maintaining comprehensive documentation of sudo policies, BoKS configurations, and security procedures.

Educational Requirements

• University (Degree) Preferred

Work Experience

• 5+ Years Required; 7+ Years Preferred

Physical Requirements

• Physical Requirements: Sedentary Work

Career Level

8IC

Required Skills

• 5+ years of experience in information technology and/or Cybersecurity
• 3+ years of Unix/Linux
• Experience with scripting (Ex. Bash, KSH, Python, Perl)

Preferred Qualifications

• RACF administration experience
• Strong hands-on experience with BoKS ServerControl (or similar centralized Unix access control solutions) - Privileged Access Management (Ex. BeyondTrust EPM)
• Experience in a containerized environment

Related Skills

Accountability, Adaptability, Business Continuity Planning, Cloud Computing Security, Collaboration, Communication, Compliance, Consultative Communication, Cybersecurity, Detail-Oriented, General Risk Management, Network Security, Prioritizes Effectively

Anticipated Posting End Date

2026-10-19

Base Pay Range

$108,000/yr - $130,000/yr

Actual base salary may vary based upon, but not limited to, relevant experience, time in role, base salary of internal peers, prior performance, business sector, and geographic location. In addition to base salary, the competitive compensation package may include, depending on the role, participation in an incentive program linked to performance (for example, annual discretionary incentive programs, non-annual sales incentive plans, or other non-annual incentive plans).

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Company Overview

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Preferred Qualifications

• RACF administration experience
• Strong hands-on experience with BoKS ServerControl (or similar centralized Unix access control solutions) - Privileged Access Management (Ex. BeyondTrust EPM)
• Experience in a containerized environment