Sr Subject Matter Expert(Tools&Automation)

Technology, Data & Digital · IT Infrastructure & Security · Cybersecurity · DevOps

In short

HCLTech is looking for an experienced L3 Mainframe Security Engineer (z/OS) in Bangalore, India, to secure enterprise-scale environments. The role involves designing, implementing, and maintaining security controls, acting as an escalation point, and driving automation for security administration.

Responsibilities

Design, implement, and maintain z/OS security controls using RACF/ACF2/Top Secret.
Act as L3 escalation for mainframe security incidents, access issues, and policy violations.
Lead security hardening, access governance, and privileged access management.
Monitor and analyze security events using IBM zSecure and enterprise SIEM tools.
Support audits and compliance activities (SOX, PCI-DSS, ISO 27001).
Manage certificates, encryption, and cryptographic services (ICSF/TKE, TLS, AT-TLS).
Drive automation for security administration and reporting (Rexx/JCL/USS).
Collaborate with application, IAM, and infrastructure teams.

Requirements

8+ years of IT experience with 5+ years in z/OS security.
Strong hands-on experience with RACF/ACF2 / Top Secret).
Experience with IBM zSecure Admin/Audit/Alert.
Deep understanding of SAF, SMF.
Knowledge of mainframe cryptography, certificates, and encryption.
Strong troubleshooting, incident response, and communication skills.
Automate with REXX/JCL.
Maintain runbooks and standards.

Desired Qualifications

IBM MFA for z/OS, PAM integrations
Experience with SIEM tools (QRadar, Splunk)
Knowledge of Db2, CICS, IMS security
Rexx / Python automation skills

Benefits

Global technology company with over 223,000 employees across 60 countries.
Industry-leading capabilities centered around digital, engineering, cloud and AI.
Work with clients across all major verticals including Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services.
Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.

Skills

z/OSRACFACF2Top SecretIBM zSecureSIEMSOXPCI-DSSISO 27001ICSFTKETLSAT-TLSRexxJCLUSSSAFSMFPythonQRadarSplunkDb2CICSIMSIBM MFA

#mainframe#security#z/OS#RACF#ACF2#Top Secret#IBM zSecure#SIEM#encryption#automation#compliance#audits#Rexx#JCL#Python

About HCLTech

Supercharging progress through technology and innovation

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered around digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2022 totaled $12.1 billion. To learn how we can supercharge progress for…

See all open jobs at HCLTech Read more about HCLTech Website