Senior Mainframe CICS Systems Programmer

ADP•San Dimas, CA

3d•Hybrid

About The Position

ADP is seeking a senior systems engineer for its Infrastructure Engineering team to lead the installation, implementation, administration, support, and strategic direction of its IBM CICS Transaction Server (CICS/TS) environment. The role supports mission-critical enterprise applications and focuses on platform stability, performance, resiliency, security, and modernization across large-scale IBM z/OS environments. The engineer partners with development, operations, architecture, infrastructure teams, and internal and external clients on initiatives, upgrades, production implementations, and CICS-based solutions. The role includes technical leadership during incidents and outages, mentoring junior developers, supporting Java workloads in CICS and Liberty Profile, and participating in a global on-call rotation for a highly available 24x7 platform. The position is hybrid, with onsite work three days per week, and is based in Roseland, New Jersey (preferred), Alpharetta, Georgia, or San Dimas, California.

Requirements

13+ years of hands-on experience supporting IBM CICS/TS in large-scale IBM z/OS environments.
Deep expertise in IBM CICS Transaction Server administration and support.
Strong working knowledge of IBM Assembler and COBOL.
Experience installing, upgrading, maintaining, and supporting mainframe software products.
Advanced troubleshooting, problem determination, and root-cause analysis skills.
Experience supporting high-availability enterprise production environments.
Ability to lead technical initiatives and collaborate across multiple teams.
Strong verbal and written communication skills.
Bachelor's degree in Computer Science, Information Technology, Management Information Systems, or equivalent combination of education and experience; the posting also states a bachelor's degree or equivalent.
Ability to successfully complete required government background checks and obtain necessary clearances.
Ability to participate in a global on-call rotation supporting a 24x7 platform.

Nice To Haves

Experience with CICSPlex System Manager (CPSM).
Experience using CICS Explorer.
Knowledge of Java workloads within CICS and Liberty Profile environments.
Experience with IBM MQ.
Experience with z/OS Connect Enterprise Edition.
Familiarity with enterprise automation and operational tooling.
Experience supporting disaster recovery and business continuity programs.

Responsibilities

Lead installation, configuration, maintenance, and support of large-scale IBM CICS/TS environments.
Ensure availability, performance, integrity, and security of mission-critical CICS platforms.
Collaborate with development, operations, and infrastructure teams on initiatives, upgrades, and production implementations.
Administer and optimize CICSPlex environments and use CICS Explorer for systems management.
Perform advanced performance tuning and capacity management to maintain service-level objectives.
Develop and maintain CICS standards, best practices, and technology roadmaps.
Support disaster recovery planning, testing, and execution.
Analyze system dumps, storage violations, and performance issues to identify and resolve root causes.
Automate operational procedures, including IPLs, CICS cold starts, recovery processing, and dump management.
Provide technical leadership during production incidents and critical system outages.
Work with internal and external clients to design and implement CICS-based solutions.
Support Java workloads running in CICS, including Liberty Profile environments.
Participate in a global on-call rotation supporting a highly available 24x7 enterprise platform.
Evaluate and support IBM and third-party software products that enhance the mainframe ecosystem.
Present work during sprint demos and communicate milestone achievements to stakeholders and senior leaders.
Mentor junior developers and collaborate with teams across departments and locations.