> Markdown version of [/jobs/ext/3956493-mainframe-technical-lead](https://www.wearedevelopers.com/jobs/ext/3956493-mainframe-technical-lead). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Mainframe Technical Lead

- **Company:** TekFortune INC
- **Location:** San Antonio, TX, United States
- **Experience:** Expert
- **Salary:** $126,880.0
- **Contract:** Permanent contract
- **Skills:** Customer Information Control System (CICS), CLIST, Databases, IBM DB2, Disaster Recovery, IBM Parallel Sysplex, Monitoring of Systems, Job Control Language (JCL), Rexx (Programming Language), Tivoli Management Framework, Job Entry Subsystem 2/3, Mainframes, Automation of Marketing, MVS (OS), Performance Tuning, IBM Resource Access Control Facility, Ansible, Subsystems, Z/OS, Transaction Processing (Computing), System Availability, Omegamon, AIOps, Sql Tuning, Control M
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/mainframe-technical-lead-san-antonio-tx--11d6abe1-9a9e-41d3-bc28-64ed8f45693f

## About the Role

Mainframe Computer, Technical Leadership, IBM CICS (Customer Information Control System), Mainframe Computer, RACF (Resource Access Control Facility), IBM DB2, IBM z-OS Operating System, Team Building, Technical Leadership, Team Lead/Manager, * Expert knowledge of z/OS, MVS, JES2/JES3, Parallel Sysplex, GDPS, WLM, Catalog Management, PARMLIB, PROCLIB, USS, HMC, LPAR, IPL, Standalone Dumps, SMP/E, and RSU maintenance.

 * Strong experience with RACF, JCL, REXX, CLIST, Assembler Exits, Control-M, Connect:Direct (NDM), z/OS Connect, and ISV product administration.
 * Strong knowledge of CICS administration, including CEMT, CEDA, transaction processing, subsystem connectivity, high availability, and performance management.
 * Deep understanding of DB2 for z/OS, including subsystem administration, utilities, RUNSTATS, REORG, backup/recovery, disaster recovery, SQL tuning, locking, buffer pools, security, and capacity management.
 * Experience with RMF, SMF, performance analysis, capacity planning, workload optimization, and availability management.
 * Experience supporting and maintaining enterprise monitoring and automation platforms such as NetView, System Automation (SA z/OS), BMC MainView, OMEGAMON, and Ansible.

Qualifications & Soft Skills

 * 10+ years of Mainframe infrastructure experience with proven technical leadership experience.
 * Strong customer-facing communication and stakeholder management skills.
 * Experience supporting large-scale 24x7 production environments.
 * Strong documentation, governance, audit, and operational process management skills.
 * Ability to lead critical incidents, manage escalations, and handle high-pressure situations.
 * Strong mentoring, coaching, and team development capabilities.

Preferred

 * IBM z/OS and DB2 certifications.
 * ITIL certification.
 * Experience with Mainframe Automation, AIOps, Observability, Performance & Capacity Management, and Mainframe modernization initiatives.

## Description

Seeking an experienced Mainframe Technical Lead (L3) to lead and manage a team supporting enterprise z/OS infrastructure and Mainframe DB2 environments. Responsible for platform availability, performance, security, modernization, incident resolution, and operational excellence across z/OS, CICS, DB2, Storage, RACF, and supporting subsystem technologies. The role combines hands-on technical leadership, customer engagement, team development, and governance for 24x7 mission-critical environments.
Key Responsibilities

 * Lead and mentor Mainframe Systems Programmers and DB2 Administrators across onsite, offshore, and nearshore teams.
 * Provide L3 support for complex z/OS, CICS, DB2, JES, RACF, USS, storage, and subsystem-related issues.
 * Manage installation, configuration, migration, customization, maintenance, and upgrades of z/OS and ISV products.
 * Drive incident, problem, change, capacity, availability, and performance management activities.
 * Perform RCA, implement preventive actions, and ensure compliance with SLA and operational commitments.
 * Lead IPL activities, maintenance deployments (RSU/SMP-E), software refreshes, hardware upgrades, and disaster recovery testing.
 * Define operational procedures, automation strategies, backup/recovery plans, and governance standards.
 * Oversee Mainframe DB2 administration including subsystem management, utilities, backup/recovery, performance tuning, security, capacity planning, migrations, and database availability.
 * Partner with application teams on DB2 performance optimization, SQL tuning, and database best practices.
 * Drive automation initiatives using REXX, JCL, z/OSMF, Ansible, and monitoring tools to improve operational efficiency.
 * Identify skill gaps, develop training plans, and ensure continuous capability improvement within the team.