We transform, operate, and secure the critical transactional core of the region’s leading financial institutions and corporations. We offer a comprehensive ecosystem that includes AI-driven modernization, expertise in IBM Assembler/HLASM, database management, networking, storage, and 24/7 rotating on-call support with our own zPDT labs.
Mainframe Specialization
IBM z/OS Labs
P1/P2 Critical Care
MIPS Tuning & Savings
Recovery and reverse engineering of lost business logic in COBOL or Assembler programs to reintegrate them into active version control.
Strategic recompilation to take advantage of the IBM z16/z17 hardware architecture and reduce recurring MIPS and MSU consumption.
Replacement of custom-built sockets with native RESTful architectures aligned with modern integration standards.
End-to-end visibility into software dependencies to mitigate risks in deployments and audits.
Installation, migration, and optimization of system software to meet business SLAs.
Comprehensive technical management of high-volume transactional engines.
Specialized support for large-scale CICS architectures across multiple LPARs.
Administration of the z/OS Communication Server to ensure secure and uninterrupted connectivity.
Support for multi-vendor storage subsystems focused on data protection and continuity.
Implementation of strict access policies and compliance audits for financial environments.
It is a large-scale, highly reliable computer with extremely high processing capacity, designed to handle massive volumes of critical transactions. IBM markets it under the Z platform (z16/z17 hardware). Large companies—especially banks—use it as the core of their global financial systems due to its uninterrupted availability, regulatory compliance (DORA, ECB, BCRA), and the use of Telum (z16, NNPA instruction) and Telum II (z17) processors with on-chip AI acceleration for deep learning inferences in nanoseconds.
Yes, G&L Group is an IBM Gold Partner and has the formal channels and required licensing to deploy key technology tools, ranging from software and hardware development to support and training.
It offers recovery of orphaned source code through reverse engineering and AI (watsonx), optimization and migration to COBOL v6.x to reduce MIPS/MSUs on z16/z17, modernization of API connectivity with z/OS Connect EE (with offload to zIIP), and live maps of transactional dependencies with IBM ADDI. It also supports IBM Assembler, COBOL, REXX, PL/1, and Adabas/Natural.
It has a technical team specializing in the language closest to the hardware. It offers abend diagnostics using IPCS, updates to critical exits (CICS, SMF, RACF, VTAM), development of custom components with hardware encryption (CPACF), and tuning for z16/z17 systems with measurable CPU reduction in SMF Type 30.
It covers TCP/IP and VTAM administration, OMPROUTE (OSPF) routing, DVIPA/DDVIPA high-availability schemes in Sysplex, encryption using OpenSSH, FTPS/TLS, and IPSEC, and support for connectors such as Connect:Direct, NetView, XCOM, and Supersession.
This is a theoretical and hands-on training course conducted in our own labs using IBM zPDT technology. It allows students to practice in a real z/OS environment (System Programmer, RACF, Networking, Databases, COBOL, Assembler) without requiring access to the client’s production hardware.
Yes, as a central part of its value proposition, it offers 24/7 rotating on-call support, automated proactive monitoring, technical incident/problem management, and active participation in Disaster Recovery Planning (DRP) for DB2/IMS, CICS, Storage, SAF Security, and Networks.
Mainframes and AI at the IBM Tech Summit Argentina 2026
IBM recognized our commitment and excellence
Training Mainframe Professionals: Shaping the Future of Technology Talent
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