 Introduction: The IBM Mainframe Renaissance The IBM mainframe is experiencing a renaissance. According to Gartner's recent report, "The State of the IBM Mainframe in 2026," the platform is demonstrating solid growth, with 2025 sales reaching a record $5.8 billion. Furthermore, there has been a 52% year-over-year increase in client inquiries regarding mainframe integration and modernization. Organizations are shifting their mainframes from being retirement candidates to serving as strategic pillars within their hybrid IT estates However, this resurgence brings a critical challenge to the forefront. Despite the technological advancements and sustained investments, the shortage of mainframe skills remains the primary challenge for both customers and vendors. The Core of the Mainframe Talent Crisis Why is it so difficult to find and retain new mainframe talent? The Gartner report clearly states that the greatest threat to the current IBM mainframe growth trajectory is the lack of broad system access for students and hobbyists to develop systems engineering skills. Unlike cloud or distributed systems, where aspiring developers can easily spin up environments to learn and experiment, the mainframe has historically retained a high barrier to entry. But access is only half the battle. The other half is the Developer Experience (DevEx). When new graduates or junior developers join an enterprise IT team, they expect modern, intuitive, and integrated toolchains. Forcing a new generation of developers to rely exclusively on legacy interfaces like the classic "green screen" creates friction, steepens the learning curve, and ultimately slows down productivity. Meeting Developers Where They Are The good news is that the mainframe community is evolving. Online mainframe communities are expanding, with an increasing engagement from a growing cohort of younger enthusiasts. To harness this new wave of talent, we need to meet them where they already are: in modern Integrated Development Environments (IDEs). This is exactly why modernizing the DevEx is no longer optional—it is a strategic necessity. By integrating powerful mainframe debugging and analysis capabilities directly into the tools developers use every day, we completely change the onboarding dynamic. The Power of VS Code Integration Consider the workflow for analyzing and resolving complex application failures. Traditionally, this required deep, specialized knowledge of platform-specific navigation. Today, through modern extensions, we are bringing the full analytical power of IBM Fault Analyzer directly into environments like Visual Studio Code (VS Code). Key Operational Benefits of VS Code Integration:
Future-Proofing the Platform Organizations are prioritizing the remediation of platform underinvestment to make their mainframe estates future-proof for the next decade. Investing in Developer Experience is a crucial part of that remediation. Modern mainframe solutions must not only deliver performance and reliability but also provide developers with familiar, intuitive tools that accelerate learning and simplify day-to-day development. By embracing tools that seamlessly bridge the gap between robust legacy systems and modern development environments, we are not just solving a technical problem—we are actively solving the talent shortage. When we empower the next generation with the right tools, the mainframe doesn't just survive; it thrives.  Ilaria Rispoli, Senior Software Engineer
Ilaria is part of the Verification team at HCLSoftware, contributing to the quality of IBM Fault Analyzer/HCL Z Abend Investigator in Mainframe portfolio. Drawing from her background in Client Advocacy, she brings the customer's voice directly into the system engineering.
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