Desarrollador/a IT

MAINFRAME DEVELOPER

The Mainframe Developer serves as a senior technical expert responsible for designing, developing, optimizing, and maintaining highly complex mainframe and legacy applications. This role requires deep experience in COBOL, CICS, JCL, and AS/400 (RPG IV), as well as strong problem‑solving skills and the ability to lead technical initiatives. The ideal candidate demonstrates strategic thinking, technical leadership, and a strong commitment to delivering high‑quality solutions that support business growth and operational excellence.

Design, develop, test, and maintain highly complex applications on IBM mainframe platforms using COBOL, CICS, JCL, DB2 , and SPUFI .

Analyze business requirements and create robust technical solutions using RPG IV, ILE RPG, and CL on the IBM AS400 platform.

Act as a senior technical resource and escalation point for complex design issues, performance challenges, and integration needs.

Lead and participate in code reviews to ensure high standards of quality, security, and maintainability.

Mentor junior developers and provide architectural guidance to programming teams.

Conduct in‑depth analysis of system performance and resolve complex production issues.

Utilize tools including IBM z/OS , MQ , and performance‑monitoring utilities.

Optimize legacy applications and SQL queries, including stored procedures and scripts (DB2 and Microsoft SQL Server).

Drive modernization efforts, including API‑based integrations and cloud‑enabled transformation initiatives.

Advanced English proficiency (written and verbal).

• 10+ years of mainframe development experience , with strong expertise in COBOL, CICS, JCL , and DB2.
• 4+ years of hands‑on experience with RPG IV, ILE RPG, and CL on AS/400 .
• Deep experience in commercial insurance , particularly in underwriting, rating, pricing, and policy administration systems.
• Extensive SQL experience with stored procedures, scripts, and query optimization.
• Experience with Microsoft SQL Server, SSRS, Microsoft Visual Studio, and .NET tools .
• Demonstrated ability to lead technical projects and guide development teams.
• Experience with mainframe modernization tools such as Micro Focus Enterprise Server or IBM z/OS Connect.

NET.

Experience working in Agile environments and CI/CD practices.

Knowledge of integration approaches for legacy systems within cloud or hybrid architectures.

Expert‑level proficiency in COBOL, CICS, JCL, DB2, SPUFI , and AS/400 development ( RPG IV, ILE RPG, CL ).

Strong understanding of system performance tuning and debugging.

At Zurich millions of individuals and businesses place their trust in our products and services every day. It’s a big challenge, but you will be supported by a world‑class team who believe in helping you to reach your full potential and deliver on our promises.

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