COBOL Developer (Mainframe)

Quick Facts

• Role: COBOL Developer (Mainframe) in Mainframe Development (Health insurance)

• Work model: up to 60% home office; flexible working hours (6–21) with flex time account; option to work from abroad

• Teams: agile squads for the existing policy system or the benefits system

Description

You will help move health-insurance business processes into efficient IT solutions within an agile Mainframe Development chapter. The role focuses on developing, maintaining, and modernizing COBOL and Delta-COBOL applications for batch and CICS online processing, while resolving issues in production and test. You will also document solutions and contribute to continuous improvement of how the team works, including AI-related approaches.

Responsibilities

• Develop, maintain, and support COBOL programs (with Delta) in mainframe systems

• Analyze, optimize, and modernize existing functions and processes

• Convert business requirements into technical specifications with close collaboration with Business Requirements Engineers and business stakeholders

• Create and maintain technical program descriptions and documentation

• Diagnose and fix incidents and error patterns in production and test environments in a sustainable way

• Coordinate technical implementations with interface and architecture teams

• Help advance Mainframe Development working practices, including exploring AI

Requirements

• Degree in (business) computer science, mathematics, economics, insurance, or comparable qualification (e.g., IT specialist training)

• Multi-year experience as a COBOL developer for development and maintenance of COBOL/Delta-COBOL applications

• Knowledge of common mainframe technologies and tools for COBOL (batch) and CICS (online)

• Openness to new working methods and technical changes; structured, autonomous, proactive working style

• Interest in innovation and new technologies such as AI; willingness to try new approaches and contribute constructively

• Analytical mindset, structured work style, and ability to independently understand complex system contexts and solve problems solution-oriented

• Secure German communication at least C1 level

Benefits

• Up to 60% home office; flexible hours (6–21) with flex time account; option to work from abroad

• 30 vacation days plus additional days off on Christmas Eve (Heiligabend) and New Year’s Eve (Silvester); special leave

• Company restaurant, modern campus with ergonomic workplaces, café, massage studio, subsidized fitness offers, company sports, and corporate health management

• Benefits supporting work-life balance and continuous improvement of working practices