Senior Mainframe Developer

Bridgency HR Management

full-time

Posted on: 10/19/2025

Location Type: Remote

Location: Remote • 🇩🇪 Germany

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Senior

SQL

About the role

Analyze functional requirements and develop implementation concepts
Develop, maintain and enhance COBOL applications on IBM z/OS (batch & online)
Database design and access (DB2, VSAM, sequential data sets)
Execute tests (system, integration, regression) and ensure quality assurance (code reviews, refactoring, pair programming)
Create and maintain documentation (user, operations, and maintenance manuals)
Support rollouts, operation, and maintenance of test and production systems
Knowledge transfer and coaching of internal staff
Participate in projects within the tax-related context

Degree in Computer Science, Information Technology or equivalent vocational training (e.g., IT specialist in application development)
Several years of experience developing COBOL on IBM z/OS
Solid knowledge of COBOL (including CICS, BMS screens, XML, REST/JSON), JCL, TSO/ISPF, Rational Developer for z/OS, database development (DB2, SQL), and batch and online/transactional programming
Experience in software design, requirements analysis and documentation
Basic knowledge of V-Model XT and common software development methodologies
Ideally project experience in regulated/public sector environments or related industries such as banking or insurance
Fluent German (at least C1) and basic English (at least A2) spoken and written
Analytical thinking, team player and independent working style

Benefits

Exciting and challenging tasks in a major digitalization project
A motivated and professional team in a dynamic work environment
The opportunity to actively contribute to the development of innovative solutions
Attractive compensation and benefits, as well as development opportunities aligned with your performance and experience
Top Company 2025 – because our employees matter to us
Home office/remote work and autonomous working provide you with maximum flexibility in daily life
A permanent full-time position providing job security
Professional equipment/modern technical setup to simplify your daily work
Regular team events to foster cohesion and provide variety

Tip: use these terms in your resume and cover letter to boost ATS matches.

COBOLIBM z/OSDB2VSAMJCLTSO/ISPFRational Developer for z/OSXMLRESTSQL

analytical thinkingteam playerindependent working styleknowledge transfercoaching

degree in Computer Sciencevocational training in IT