TL
Thomas LimbĂźchler
93 Java Interview Questions You Should Prepare For
almost 6 years ago
Mainframe Developer
Linq Global Group, LLC
Columbus, OH, United States
1 day ago
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Prepare application
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Role details
Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Job source
Tech stack
Java (Programming Language)
Application Programming Interfaces (APIs)
Business Logic
Unit Testing
Customer Information Control System (CICS)
COBOL (Programming Language)
IBM DB2
DB2 SQL
JSON
Simple Object Access Protocol (SOAP)
SoapUI
Web Services
+3 more
Z/OS
Postman
ReadyAPI
Requirements
candidates with strong âz/OS Connectâ hands on experience -
Must-have (Core)
Hands-on development experience in COBOL, CICS, and DB2 for both online and batch applications, including analysis, coding, unit testing, and Migration.
Strong working knowledge of CICS application programming, including COMMAREA, CICS screens.
Experience in developing CICS web services with SOAP/REST.
Troubleshooting skills for production/test issues such as CICS abends, DB2 SQL errors, time outs etc.
Nice-to-have (Modernization / Integration)
Experience creating/exposing APIs using IBM z/OS Connect, including COBOL copybook JSON mapping and service enablement of existing business logic.
Familiar with API testing tools such as Postman/Ready API/SoapUI for request/response validation and payload troubleshooting.
Apply for this position
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Prepare application
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Good distractions
Talks and stories from around this role â technically off-topic, practically not.
Moments
Explore playlists3:47 min
Exploring JSON, CBOR, and JOSE for data serialization
Aaron Russell ¡ LIVE
3:48 min
Modernizing massive legacy mainframe and IBM i codebases
Maximilian Jesch ¡ World Congress 2026 Europe
2:03 min
Distinguishing type definition constructs from data validation routines
Clemens Vasters ¡ World Congress 2025
4:40 min
Analyzing COBOL mainframe migration challenges with AI
Michael Friedrich ¡ World Congress 2026 Europe
2:55 min
Mainframe performance baseline and distributed computing challenges
Tomasz Woznica ¡ World Congress 2026 Europe
1:03 min
Understanding the complexity and traps of JSON schema
Clemens Vasters ¡ World Congress 2025
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