Mainframe Developer
ITFS
Warsaw, Poland • 22m ago • Remote
Mid
Remote
228,800 - 270,400 PLN/yr
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Quick Facts
- 100% remote
- Start: ASAP
- Contract: B2B via ITFS
- Rate: 110–130 PLN/hour + VAT
Description
Work on critical business systems built on IBM Mainframe technologies. You will develop and maintain advanced applications, analyze business requirements, optimize for performance/reliability/security, and handle production issues while taking part in a rotating on-call duty.
Responsibilities
- Develop and maintain critical IBM Mainframe-based business systems
- Design, build, and extend advanced applications supporting daily operations
- Analyze business requirements and independently implement solutions
- Optimize applications for performance, reliability, and security
- Troubleshoot production problems
- Participate in rotating on-call (a few days per month)
Requirements
- Minimum 2 years of experience creating and maintaining IBM Mainframe applications
- Very good knowledge of COBOL, JCL, CICS, and z/OS
- Practical experience with DB2 including SQL query writing, optimization, and data analysis
- Ability to analyze business requirements and design solutions
- Experience diagnosing production failures and optimizing applications
- Proactive and responsible attitude, with ability to work independently
- Experience working in an international project environment
- English level at least B2
- Willingness to take part in on-call duties
Benefits
- Medical and sports package
- Free accounting support (up to 3 entries per month)
- Work on an interesting, growth-oriented project
- Clear collaboration terms with a stable market-position organization
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