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Mainframe Performance And Capacity Planner
Posted on June 13, 2025
- København, Denmark
- 0 - 0 USD (yearly)
- Full Time

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OneAPPS GmbH (www.oneapps.com) is a Technology consulting firm based out of Germany and offices across Europe. We are working on various projects involving diverse, multicultural teams with clients across the Europe. We are an invaluable partner and our teams have collaborated to support the growth of our clients. With more than 7 locations worldwide we help our clients to deliver their projects smoothly. We look forward to getting to know you and working with you.
Mainframe Performance and Capacity Planner
Location: Copenhagen - Hybrid
Job Description:
The Mainframe Performance and capacity specialist will primarily focus on mainframe system and application performance analysis, optimization, and capacity reporting.
Responsibilities –
- Measure and optimize systems and applications performance.
- Performance and Capacity analysis, reporting, evaluation and assessment of systems and application components
- Perform proactive capacity forecast and performance management.
- Define, estimate and provision capacity requirements (Technical infrastructure)
- Monitor system capacity and performance and tune as and when required.
- Develop, enhance and maintain the in-house tools for Capacity and Performance management
Primary Skills:
•Strong experience in Mainframe Applications Performance tuning and management
- Analyze Mainframe Application code and SQLs for both batch and online components and recommend optimisation opportunities.
- Ability to perform proactive capacity and performance management to avoid any issues related to infrastructure capacity and performance.
- Strong expertise on RMF, SMF and WLM
• Good working experience with performance management tools and products (like APA, SAS, MXG, Omegamon suite)
Experience with ELK Stack
- Proficient with coding using any of most common programming languages i.e. REXX, Python, Assembler, PL/1, Cobol,Java,Powershell
Secondary Skills:
- Good understanding of zOS components and interconnection, JES2, SDSF, TSO/ISPF, JCL, Parallel Sysplex, IBM system utilities
Good to Have Skills:
- Have experience in reporting, presentations (power point and web), Excel and other reporting tools
If this role sounds like you, we invite you to apply. Thanks.
Due to work permit restrictions, we can only consider applications from UK, EU citizens as well as current work-permit holders for Denmark
Job Types: Full-time, Temporary, Contract
Application Question(s):
- Will you now or in the future require sponsorship for employment visa status?
- Are you legally authorized to work in Denmark?
Experience:
- Mainframe Applications Performance tuning: 7 years (Preferred)
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