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Mainframe Performance and Capacity Analyst
Client:
Salt
Location:
United Kingdom
Job Category:
Other
-
EU work permit required:
Yes
Job Reference:
5fb5ade7490f
Job Views:
4
Posted:
02.07.2025
Expiry Date:
16.08.2025
Job Description:
Contract Role: Mainframe Performance and Capacity Analyst – Banking – Inside IR35
Location: UK (Remote) or Denmark (Hybrid – 10 days/month onsite)
Duration: 6 months+
Start: ASAP
Client: Global Consultancy, End Client in the Banking Sector
Salt is working with a global consultancy delivering high-level mainframe optimisation services to a major banking client. We are recruiting an experienced Mainframe Performance and Capacity Analyst to support proactive tuning and capacity planning across critical z/OS environments.
This role sits within a Performance Competence Centre, with responsibility for system and application performance diagnostics, workload forecasting, and tooling optimisation.
Key Responsibilities:
* Monitor, analyse, and tune mainframe system and application performance
* Conduct capacity forecasting and support infrastructure provisioning
* Lead performance data analysis and reporting using SMF, RMF, WLM
* Develop and maintain custom tooling and dashboards
* Liaise with technical teams to prevent capacity-related issues
* Create documentation, reports, and performance improvement plans
* 7+ years’ experience in mainframe performance tuning and capacity planning
* Strong knowledge of SMF, RMF, WLM, and performance management tooling (APA, MXG, SAS)
* Ability to analyse batch and online application performance
* Comfortable working in high-availability banking environments
* Experience with ELK stack or in-house dashboarding tools
* Coding experience in REXX, Python, Assembler, or PL/1
* Familiarity with z/OS system internals and workload behaviours
* UK-based contractors: Fully remote. Must work via umbrella (inside IR35)
* Denmark-based contractors: Hybrid model, 10 days/month onsite
* Background checks to be completed post-onboarding
*Rates depend on experience and client requirements
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