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- Tasks: Monitor and optimise mainframe performance in a dynamic banking environment.
- Company: Join a global consultancy renowned for high-level mainframe optimisation services.
- Benefits: Enjoy remote work flexibility or a hybrid model with onsite days in Denmark.
- Why this job: Be part of a cutting-edge team making a real impact in the banking sector.
- Qualifications: 7+ years in mainframe performance tuning; strong knowledge of SMF, RMF, and WLM required.
- Other info: Contract role inside IR35; competitive rates based on experience.
The predicted salary is between 43200 - 72000 £ per year.
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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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Mainframe Performance and Capacity Analyst employer: Salt
Contact Detail:
Salt Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Mainframe Performance and Capacity Analyst
✨Tip Number 1
Familiarise yourself with the specific tools mentioned in the job description, such as SMF, RMF, and WLM. Having hands-on experience or even a solid understanding of these tools will give you an edge during discussions with our hiring team.
✨Tip Number 2
Network with professionals in the banking sector who have experience in mainframe performance tuning. Engaging with them on platforms like LinkedIn can provide insights into the role and may even lead to referrals.
✨Tip Number 3
Prepare to discuss your past experiences in high-availability environments. Be ready to share specific examples of how you've successfully managed performance tuning and capacity planning in similar settings.
✨Tip Number 4
Stay updated on the latest trends and technologies in mainframe performance management. Showing that you're proactive about learning can impress us and demonstrate your commitment to the field.
We think you need these skills to ace Mainframe Performance and Capacity Analyst
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience in mainframe performance tuning and capacity planning. Include specific examples of your work with SMF, RMF, and WLM, as well as any relevant coding experience in REXX, Python, Assembler, or PL/1.
Craft a Strong Cover Letter: Write a cover letter that directly addresses the key responsibilities mentioned in the job description. Emphasise your ability to conduct capacity forecasting and your experience in high-availability banking environments.
Showcase Relevant Projects: If you have worked on projects involving performance diagnostics or tooling optimisation, be sure to include these in your application. Detail your role and the impact of your contributions.
Proofread Your Application: Before submitting, carefully proofread your CV and cover letter for any errors or typos. A polished application reflects your attention to detail, which is crucial for this role.
How to prepare for a job interview at Salt
✨Showcase Your Technical Expertise
Make sure to highlight your experience with mainframe performance tuning and capacity planning. Be prepared to discuss specific tools like SMF, RMF, and WLM, and how you've used them in past roles.
✨Demonstrate Problem-Solving Skills
Prepare examples of how you've diagnosed and resolved performance issues in high-availability environments. This will show your ability to think critically and act decisively under pressure.
✨Familiarise Yourself with the Client's Needs
Research the banking sector and understand the unique challenges they face regarding mainframe performance. Tailor your responses to demonstrate how your skills can directly benefit their operations.
✨Prepare for Technical Questions
Expect in-depth technical questions related to z/OS internals and workload behaviours. Brush up on your coding knowledge in REXX, Python, or Assembler, as you may be asked to solve a problem on the spot.
