IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London
IBM Mainframe Engineers / z/OS Systems Programmers Contract

IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London

City of London Freelance Home office (partial)
Essential Consulting

At a Glance

  • Tasks: Support and engineer IBM z/OS platforms in a dynamic banking environment.
  • Company: Join a major global banking client with a focus on Mainframe infrastructure.
  • Benefits: Competitive daily rate, hybrid working model, and opportunities for professional growth.
  • Why this job: Be part of a critical team supporting high-volume systems and make a real impact.
  • Qualifications: Strong experience in IBM Mainframe (z/OS) and systems programming is essential.
  • Other info: Flexible location within the UK and occasional onsite presence in Sheffield.

We are currently supporting a major global banking client in the build-out of their core Mainframe infrastructure team and are looking to engage experienced IBM Mainframe professionals across a number of specialist areas. This is an opportunity to join a large-scale enterprise environment, working on a complex and business-critical IBM z/OS estate supporting high-volume, mission-critical systems.

We are interested in speaking with contractors with strong Mainframe infrastructure experience, particularly within z/OS environments, across areas such as Systems Programming, Automation, CICS, DB2 and Storage.

Key Responsibilities:
  • Provide hands-on support and engineering across IBM z/OS platforms
  • Perform system upgrades, maintenance and ongoing platform support
  • Troubleshoot and resolve complex production issues
  • Work across core mainframe tooling including JCL, TSO/ISPF and SMP/E
  • Support critical banking systems in a high-availability environment
  • Contribute to both BAU support and project-based initiatives
Key Skills & Experience:
  • Strong experience within IBM Mainframe (z/OS) environments (essential)
  • Background in infrastructure / systems programming (not development-focused)
  • Experience in one or more of the following areas:
  • z/OS Systems Programming
  • System Automation (OPS/MVS, IBM SA)
  • CICS Transaction Server
  • DB2 for z/OS
  • IBM Z Storage (DFSMS, DASD)
  • Solid understanding of core tooling such as JCL, TSO/ISPF, SMP/E
  • Experience supporting production systems in enterprise environments
  • Location: UK-based, hybrid working model. While there is a preference for occasional onsite presence in Sheffield, there is flexibility on location within the UK for the right candidate.

    Rate: £500 - £575 per day (umbrella - inside IR35) dependent on experience.

    IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London employer: Essential Consulting

    Join a leading global banking client as an IBM Mainframe Engineer and be part of a dynamic team that values innovation and expertise. With a hybrid working model based in the UK, you will enjoy a flexible work environment that fosters collaboration and professional growth. Our commitment to employee development, coupled with the opportunity to work on critical systems in a large-scale enterprise setting, makes this an exceptional place for skilled professionals seeking meaningful and rewarding careers.
    Essential Consulting

    Contact Detail:

    Essential Consulting Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London

    ✨Tip Number 1

    Network like a pro! Reach out to your connections in the IBM Mainframe community. Attend meetups or webinars, and don’t be shy about asking for introductions. You never know who might have the inside scoop on job openings!

    ✨Tip Number 2

    Show off your skills! Create a portfolio or a personal website showcasing your experience with z/OS systems programming and any projects you've worked on. This gives potential employers a tangible look at what you can bring to the table.

    ✨Tip Number 3

    Prepare for interviews by brushing up on common z/OS scenarios and troubleshooting techniques. Practice explaining your thought process clearly, as this will help you stand out when discussing complex production issues.

    ✨Tip Number 4

    Don’t forget to apply through our website! We’ve got loads of opportunities that match your skills. Plus, applying directly shows your enthusiasm and commitment to joining our team.

    We think you need these skills to ace IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London

    IBM Mainframe
    z/OS
    Systems Programming
    Automation
    CICS Transaction Server
    DB2 for z/OS
    IBM Z Storage
    DFSMS
    DASD
    JCL
    TSO/ISPF
    SMP/E
    Troubleshooting
    Production Support
    High-Availability Systems

    Some tips for your application 🫡

    Tailor Your CV: Make sure your CV highlights your experience with IBM Mainframe and z/OS environments. We want to see how your skills in Systems Programming, Automation, and other key areas match what we're looking for.

    Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're the perfect fit for this role. Mention specific projects or experiences that relate to the responsibilities listed in the job description.

    Showcase Relevant Skills: When filling out your application, emphasise your hands-on experience with core mainframe tooling like JCL, TSO/ISPF, and SMP/E. We’re keen on seeing how you’ve tackled complex production issues in high-availability environments.

    Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and get the ball rolling on your application process.

    How to prepare for a job interview at Essential Consulting

    ✨Know Your z/OS Inside Out

    Make sure you brush up on your knowledge of IBM z/OS environments. Be prepared to discuss your hands-on experience with systems programming, automation, and any specific tools like JCL or TSO/ISPF. The more you can demonstrate your expertise, the better!

    ✨Showcase Problem-Solving Skills

    Since troubleshooting is a key part of the role, think of specific examples where you've resolved complex production issues. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight your critical thinking skills.

    ✨Familiarise Yourself with Banking Systems

    Given that this role supports critical banking systems, it’s beneficial to understand the unique challenges and requirements of high-availability environments. Research common issues faced in banking IT and be ready to discuss how your experience aligns with these.

    ✨Ask Insightful Questions

    Prepare some thoughtful questions about the team, projects, and the company’s approach to mainframe infrastructure. This shows your genuine interest in the role and helps you assess if it's the right fit for you. Plus, it gives you a chance to engage with the interviewers!

    IBM Mainframe Engineers / z/OS Systems Programmers Contract in City of London
    Essential Consulting
    Location: City of London

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