Mainframe Middleware Infrastructure Engineer

Mainframe Middleware Infrastructure Engineer

Temporary 36000 - 60000 £ / year (est.) Home office (partial)
Sivara GmbH

At a Glance

  • Tasks: Support and optimise modern Java workloads in CICS Liberty environments.
  • Company: Join a leading enterprise transforming banking infrastructure.
  • Benefits: Competitive salary, hybrid working model, and contract duration of 6-12 months.
  • Other info: Work in a dynamic environment with opportunities for professional growth.
  • Why this job: Make an impact on critical financial services while modernising core platforms.
  • Qualifications: Deep knowledge of CICS systems and experience with Java workloads.

The predicted salary is between 36000 - 60000 £ per year.

Salary: £36,000 - 60,000 per year

Requirements

  • Deep knowledge of CICS systems engineering and z/OS infrastructure
  • Experience with CICS region setup, configuration, and JVM server management
  • Strong knowledge of IBM WebSphere Liberty administration and runtime configuration
  • Experience managing Java workloads, including JVM tuning and performance optimisation
  • Working knowledge of RACF, TLS, certificates, keyrings, and security integration
  • Experience with REST/API enablement and modern integration practices
  • Ability to perform problem determination using dumps, traces, logs, and SMF data
  • Experience with capacity planning, resilience, HA/DR, and operational support
  • Experience with CI/CD pipelines, automated deployments, and release processes
  • Knowledge of monitoring, observability, and middleware operational management

Responsibilities

  • Support the engineering, configuration, optimisation, and support of modern Java workloads running within CICS Liberty environments
  • Manage CICS region setup, configuration, and JVM server operations
  • Administer IBM WebSphere Liberty runtime environments
  • Tune JVM performance and manage Java workloads
  • Implement and support REST/API enablement and modern integration practices
  • Investigate and resolve issues using dumps, traces, logs, and SMF data
  • Support capacity planning, resilience, HA/DR, and operational stability
  • Work with CI/CD pipelines, automated deployments, and release processes
  • Contribute to monitoring, observability, and middleware operational management

Technologies

  • API
  • CI/CD
  • IBM
  • IBM WebSphere
  • Support
  • JVM
  • Java
  • REST
  • Security
  • Websphere
  • DevOps

We are offering a 6-12 month contract for a Mainframe Middleware Infrastructure Engineer (CICS Liberty) based in London or Edinburgh with a hybrid working model of 2-3 days onsite. This is an excellent opportunity to work on critical banking and financial services infrastructure while helping modernise core mainframe platforms with contemporary Java and API technologies. We are seeking someone to join a major enterprise transformation programme and help support our modernisation efforts.

Mainframe Middleware Infrastructure Engineer employer: Sivara GmbH

Join a forward-thinking company that values innovation and employee development, offering a competitive salary and a hybrid working model in vibrant cities like London or Edinburgh. With a strong focus on modernising banking infrastructure, you'll have the opportunity to work on cutting-edge technologies while enjoying a collaborative work culture that fosters growth and professional advancement.

Sivara GmbH

Contact Details:

Sivara GmbH Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Mainframe Middleware Infrastructure Engineer

Join Financial Networking Events

Jump into local finance meetups and conferences — they’re a goldmine for temporary roles in banking and financial services. You can chat with industry professionals and even get leads on upcoming opportunities that might not be posted online yet.

Utilise Temp Agencies Specialised in Finance

Reach out to temp agencies that focus on the banking sector. They often have strong ties with various firms and can help you secure short-term gigs that can help beef up your CV and get your foot in the door at firms like Sivara GmbH.

Connect with Alumni from Your Uni

Don't underestimate the power of your university’s alumni network. Many former students are working in banking and can help you find temporary roles or even offer mentorship. Reach out directly or attend alumni events to broaden your circle.

Stay Active on Job Boards and Company Websites

Keep your eyes peeled on job boards specifically for finance roles. Companies like Sivara GmbH might post temporary positions directly on their sites, so make sure to apply there too. Set alerts to catch those roles the moment they go live!

We think you need these skills to ace Mainframe Middleware Infrastructure Engineer

CICS Systems Engineering
z/OS Infrastructure
CICS Region Setup and Configuration
JVM Server Management
IBM WebSphere Liberty Administration
Java Workload Management
JVM Tuning and Performance Optimisation

Some tips for your application 🫡

Show Off Your Academic Achievements:In banking and financial services, your academic record can really make you stand out. List relevant grades, certifications, or coursework on your CV, especially if you've taken finance-related modules. This is particularly important for a temporary role where qualifications can help you shine even brighter!

Highlight Relevant Experience:If you’ve done any internships, part-time roles, or even coursework that aligns with banking or finance, make sure you include those! Showcase specific tasks where you used quantitative skills or analytical thinking, as this is what the hiring managers at Sivara GmbH will be keen to see in your application.

Tailor Your Cover Letter Purposefully:When writing your cover letter, focus on why you’re interested in a temporary position at Sivara GmbH. Let them know how you can quickly adapt to the team's needs and how eager you are to learn the ropes of the banking sector during this short stint. Your motivation and enthusiasm could really set you apart!

Be Prepared with References:For temporary roles, references can play a crucial role in your application. Make sure you’ve got a couple of references lined up who can vouch for your skills and work ethic. This helps to give Sivara GmbH confidence in your short-term commitment to the role.

How to prepare for a job interview at Sivara GmbH

Brush Up on Financial Regulations

Since this is a role in banking and financial services, be ready to discuss key regulations like MiFID, Basel III, or GDPR. These are hot topics, and your awareness of how they impact daily operations can give you a significant edge during your interview with Sivara GmbH.

Showcase Your Analytical Skills

Prepare for interview questions that assess your analytical abilities. You might need to tackle hypothetical scenarios involving risk assessment or financial forecasting. Bringing examples of relevant projects or coursework can emphasise your practical understanding of these concepts.

Highlight Flexibility and Adaptability

For a temporary role, showing that you can quickly pick up new processes and tools is crucial. Be ready to discuss previous experiences where you had to adapt to changing requirements or tight deadlines, as this will reassure Sivara GmbH that you’re a reliable team player.

Demonstrate a Willingness to Learn

In a temporary position, leaning into your eagerness to learn can really set you apart. Be prepared to share how you’re staying updated on industry trends or any additional training you've pursued. Employers appreciate candidates who are proactive about their development—even for short-term roles.