# ISI Pty Ltd jobs and careers

> 0 open roles at ISI Pty Ltd as of October 23, 2026. Source: https://www.thejobsmap.com/company/isi-pty-ltd

MAINFRAME IS AT OUR CORE ISI is an Australian mainframe expert distinguished by its surgical focus on mainframe technologies and a clear 30-year pedigree in mainframe infrastructure platforms, modernisation, and orchestration. Working with federal and state government agencies and commercial enterprises across industries, we have been delivering comprehensive mainframe support to organisations across Australia since 2003. ISI offers an extensive portfolio of tailored services, specialist skills, and the latest solutions from major global IT vendors to help you address all your mainframe challenges, needs and future plans. We are a certified IBM Platinum Business Partner and a technology partner of Microsoft, AWS, and Red Hat. Our team consists of mainframe subject matter experts with years of hands-on experience gained working for Australian public and private sector organisations. Their in-depth expertise allows us to comprehensively address all your mainframe needs across the three critical areas: 1. ORCHESTRATED MAINFRAME SERVICES Manage performance and optimise the cost of running your mainframe: • Managed Services expertise • Secure operations • Cost & risk optimisation • Application transformation • Consulting services 2. INTELLIGENT MAINFRAME MODERNISATION Develop for today and optimise for tomorrow: • Platform • Applications • Database & Data access • DevOps toolchain • Security & Testing 3. CLOUD SOLUTIONS FOR MAINFRAME Ensure a secure and reliable cloud platform for your critical workloads: • Cloud native experience • Process automation • Cloud enablement + containerisation • Services modernisation • Enterprise storage strategy Visit us at https://isi.com.au/ to learn more about how we can support your organisation.

## Key facts

| | |
|---|---|
| Open roles | 0 |
| Headquarters | Sydney, New South Wales, Australia |
| Founded | 1991 |
| Employees | 125 |
| Industries | Cloud, Enterprise Software, IT Services, IT Infrastructure |
| Website | https://isi.com.au |

## Leadership

- Gary Fliess, Chief Executive Officer
- Ahetesham Alam khan, Senior Mainframe system programmer
- Reinhard Mark, Senior Account Manager
- Peter Bishop, Solutions Architect

## Common questions

### Is ISI Pty Ltd hiring right now?

ISI Pty Ltd has no open roles listed as of October 23, 2026. Roles appear here as soon as they are posted on ISI Pty Ltd's careers site.

### Where is ISI Pty Ltd headquartered?

ISI Pty Ltd is headquartered in Sydney, New South Wales, Australia and was founded in 1991.

### Who leads ISI Pty Ltd?

Gary Fliess, Chief Executive Officer, is at the top of ISI Pty Ltd's org chart.

### How do I apply for a job at ISI Pty Ltd?

Pick a role on ISI Pty Ltd's TheJobsMap page and select Apply. Every listing links to the original posting on ISI Pty Ltd's own careers site, so you apply directly with the employer.