Senior Systems Administrator (x2) | Payment Migration Project

Sydney (Hybrid | 2 Days Onsite) | Chifley Tower CBD / Bella Vista

6-Month Contract | Immediate Start | Extension Potential

About the Opportunity

NTT DATA is seeking two experienced Senior Systems Administrators to join a large-scale Core Modernisation Program focused on modernising critical enterprise infrastructure platforms.

Working within the Payment Systems Migration Stream, you will play a key role in building, validating, and preparing infrastructure environments to support a major migration initiative. This is an opportunity to contribute to a high-profile transformation program within a complex enterprise environment.

Key Responsibilities

- Build and configure Linux and Windows servers following established Standard Operating Procedures (SOPs)
- Support payment system migration activities, ensuring infrastructure readiness
- Perform server validation, testing, and readiness checks prior to deployment
- Manage and maintain Red Hat Enterprise Linux (RHEL) environments
- Administer and support VMware infrastructure, including ESXi and vCenter
- Collaborate with project teams and technical stakeholders to ensure successful migration outcomes
- Maintain technical documentation and comply with governance and process standards

Skills & Experience Required

Essential

- Strong hands-on experience with Red Hat Enterprise Linux (RHEL)
- Strong experience administering VMware environments (ESXi & vCenter)
- Working knowledge of Windows Server
- Good understanding of Active Directory and DNS




- Proven experience following structured server build processes and SOPs
- Experience in server validation, testing, and infrastructure readiness activities
- Strong troubleshooting and problem-solving skills

Desirable

- Exposure to Terraform and/or Puppet
- Experience working in large enterprise or highly regulated environments
- Familiarity with automation tools and scripting
- Experience supporting infrastructure migration or transformation programs

What's on Offer

- Immediate start
- Hybrid working model (2 days onsite)
- Opportunity to work on a significant enterprise transformation initiative
- Collaborative and supportive project environment
- Initial 6-month contract with potential for extension

Eligibility

Open to candidates with full Australian working rights

About us

NTT Ltd. is a leading global technology services company. Working with organizations around the world, we achieve business outcomes through intelligent technology solutions.For us, intelligent means data driven, connected, digital and secure. As a global ICT provider, we employ more than 40,000 people in a diverse and dynamic workplace that spans 57 countries, trading in 73 countries and delivering services in over 200 countries and regions

NTT is proud to be an equal chance employerwith a global culture that embraces diversity. We are committedto providing an environment free of unfair discrimination and harassment.We do not discriminate based on age, race, color, sex, religion, national origin, disability, pregnancy, marital status, sexual orientation, gender reassignment, veteran status, or other protected category.

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📌 Senior Systems Administrator (City of Sydney)
🏢 Ntt
📍 City of Sydney