Job Summary
Who We Are
We're an iconic Aussie brand with a global footprint. Our purpose is to build a connected future so everyone can thrive. We're all about providing the best experience and delivering the best tech on the best network.
This includes making Telstra the place you want to work. For you, that means a having career that grows with you and working with a team powered by human connection that prioritises wellbeing and choice.
Focus of the Role
You do this by drawing on your deep expertise in mainframe technologies, combined with your broad experience in designing, implementing, managing and improving complex technology solutions.
What We Offer
Performance-related pay
Access to thousands of learning programs so you can level-up
Global presence across 22 countries; opportunities to work where we do business.
Purchased annual leave scheme
Additional Telstra day off
Additional 30% off Telstra products and services
Toolkit provided (laptop + mobile phone + plan paid for)
What You’ll Do
Global Networks & Technology - Network & Infrastructure Engineering designs and delivers Telstra's network and infrastructure solutions, ensuring they're reliable, scalable, and secure.
We are seeking a highly skilled IT Domain-Senior Specialist to join the Mainframe Services mission. This role is critical to maintaining the stability, performance, and security of our Mainframe Platform. The ideal candidate will have deep expertise in IBM z/OS environments, COBOL programming, JCL scripting, and mainframe performance tuning.
Key Responsibilities
Maintain and support IBM z/OS mainframe systems, ensuring high availability and performance
Develop, test, and deploy COBOL programs and batch jobs using JCL
Monitor system health, troubleshoot issues, and implement corrective actions
Collaborate with cross-functional teams to integrate mainframe applications with distributed systems
Perform capacity planning, disaster recovery testing, and system upgrades
Ensure compliance with security policies and audit requirements
Document system configurations, procedures, and change management activities
Required Skills & Experience
5+ years of hands-on experience with IBM Mainframe technologies
Proficiency in COBOL, JCL, VSAM, DB2, and CICS
Must be able to read/write REXX and SAS and understand CLIST and ISPF
Strong understanding of z/OS architecture and system utilities
Experience with performance monitoring tools (e.g., RMF, SMF)
Familiarity with RACF security administration
Excellent problem-solving and analytical skills
Strong communication and documentation abilities
Preferred Qualifications
We're amongst the top 2% of companies globally in the CDP Global Climate Change Index 2023, being awarded an 'A' rating. If you want to work for a company that cares about sustainability, we want to hear from you.
As part of your application with Telstra, you may receive communications from us on +61 440 135 548 (for job applications in Australia) and +1 (623) 400-7726 (for job applications in the Philippines and India).
When you join our team, you become part of a welcoming and inclusive community where everyone is respected, valued and celebrated. We actively seek individuals from various backgrounds, ethnicities, genders and disabilities because we know that diversity not only strengthens our team but also enriches our work. We have zero tolerance for harassment of any kind, and we prioritise creating a workplace culture where everyone is safe and can thrive.
As part of the hiring process, all identified candidates will undergo a background check, and the results will play a role in the final decision regarding your application.
We work flexibly at Telstra. Talk to us about what flexibility means to you. When you apply, you can share your pronouns and / or any reasonable adjustments needed to take part equitably during the recruitment process.
We are aware of current limitations with our website accessibility and are working towards improving this. Should you experience any issues accessing information or the application form, and require this in an alternate format, please contact our Talent Acquisition team on DisabilityandAccessibility@team.telstra.com or via the additional contact options found at www.telstra.com.au/careers/diversity-equity-and-inclusion/disability-employment