Senior IT Domain Specialist - Splunk

Telstra Corporation; Melbourne; On-site; AUD 90,000 - 130,000; Full time

Benefits offered by this job

Performance-related pay

Access to learning programs

Global presence across 22 countries

Purchased annual leave scheme

Additional Telstra day off

Discount on Telstra products and plans

Toolkit provided (laptop + phone + SIM

Job summary

Telstra is seeking a Senior IT Domain Specialist - Splunk to lead the design, delivery and lifecycle management of observability across Defence environments. You will drive automation, analytics uplift and transition internal capability from external providers, aligning outcomes with security accreditation and resilience goals.

You will own end-to-end Splunk and ITSI observability, including architecture, data onboarding, monitoring design, alerting and dashboards, with a focus on proactive

Qualifications

• Eight+ years of experience delivering, operating or optimising observability or monitoring platforms, with Splunk preference.
• Experience with security accreditation, regulatory compliance and assurance in Defence or similar environments.
• Strong architecture, data onboarding and dashboarding capabilities in Splunk ITSI.

Responsibilities

• Lead design and delivery of complex Splunk/ITSI observability solutions across Defence environments.
• Own observability architecture, service modelling standards and platform roadmap.
• Design, develop and maintain ITSI services, KPIs, correlation searches and health views.
• Lead data onboarding and monitoring uplift to improve service visibility across platforms.

Skills

Splunk ITSI service modelling

Splunk architecture

Observability design

Data onboarding

Correlation searches

Dashboard development

Monitoring design

Automation scripting

DevSecOps practices

Stakeholder engagement

Coaching capability

Technical problem solving

Education

AGSVA NV2 Security Clearance

Tools

Splunk

ITSI

Job description

Employment Type Permanent Closing Date 2 Nov 2026 11:59pm Job Title Senior IT Domain Specialist - Splunk

Job Description 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 having a career that grows with you and working with a team powered by human connection that prioritises wellbeing and choice.

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 is the focus of the role?

As a Senior IT Domain Specialist aligned to Splunk ITSI, you lead the design, delivery and ongoing lifecycle management of observability, monitoring and service intelligence capabilities supporting Defence environments. The role focuses on establishing reliable, secure and actionable visibility across platforms, services and integrations, enabling early detection of issues, improved service assurance and stronger operational control. You will play a key role in transitioning observability capability from externally delivered support to an internally owned model, while driving automation, analytics uplift and continuous improvement across the service lifecycle. You are accountable for the end to end lifecycle of Splunk and ITSI based observability solutions, including architecture, service modelling, data onboarding, monitoring design, alerting, dashboarding, integration visibility, optimisation and continuous improvement. The role provides technical leadership across observability capability and ensures monitoring outcomes are aligned to Defence security accreditation, operational resilience and service continuity requirements. As part of the insourcing program, you will lead capability uplift, embed lifecycle ownership and reduce reliance on external providers by establishing a sustainable internal observability capability that supports operational decision making, proactive service management and long term platform maturity.

Responsibilities

• Lead the design and delivery of complex Splunk and ITSI observability solutions across Defence environments
• Own observability architecture, service modelling standards and platform roadmap aligned to operational, lifecycle and compliance requirements
• Design, develop and maintain ITSI services, key performance indicators, correlation searches, notable events and health views
• Lead data onboarding, source integration and monitoring uplift to improve service visibility across platforms, applications and interfaces
• Build and optimise dashboards, alerts and reporting views that support incident response, service assurance and operational decision making
• Oversee monitoring coverage for critical integrations, including validation of interface health, performance trends and early fault indicators

General Responsibilities

• Own lifecycle activities for the observability platform, including upgrades, patching, release planning, configuration management and ongoing optimisation
• Drive automation of monitoring, alerting and operational validation processes to reduce manual effort and improve reliability
• Support transition of observability capability from external providers to internal teams, ensuring knowledge transfer, documentation and continuity
• Identify risks across platform performance, data quality, alerting effectiveness and integration visibility, then implement practical mitigation strategies
• Provide technical leadership, coaching and mentoring to specialist and associate level engineers
• Influence stakeholders across engineering, operations, security and service management to align observability capability with business and customer outcomes
• Contribute to the continuous improvement backlog, including monitoring maturity, event noise reduction, dashboard rationalisation, data quality improvement and operational process uplift
• Ensure DevSecOps practices are embedded across observability delivery, operational support and lifecycle management

Skills

• Splunk ITSI service modelling, key performance indicators, notable events and health scoring
• Splunk enterprise architecture, administration and platform optimisation
• Observability design across infrastructure, applications, services and integrations
• Data onboarding, parsing, indexing and source integration
• Correlation searches, alert tuning and event management
• Dashboard development, operational reporting and service assurance views
• Monitoring design for complex, secure and regulated environments
• Automation and scripting for operational validation and platform support
• DevSecOps practices and delivery models
• System lifecycle management, release governance and operational change control
• Stakeholder engagement and influencing across technical and operational teams
• Coaching and capability development
• Technical problem solving in complex production environments

Qualifications

• AGSVA NV2 Security Clearance
• Eight or more years experience delivering, operating or optimising observability, monitoring or operational support platforms, with strong preference for Splunk and ITSI
• Splunk certifications across administration, architecture or ITSI desirable
• Experience across both platform delivery and production support environments
• Experience with monitoring design, event management, dashboarding, alerting and operational analytics
• Experience supporting integrations, interfaces or complex service dependencies in production environments
• Experience in Agile and DevSecOps practices
• Exposure to secure or regulated environments such as Defence is highly desirable

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 [phone] (for job applications in Australia) and [phone] (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. Adjustment requests and accessibility support can be arranged using the contact details below. 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 or via the additional contact options found at www.telstra.com.au/careers/diversity-equity-and-inclusion/disability-employment

We’re an iconic Aussie brand with a global footprint. From our earliest days in the Postmaster General’s Office to the Australian icon we are today, the heart of Telstra has never changed. We’ve always been committed to being a great place to work as we make the world a better place too. Working at Telstra, we all have a why. Whether it’s endless career opportunities, an amazing work-life balance or being able to make a difference, we all know why we’re motivated to be our best here. Our people find purpose and pride in being part of Telstra, because we support the things that matter most.

We are committed to making it easy for everyone to apply. If you require accessibility support or adjustments during the recruitment process, please send an email to Disability and Accessibility inbox. [e-mail].

In a business as big and diverse as ours, there’s a huge breadth of career paths available. Uncover opportunities, broaden your experience, and discover the many areas of our organization there is to explore.

Explore our teams https://www.telstra.com.au/careers/our-teams