Senior IT Domain Specialist - Splunk

Telstra; Melbourne; On-site; AUD 150,000 - 185,000; Full time

Benefits offered by this job

Performance-related pay

Learning programs and development

Global presence across countries

Purchased annual leave scheme

Additional Telstra day off

30% off Telstra products and services

Toolkit provided (laptop + mobile)

Job summary

Telstra is seeking a Senior IT Domain Specialist with Splunk ITSI expertise to lead observability strategy and lifecycle management across Defence environments. You will drive architecture, data onboarding, and automation, building reliable monitoring and reporting capabilities to enable rapid issue detection and service assurance.

The role focuses on transitioning observability from external support to a sustainable internal capability, aligning with security accreditation and operational

Qualifications

• AGSVA NV2 Security Clearance
• 8+ years delivering/operating observability, monitoring or support platforms
• Splunk certifications across admin/architecture/ITSI desirable
• Experience in both platform delivery and production support
• Experience with monitoring design, dashboards, alerting and analytics
• Experience with integrations and complex service dependencies in production
• Agile and DevSecOps practices
• Exposure to secure or regulated environments such as Defence is desirable

Responsibilities

• Lead design and delivery of Splunk and ITSI observability solutions across Defence environments
• Own observability architecture, service modelling standards and platform roadmap
• Design, develop and maintain ITSI services, KPIs, correlations, notable events and health views
• Lead data onboarding, source integration and monitoring uplift for improved visibility
• Build and optimise dashboards, alerts and reporting views for incident response and decision making
• Oversee monitoring coverage for critical integrations and interface health validation
• Drive automation of monitoring and validation processes to reduce manual effort
• Support transition of observability capability from external providers to internal teams

Job description

Employment Type

Permanent

Closing Date

2 Nov 2026 11:59pm

Job Title

Senior IT Domain Specialist - Splunk

Job Summary

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 prioritizes 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

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