Systems Engineer

About the role

The Senior Systems Engineer is responsible for the design, implementation, automation, monitoring, and support of critical telecommunications infrastructure that underpins carrier-grade network services. The role ensures the availability, reliability, security, and performance of systems supporting telecommunications operations, customer services, network management platforms, and business-critical applications.

Working within a complex and highly available environment, the Senior Systems Engineer will lead the administration of Red Hat Linux platforms, virtualization infrastructure, authentication services, monitoring systems, and automation frameworks while supporting the operational requirements of a 24x7 telecommunications network.

What you’ll be doing

Telecommunications Infrastructure Operations

• Design, deploy, and support highly available infrastructure supporting telecommunications platforms and network services.
• Ensure infrastructure stability and resilience across production, disaster recovery, and testing environments.
• Support systems that enable OSSplatforms, network management systems, authentication services, and customer-facing applications.
• Participate in network and infrastructure upgrades, maintenance activities, and technology refresh programs.

Linux Platform Engineering

• Administer and maintain enterprise-scale Red Hat Enterprise Linux (RHEL) environments.
• Manage operating system lifecycle activities, patching, vulnerability remediation, and compliance standards.
• Leverage Red Hat Satellite for system provisioning, patch management, configuration control, and reporting.

Automation & DevOps

• Develop and maintain automation solutions using Ansible to streamline deployment, configuration, and operational processes.
• Create and maintain Python scripts and tools to improve operational efficiency and reduce manual intervention.
• Drive Infrastructure-as-Code and automation best practices across operational environments.

Authentication & Network Services

• Administer and support RADIUS infrastructure for customer, network device, and operational authentication services.
• Work closely with network engineering teams to support AAA (Authentication, Authorization, and Accounting) platforms.
• Troubleshoot authentication, access control, and integration issues across network and application environments.

Virtualisation & Platform Management

• Manage and support enterprise VMware infrastructure including ESXi, vCenter, cluster management, storage integration, and high availability services.
• Perform capacity planning, resource optimization, and infrastructure performance tuning.

Monitoring & Observability

• Design and maintain operational dashboards, monitoring, and alerting using Grafana.
• Develop proactive monitoring solutions for systems, applications, and telecommunications platforms.
• Identify trends and operational risks through data analysis and performance metrics.

Database Administration

• Support and maintain MySQL databases supporting operational and customer service platforms.
• Perform backup management, recovery testing, performance tuning, replication management, and troubleshooting.

Incident & Problem Management

• Act as a senior escalation point for complex systems and infrastructure issues.
• Perform root cause analysis of major incidents, implementing permanent corrective actions.
• Support 24x7 operational environments through participation in on-call and after-hours support rosters.

Security & Compliance

• Implement security hardening standards across Linux, virtualized, and database platforms.
• Ensure compliance with telecommunications security, operational, and regulatory requirements.
• Support vulnerability management and remediation programs.

Leadership & Mentoring

• Provide technical leadership and guidance to engineers within the Infrastructure and Operations team.
• Contribute to architecture reviews, technology roadmaps, and continuous improvement initiatives.
• Mentor junior engineers and promote engineering best practices.

What you’ll bring to the role

Essential

• Minimum 7+ years of experience in Systems Engineering, Infrastructure Engineering, or Platform Operations roles.

• Advanced administration of Red Hat Enterprise Linux (RHEL).
• Strong experience with Ansible automation and configuration management.
• Proficiency in Python scripting and automation.
• Experience managing VMware vSphere, ESXi, and vCenter environments.
• Strong knowledge of Grafana monitoring and dashboard development.
• Administration and support of MySQL databases.
• Experience with Red Hat Satellite.
• Experience supporting RADIUS authentication environments.
• Strong troubleshooting skills across Linux, virtualization, authentication, and database technologies.
• Bachelor’s degree in information technology, Engineering, Computer Science, or equivalent industry experience.

Telecommunications Experience

• Experience operating in a telecommunications, ISP, carrier, or managed network services environment.
• Knowledge of carrier-grade availability requirements and operational practices.
• Familiarity with OSS/BSS platforms and network management systems.
• Understanding of AAA services, network authentication, and telecommunications operational processes.
• Experience supporting systems that operate in 24x7 environments.

What We Offer

Working at Vocus will give you rewarding experiences and the opportunity to do extraordinary work. You will enjoy:

• Diverse and dynamic teams with a supportive and inclusive culture.
• Supportive career development plans with comprehensive ongoing training, support, and development opportunities.
• Flexible hours and a hybrid working environment
• Generous discounts on power, gas, mobile and internet; plus, discounts to over 400 retailers.
• Competitive leave options, including anniversary leave, purchased leave, parental leave, volunteering leave, study leave, and 5 extra days of Vocus leave each year, plus more.
• Study assistance programs to excel your personal growth, learning and development.
• Health and wellness offerings, including access to our wellbeing initiatives that can help you from a financial, psychological, and physical perspective.

Working at Vocus is never just a job – it’s personal. We’re crazy about our customers and believe our people are the difference. Our wonderfully diverse team and a vibrant culture define us. We care about the impact we have on our people, our customers, and our communities and are committed to operating as a responsible, ethical business.

We pride ourselves on setting audacious and ambitious goals and believe that we can play our part in changing the Australian telecommunications landscape and make a fundamental difference to people’s lives.

With us, you’ll have the opportunity to lead and inspire teams, work on projects that are shaping the future of telecommunications and become part of a culture that thrives on creativity, encourages new ideas, and provides a collaborative and inclusive environment.

About Us

As Australia’s specialist fibre and network solutions provider, we own and operate 25,000km of secure, high-capacity fibre connecting people, businesses, governments, and communities across Australia to the world. Through our well-known retail brands, we deliver simple and affordable broadband, mobile, voice and energy services with the purpose of Building Critical Connections. Enabling Better Possibilities.

Ready to take the next step?

If you like the sound of this role and think you’d do a great job, but are worried you don’t tick every box, we encourage you to back yourself – we know that diverse groups are less-likely to apply for roles they’re not 100% qualified for, but just as likely to succeed at them!

We are a proud equal opportunity employer committed to providing a safe, diverse, and inclusive working environment where all our team members feel like they belong. We know diversity makes us stronger and we encourage applications irrespective of background, age, origin, gender, sexual orientation, identity, or ability.

If you feel comfortable, please let us know if you have any accessibility requirements upon application, so we can make any adjustments required to support you throughout our recruitment process.