Senior Platform Engineer

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband, and digital solutions.

As Senior Platform Engineer – Internet Services you will create, maintain, and optimize critical ISP systems that support broadband service delivery and help advance our multi-platform private cloud strategy, working with both commercial and open-source virtualization tools. 

What You’ll Do 

• Manage and improve ISP core network service platforms, including:
  • RADIUS, DHCP, DNS Services
  • Provisioning & Activation Systems
  • TR-069/ACS CPE Management
  • NBN and Carrier Interconnect/Integration
• Ensure platform reliability, redundancy, security, and compliance with internal and regulatory requirements.
• Develop and maintain backend application logic primarily using Perl and Python.
• Optimize and coordinate PostgreSQL, MySQL, and MongoDB databases.
• Implement monitoring, logging, and alerting to support proactive fault management.
• Troubleshoot complex cross-domain issues (network, application, database, OS) and provide Tier-3 support for operations teams.
• Drive root-cause analysis (RCA), build permanent fixes, and enforce long-term reliability improvements after incidents.
• Assist in mentoring Tier-1 and Tier-2 support teams and support knowledge transfer.
• Prepare, maintain, and continuously update operational documentation.
• Plan and complete platform upgrades, migrations, scaling, and capacity improvements.
• Collaborate closely with IP network engineering, security, product, and infrastructure teams to improve customer experience and service delivery.

What You Bring

• Expert knowledge of RADIUS and strong understanding of DHCP and DNS or equivalent experience.
• Experience with TR-069/ACS and CPE lifecycle management.
• Familiarity with NBN integration, provisioning APIs, and ONT/GW activation flows.
• Advanced coding in Perl and strong scripting/development in Python.
• Experience integrating with REST APIs, XML/JSON services.
• Bash scripting and automation skills.
• Experience managing PostgreSQL and MySQL in a production environment, along with practical knowledge of MongoDB.
• Strong expertise with Linux server administration (RHEL).
• Knowledge of kernel networking, system tuning, performance optimization.
• Familiarity with load balancing, clustering, HA, failover technologies.
• Monitoring tools experience (Prometheus, Nagios, Grafana, ELK/Splunk optional).

Qualifications

• Bachelor’s degree in Computer Science, Network Engineering, Information Technology or equivalent experience.
• Minimum 5 years’ experience in large-scale or carrier-grade ISP environments.
• Exposure to containers (Docker/Kubernetes) is beneficial.
• Messaging systems (Kafka, RabbitMQ) is a plus.

Soft Skills

• Strong analytical and RCA (root-cause analysis) skills for critical systems.
• Excellent communication for cross-team collaboration and mentorship.
• Ability to detail complex systems clearly and maintain documentation standards within the field.
• Passion for automation, reliability engineering, and continuous improvement!

The good stuff…

• Competitive remuneration and colleague discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and outstanding shopping discounts with our retail partners.
• Flexible working arrangements with opportunities to work three days in the office, two days remote or home.
• Vibrant and collaborative office campus that includes cafes, convenience store, chill out zones, GP, post office, gym, and on-site childcare centre.
• Competitive leave policies, including additional 'Connected’ days to focus on culture, family, health, community, or whatever’s important to you.
• We support growing families with inclusive, carer-neutral paid Parental Leave of up to 16 weeks.
• Direct your own development and build future-ready skills with Optus U’s industry-focused micro-credentials, developed with La Trobe and Macquarie Universities.
• Build meaningful connections through colleague-led networks and diversity initiatives including Culture Connect, Elevate Women, Disability Network, and Express Yourself (LGBTQIA+).
• Put your wellbeing first with free access to counselling and support services, 24/7 — in-person, by phone, SMS, or video.
• Free Optus bus from Macquarie University Metro Station (every 6-8 minutes); morning and afternoon.

At Optus, we are strengthened by others and that means valuing diversity and saying ‘yes’ to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email AccessibleRecruitment@optus.com.au or call 1800 309 170.

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity

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