Systems Engineer

Singtel Group; Sydney; Hybrid; AUD 110,000 - 160,000; Full time

Benefits offered by this job

Colleague discounts

Flexible work arrangements

On-site facilities

Job summary

Optus is seeking a Systems Engineer to assist in delivering end-to-end solutions across the technology lifecycle, from development through to operations, while maintaining secure and scalable platforms.

You will collaborate with internal teams and external stakeholders, including government agencies, to support solution delivery, security assessments and continuous improvement through automation and modern engineering practices.

Qualifications

• Experience in systems engineering, infrastructure, or network engineering in regulated environments.
• Programming, software development and building web APIs experience.
• Knowledge of data networks, servers and storage with distributed systems exposure.
• Familiarity with cloud platforms (AWS, Azure, or GCP) to operate on-premises solutions.
• Strong communication and stakeholder engagement skills.
• Cybersecurity certifications are an advantage.

Responsibilities

• Assist senior engineers in delivering end-to-end solutions across the technology lifecycle, from development through to operations.
• Contribute to highly available, secure, and scalable systems, maintaining reliability of critical regulatory platforms.
• Partner with internal teams and external stakeholders, including government and law enforcement agencies, to support solution delivery and operations.
• Participate in security risk assessments and help maintain security architecture in regulated environments.
• Support continuous improvement through modern engineering practices, automation, and evolving technologies.

Skills

Systems engineering

API development

Networking & storage

Cloud platforms

Stakeholder communication

Cybersecurity certs

Education

BSc in CS/Engineering

Tools

AWS

Azure

GCP

Job description

Every day, millions of Australians connect, work, stream, and stay in touch on the Optus network. When it works seamlessly, it’s easy to take for granted. But behind it is a team making thousands of decisions every day - decisions that keep people, businesses and communities connected.

Right now, Optus is focused on getting the fundamentals right - simplifying how we work, lifting standards, and building a more reliable, resilient experience for our customers.

It’s not about surface-level change. It’s about how we make decisions, how we work together, and how we deliver.

As a Systems Engineer will be responsible for assisting other members of the team to support innovative technical solutions to address customer requirements and government initiatives through the solution’s life cycle.

The Day to Day

• Assist senior engineers in delivering end-to-end solutions across the technology lifecycle, from development through to operations
• Contribute to highly available, secure, and scalable systems, maintaining reliability of critical regulatory platforms
• Partner with internal teams and external stakeholders, including government and law enforcement agencies, to support solution delivery and operations
• Participate in security risk assessments and help maintain security architecture in regulated environments
• Support continuous improvement through modern engineering practices, automation, and evolving technologies.

What You Bring

• Experience in systems engineering, infrastructure, or network engineering, ideally within telecommunications or regulated environments
• Experience in programming, software development and building web APIs
• Knowledge of data networks, servers, and storage technologies, with exposure to distributed systems
• Familiarity with cloud platforms (AWS, Azure, or GCP) to assist in operating on-premises solutions using cloud-native patterns and contemporary tooling
• Strong communication and stakeholder engagement skills
• Relevant tertiary qualifications in Computer Science/Engineering; cybersecurity certifications are an advantage

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.
• 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. Join us for an outstanding career opportunity!

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 [e-mail] or call 1800 309 170.