Senior Engineer, Software Engineering

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

Help us build a scalable, language-agnostic Micro Frontend (MFE) architecture that supports multiple business segments and delivers seamless customer experiences. This is a hands-on senior role for someone who enjoys solving complex problems, writing highquality code, and driving customer-focused outcomes. 

What You’ll Do 

As a Senior Engineer, you’ll work across the full development lifecycle—leading initiatives, mentoring engineers, and collaborating with cross-functional teams. 
Our platform supports both React and Angular (with React as the primary framework). You’ll work on real-time systems (WebSockets), event streaming (Kafka), and GraphQL with BFF patterns, applying strong Postgres/database skills to make smart API and frontend data decisions. 

What You’ll Own 

• Build scalable, maintainable, secure applications 

• Lead development initiatives and partner with Architecture and Product 

• Promote secure coding, automated testing, and engineering best practices 

• Mentor developers and support strong engineering culture 

• Conduct code reviews and champion high standards 
  
  

What You’ll Bring 

• 10+ years JavaScript/TypeScript experience 

• Deep React expertise (performance, state management, accessibility) 

• Experience with MFE (SingleSPA/MFE) and modern UI performance techniques 

• Strong experience with GraphQL, BFF, and unit testing 

• Solid MongoDB/Postgres experience 

• Strong communication, problem-solving, and collaboration skills 

• AWS experience is a strong plus 
  
  

The Good Stuff… 
Competitive remuneration and employee discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and unique 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 employee-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. 
   

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. We're here to help. When you contact us, please advise your preferred method of contact and we will be in touch within 48 hours. 

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