Senior Software Engineer

4 days ago

Sydney, New South Wales, Australia Kit Full time $120,000 - $180,000 per year

Introducing Kit

We're Kit, built by CommBank - an earning-and-learning, mindfully-spending, money-mastering app and prepaid card for kids.

We are a diverse team of product managers, designers, marketers, engineers, risk managers and customer service gurus. And we're working together to deliver the future of financial capability for young people living in Australia.

We're looking for smart people who think differently and want to create products that result in future generations of financially confident, capable and resilient citizens thriving in the new world of money.

The Role

We're looking for a
Senior Software Engineer
to help build and scale Kit's core backend systems.

You'll design and implement services and APIs that power our mobile app (which you'll also get a chance to work on) and internal tools, with a focus on performance, security, and maintainability. You'll work closely with fellow engineers, product managers, and designers to ship features that directly impact our customers - kids and their families.

This role is ideal for someone who loves backend development, thrives in cloud-native environments, and wants to contribute to a product with real social impact.

Our stack includes:

  • TypeScript-based
    serverless functions running in
    Azure
  • Hasura
    for GraphQL APIs and data access
  • PostgreSQL
    for data storage
  • React
    for internal portals (supporting teams using your APIs)
  • Flutter
    for our customer-facing mobile app

What You'll Do

Design and Build Scalable Systems

  • Develop, maintain, and optimise serverless backend services in Azure using TypeScript and
  • Design and evolve GraphQL APIs with Hasura to support new product capabilities and ensure smooth integration across clients.
  • Manage data models and schema evolution in PostgreSQL, with attention to performance and scalability.
  • Implement robust observability, testing, and CI/CD practices to ensure reliable, maintainable deployments.

Collaborate and Deliver

  • Partner with product and design teams to translate customer needs into reliable backend solutions.
  • Contribute to technical discussions, architecture reviews, and system design decisions.
  • Work closely with frontend and mobile engineers to define clear API contracts and enable great customer experiences.

Elevate the Craft

  • Champion clean, maintainable code and high engineering standards.
  • Participate in code reviews, pair programming, and internal knowledge sharing.
  • Identify opportunities for technical and process improvements within the backend domain.

Experience and Skills

  • Strong experience developing backend systems in , ideally within a serverless or microservice environment.
  • Deep understanding of cloud-based architectures, with experience in Azure Functions or similar (AWS Lambda, Google Cloud Functions).
  • Proficiency with GraphQL, particularly Hasura, and understanding of API design best practices.
  • Experience with relational databases (PostgreSQL preferred) and data modelling.
  • Familiarity with modern CI/CD pipelines, testing, and observability tools.
  • Excellent collaboration and communication skills across technical and non-technical stakeholders.
  • A continuous improvement mindset and passion for scalable, high-quality engineering.

Why Join Us?

  • Enjoy a flexible and dynamic startup environment
  • We nurture a safe space for our people to show up as they are
  • Competitive salary and bonus structure
  • Opportunities for professional growth and development
  • Access to the best in class benefits that CommBank offers.

  • Senior Software Engineer

    2 days ago

    Sydney, New South Wales, Australia Software At Scale Full time $120,000 - $180,000 per year

    Our 'black belt' specialists are leaders in their domains: digital champions, delivery-focused experts, top-tier security professionals, AI thought leaders, and engineering best practice advocates.With a global presence and local expertise, we deliver innovative solutions without compromising on quality. Our multidisciplinary teams provide tailored expertise...

  • Senior Software Engineer

    2 days ago

    Sydney, New South Wales, Australia l'Envol Full time $120,000 - $180,000 per year

    Role DescriptionThe Senior Software Engineer will be responsible for designing, developing, and delivering high-quality software solutions that meet business objectives and technical standards. This role involves taking ownership of complex projects, mentoring junior engineers, and contributing to architectural decisions that shape scalable and maintainable...

  • Senior Software Engineer

    4 days ago

    Sydney, New South Wales, Australia Anduril Industries Full time $150,000 - $200,000 per year

    About the TeamAnduril's Maritime Division has assembled a diverse team of experts in software, robotics, artificial intelligence, sensor fusion, and data analysis to create software and hardware solutions that radically evolve the capabilities of our customers. We are fielding the next generation of autonomous systems to tackle the extremely challenging...

  • Senior Software Engineer

    4 days ago

    Sydney, New South Wales, Australia Plenti Full time $120,000 - $180,000 per year

    Who is Plenti? Plenti is a fintech lender, providing faster, fairer loans by leveraging its smart technology. Plenti is a dynamic and innovative business that is growing strongly. By continuing to deliver better customer experiences, Plenti is taking market share from incumbent players in the personal lending, renewable energy, and automotive finance...

  • Senior Software Engineer

    2 weeks ago

    Sydney, New South Wales, Australia MyGig Australia | Work your way Full time $120,000 - $180,000 per year

    Company DescriptionMyGig is an AI-powered Workforce Management Platform (WFM) and Employer Of Record (EOR), offering the first true Workforce-as-a-Service (WaaS). We specialize in simplifying workforce management for businesses by handling everything from sourcing and onboarding to payroll and compliance. Our intuitive mobile app connects workers with...

  • Senior Software Engineer

    6 days ago

    Sydney, New South Wales, Australia Talenza Full time $120,000 - $180,000 per year

    Senior Software Engineer - Full StackThis newly created role offers the opportunity to work on a greenfields digital initiative and play a key role in their digital transformation, working alongside high-performing squads to deliver scalable full stack solutions - Multiple roles.Role:Senior Software Engineer - Full Stack Engineer - would also consider...

  • Senior Software Engineer

    4 days ago

    Sydney, New South Wales, Australia Rosewood Partners Full time $120,000 - $180,000 per year

    We are seeking a skilled and pragmatic Senior Software Engineer to join a growing insurtech startup. This is a pivotal role where you'll work directly with the founders to build enterprise-grade, scalable back-end systems, driving technical decisions and shaping the product's future. This is a unique opportunity to have significant impact and help scale a...

  • Senior Software Engineer

    2 weeks ago

    Sydney, New South Wales, Australia Embrava Full time $120,000 - $180,000 per year

    About EmbravaEmbrava is a leading provider of innovative workspace productivity solutions, including Desk Sign and Embrava DMS. Our mission is to create smart, intuitive, and user-friendly technology that enhances workplace efficiency and collaboration. We are looking for aSenior Software Engineerto join our team and help drive the development of our...

  • Senior Software Engineer

    4 days ago

    Sydney, New South Wales, Australia Sonitec Full time $120,000 - $180,000 per year

     About the roleThe company is seeking a Senior Software Engineer with C++ & Algorithm experience to join the Sensor Fusion AI Team in Sydney.Responsibilities, Duties and ExpectationsDrive the development of our Sensor Fusion engine to meet the most demanding operational requirements in real-world deployments and contribute to its architectural direction...

  • Senior C++ Software Engineer

    2 weeks ago

    Sydney, New South Wales, Australia ProFound People Full time $120,000 - $180,000 per year

    Senior Software Engineer – C++ / Embedded Linux | Sydney, HybridI'm looking for an experienced C++ Engineer who's passionate about building software in an IoT environment, connecting to devices. You'll be part of a tight-knit team developing the platform that powers next-gen IoT products used by millions of people around the world.This isn't just another...