Top Software Engineer Jobs in Sydney

The Senior Options Software Engineer will design, develop, and support a high-performance trading platform, collaborating with business leaders to create innovative software solutions and handle complex systems support for trading activities.

As a Software Engineer Intern, you'll create tools for trading strategies, develop research platforms, and collaborate in small teams.

Build and maintain shared Go libraries and platform capabilities for data access, messaging, service communication, observability, and resilience. Design adoptable APIs, multi-cloud abstractions, and resilience primitives. Own security posture, operate libraries (on-call), consult engineering teams, participate in architectural governance, and collaborate with Data Services, Infrastructure, SRE, and Observability teams.

Forward Deployed Software Engineers work with clients to solve critical problems using data, employing strong coding skills in various programming languages to develop solutions.

As an FDSE Intern, you'll collaborate with teams to address complex data challenges, develop software solutions, and engage directly with customers to drive impactful results.

Looking for a Software Engineer to build scalable backend and APIs, collaborate on modernisation tools, and contribute to code analysis. Requires strong skills in Python/Java and relational data modelling.

Contribute to development and maintenance of the WiredTiger storage engine for MongoDB, focusing on enhancing performance, managing concurrency, and implementing new features.

Design and build reliable backend systems for the Yield investment product. Own end-to-end delivery of investment workflows, maintain financial infrastructure (reconciliation, ledgers), integrate with external providers, ensure observability and API quality, and collaborate with Product, Infrastructure, and Design.

Build and maintain front-end features with React and TypeScript, refactor legacy code, fix issues across the stack, collaborate with PMs and designers, conduct code reviews, mentor peers, improve developer experience, and drive performance, reliability, and security improvements.

Lead backend architecture and deliver core investment workflows for the Business Accounts platform. Build and maintain financial infrastructure (reconciliation, ledgers, unit registries), ensure high reliability and observability, integrate with external investment providers, write testable code, and collaborate with Product, Infrastructure, and Design.

Build and ship high-quality micro-frontend web applications using React and TypeScript. Implement Backend-for-Frontend patterns with Apollo GraphQL and Node.js, create shared design system components, publish NPM packages, deploy on GCP/Aliyun K8s with Cloudflare and GitLab CI/CD, and ensure test coverage using React Testing Library and Cypress. Collaborate with design and frontend guild to reduce technical debt and research new frontend technologies.

Lead architecture and deliver backend systems for Business Accounts, building investment workflows, reconciliation controls, unit registries, and ledgers. Ensure reliable integrations with external investment providers, promote observability and API design best practices, and collaborate with Product, Infrastructure, and Design to ship production-grade financial infrastructure.

Build and maintain full-stack features across a .NET/C# backend and React frontend. Design and consume RESTful APIs, write efficient SQL, implement automated tests, participate in code reviews, debug full-stack issues, and collaborate with product and design to deliver maintainable, production-ready software.

Design and build backend services, APIs and workflows for an AI neobank. Support payments, wallet, savings, investing, insurance and partner integrations. Ensure reliability, security, observability and performance. Collaborate with product, mobile and operations teams to deliver customer-facing journeys and regulated financial product infrastructure at scale.

Build end-to-end customer-facing and internal features for an AI neobank: web flows, backend APIs, admin tools, dashboards, and operational systems. Integrate APIs, handle data flows, improve production reliability, use analytics and feedback to iterate, and support products across payments, savings, investing, insurance and travel.

Design, develop, test and maintain secure, scalable software supporting the core platform. Troubleshoot issues, contribute to system design and documentation, participate in Agile ceremonies, and support CI/CD, automated testing and continuous improvement initiatives.

Build native Android features for BJAK's AI Neobank using Kotlin and modern Android tools. Integrate backend APIs, improve performance and reliability, collaborate with product/design, use analytics to refine UX, and implement on-device AI experiences where valuable.

Build and ship native iOS features in Swift for an AI-enabled neobank app. Design clean mobile flows for payments, insurance and financial services, integrate backend APIs, improve performance and reliability, use analytics and on-device AI where it enhances UX, and collaborate with product and design to simplify journeys.

Design, develop and maintain backend APIs for various services, optimize performance, and collaborate with teams for product strategy alignment.

Build and maintain scalable backend services and APIs in Java. Design and implement features, improve system performance and reliability, write tests and observability hooks, collaborate with product, design and frontend teams, and use AI tools to augment development. Expect mentorship and evolving responsibilities in a hybrid Sydney-based role.

Join Arista's EOS team to design, implement and test features for a network operating system. Work includes requirements gathering, writing design and test plans, coding in C/C++/Python, developing automated tests, debugging customer issues, and delivering high-quality, well-tested software for Ethernet switches.

Design and implement backend services using Elixir/Phoenix, contribute to architecture decisions, write production-ready code, and operate built components while collaborating effectively with product and design teams.

The Software Engineer will design, build, and deliver scalable software, support complex projects, and own system reliability while collaborating with the team.

Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.

The role involves software development, design, and testing for web, mobile, and cloud applications, focusing on test automation and collaboration with global teams.