Top Software Engineer Jobs in Sydney

Build end-to-end full-stack systems (quoting, onboarding, installer tools, energy OS including billing, battery optimisation, trading & risk), integrate multiple APIs, work with high-volume time-series data, and leverage AI tooling and agent orchestration to deliver scalable, secure systems while collaborating with energy and product specialists.

Develop, maintain and support a modular satellite imagery platform. Extend and implement APIs, server-side rendered web interfaces, troubleshoot customer deployments, mentor developers, and collaborate with multidisciplinary teams to design and deliver new platform features and improvements for earth observation operations.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

Seeking software engineers with at least 2 years of production backend experience, interested in crypto and blockchain technologies, for roles with portfolio companies.

The Software Engineer will develop high-quality responsive UIs for web/mobile, conduct user research, optimize applications, troubleshoot issues, and conduct code reviews.

Design, develop, and maintain Azure and .NET integration solutions, including AI-enabled automation. Participate across the full software development lifecycle, support cloud applications, implement CI/CD and DevOps practices, produce technical documentation, and collaborate with stakeholders to translate business requirements into practical solutions.

Design and build backend microservices for real-time fraud detection, transaction monitoring, and risk analysis. Integrate ML models and risk scoring engines, support scalable distributed systems, and leverage AI-assisted development and LLM/agent tools for risk automation.

Join a product engineering team building a large-scale Cyber Risk Posture Management platform. Deliver customer-facing features end-to-end, improve system reliability, scalability, and performance, contribute to architecture and code reviews, and collaborate with cross-functional teams while exploring AI/LLM enhancements.

Build and improve core trading platforms and research infrastructure, collaborate with quantitative researchers and technologists, enhance scalability and performance of production systems, and increase team productivity as business expands into new markets.

Build and maintain full-stack Splunk applications and services that size cloud infrastructures. Lead UI improvements with React, develop backend services and APIs, design microservices, work with cloud (AWS/GCP/Azure), Docker, and Kubernetes, participate in on-call rotations, and collaborate on design and process improvements to improve team productivity and customer outcomes.

Design, develop, and maintain scalable web applications using .NET backend and Angular/React frontend. Collaborate on requirements, implement RESTful APIs, optimize performance, debug, maintain documentation, support end-users, and work within CI/CD and DevOps workflows.

Design, develop, customize and integrate Microsoft Dynamics 365 CRM/CE solutions. Build entities, forms, workflows, plugins, reports and dashboards using CRM SDK, C#, JavaScript, ASP.NET and SQL. Troubleshoot issues, estimate implementation approaches, collaborate with stakeholders, document solutions, and mentor junior developers. Banking domain experience preferred.

Design and lead frontend architecture and development for scalable, secure web UIs that integrate with embedded systems and cloud platforms. Build device provisioning, telemetry visualization, and remote management interfaces; optimize performance and accessibility; mentor engineers; collaborate across backend, hardware, and systems teams to deliver end-to-end solutions.

Design and develop scalable, secure frontend web applications for connected embedded systems. Lead frontend architecture, collaborate with backend/embedded teams, implement device provisioning, telemetry visualization, and remote management UIs. Optimize performance, accessibility, and maintainability; mentor engineers, participate in reviews, and drive frontend best practices.

Join Freelancer as a Full-Stack Software Engineer to tackle diverse engineering challenges across a global platform while building your skills in a meritocratic environment.

Join Escrow.com as a Senior Full Stack Software Engineer, tackling complex web applications and scalable features with diverse tech using Python, React.js, and AWS.

The Software Engineer will design and implement cloud-native applications, build APIs, work with databases, and collaborate with teams for innovative development.

As an Associate Software Engineer, you will build cloud-native applications, collaborate with engineers, participate in design and documentation, and enhance existing products.

We are seeking a software engineer to build and validate resilient distributed systems, enhance CI pipelines, and improve testing strategies for cloud applications.

The Software Engineer in Test III will develop and execute automated tests, maintain testing tools, analyze defects, and ensure product testability within TraceLink's software solutions.

Collaborate with teams to design, develop, and implement software solutions, ensuring code quality and deploying applications on Kubernetes and AWS.

The Backend Software Engineer will develop and maintain backend systems for data processing related to coffee farming, utilizing Python and PostgreSQL. Responsibilities include feature development, problem-solving, and adapting systems to regulatory changes while ensuring system resilience.

Work on the Growth team to rapidly design, build and iterate front-end experiments that validate activation ideas. Implement MVP tests, instrument analytics, choose the shortest technical paths, prioritize experiments, and ship quickly within an autonomous pod.

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.