Top Software Engineer Jobs in Sydney

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

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.

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.

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.

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

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

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.

Design and build multi-tenant, high-scale embedded finance infrastructure. Lead cross-team initiatives, architect enterprise integrations, optimize for performance and reliability, and collaborate with Product, Design, Compliance, and Sales to deliver production-grade solutions used by global customers.

Lead development of internal AI-driven security tools and automation, support incident response with threat-hunting and remediation tooling, maintain Kubernetes/serverless infrastructure and large-scale log/ETL pipelines, identify automation opportunities with engineering teams, drive security outcomes (patching, gateways), and mentor junior engineers.

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 design and build of internal AI tooling and automation to improve security operations. Develop ad-hoc incident response and threat-hunting tools, maintain Kubernetes, serverless, and ETL/data pipelines, and partner with product teams to automate patching and risk-mitigation services. Own large-scale log pipelines, mentor junior engineers, and deliver high-quality projects autonomously.

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.

Lead end-to-end development of 0-to-1 fintech AI products, partnering with executives to design, prototype, and ship AI-driven features across backend and frontend, evaluate emerging AI technologies, and bootstrap scalable technical foundations for future teams.

Design and build high-integrity backend systems for the Yield investment product. Own end-to-end delivery of investment workflows, maintain financial infrastructure (reconciliation, ledgers, registries), ensure reliability and observability, integrate with external investment providers, and promote engineering best practices.

Design and develop scalable applications and support critical payment systems, collaborating with teams while participating in CI/CD practices and troubleshooting production issues.

The Software Engineer will design, implement, and support software for genomics research, focusing on API and web application development, plus DevOps deployments.

This role involves managing data collection for training AI models, integrating infrastructure, and collaborating with scientists to improve data quality and pipeline efficiency.

As a Software Engineer in Developer Experience, you will enhance development workflows by building infrastructure, tooling, and automation for efficient software deployment, collaborating with global teams to mitigate workflow friction and drive productivity improvements.

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.

Develop and maintain cloud-based SaaS products for school administration. Design and deliver new features, improve existing applications, ensure quality through testing, collaborate with stakeholders, and follow agile practices to build scalable, user-focused solutions.

As a Software Engineer in Data, you will design, build, and support data systems, create real-time data pipelines, and manage data workflows, collaborating across teams.