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.

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.

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 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.

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

Join Elafent as a Graduate Software Engineer to create scalable and elegant software for our cloud SaaS platform. Work on various development areas, collaborate with a proactive team, and enjoy a healthy work/life balance.

The Senior Software Engineer will focus on application migration, leading projects and ensuring successful transitions to new environments.

Design, build and support scalable full‑stack applications and microservices for high-volume, real-time payments. Contribute to portal development (Liferay), CI/CD and DevOps practices, testing, troubleshooting, and participate in rostered on-call production support.

Build and operate shared backend services, APIs, integrations and data capabilities for Financial Services consumer experiences. Contribute across discovery, design, build, release, monitoring and incident response while improving platform ownership, service boundaries, reliability, security and engineering practices in a regulated environment.

As an Intern Software Engineer, you'll participate in software testing, execute test cases, report defects, and collaborate with the development team to enhance platform quality.

The Software Engineer will implement, configure and deliver AI solutions, focusing on integrations and conversational AI across the NICE CXone ecosystem, while ensuring quality and problem-solving in a collaborative environment.

Lead development of React Native + Expo mobile apps, design app architecture, build shared npm packages, ensure secure handling of financial data, integrate backend APIs, maintain telemetry and CI/CD, work with AI-assisted development (Claude Code/OpenSpec), and mentor other engineers.

Mid-level full-stack engineer building and maintaining .NET microservices, cloud-native solutions on AWS, and modern front-end UIs. Work includes API design, automated testing, CI/CD, containerised deployments, troubleshooting, and contributing to architecture, documentation, and team best practices within an agile product team.

Build and operate the companywide observability platform: ingest, store, and serve time-series metrics; implement distributed tracing pipelines and sampling; and create alert-quality tooling, dashboards, and routing to reduce noise and improve on-call signal for engineering teams.

Build and maintain backend services, APIs and workflows for a finance super app. Support payments, wallet, savings, investing and insurance products; design systems for accounts, transactions, partner integrations, reconciliation, notifications and operations; improve reliability, observability, security and performance; collaborate with product and mobile teams.

Build and ship native Android features for a finance super app using Kotlin. Create clean user flows for insurance, payments and financial services, integrate backend APIs, improve performance and reliability, use analytics and on-device ML to enhance UX, and collaborate with product and design.

Build and ship native iOS features in Swift for a finance super app. Design clean user flows for insurance and financial services, integrate backend APIs, improve performance and stability, use analytics and on-device ML where helpful, and collaborate with product and design to deliver high-quality production apps.

Build end-to-end customer-facing and internal features for BJAK’s finance super app: 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 reduce manual work via internal tools. Collaborate with product, design, mobile and operations, and support products across insurance, payments, savings, investing and travel.

Design, implement, and optimise autonomous navigation, motion planning, and decision-making for drones and ground vehicles. Integrate sensors, cameras, and edge compute with ML models, build simulators and hardware-in-the-loop tests, perform field validation, collaborate with hardware and ML teams, and produce technical documentation for deployment.

Design, build, test, maintain and support scalable payment applications. Implement cloud-native services, ensure integrations, create CI/CD pipelines, write unit tests, and document solutions following standards and best practices.

The role involves designing and building scalable systems for trade lifecycle management, maintaining data integrity, and collaborating on reporting pipelines, while also handling production support.