Top Software Engineer Jobs in Sydney

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.

Build full-stack, low-latency trading and pricing tools for options traders. Collaborate with traders, researchers, and business stakeholders to design intuitive frontends and scalable backend services, prototype and productionize distributed systems, and expand trading capabilities globally while improving performance, stability, and usability.

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.

Design, develop, test, and deploy full-stack web applications and APIs to support investment management, portfolio operations, reporting, and business workflows. Build backend services, optimise SQL and database performance, integrate systems via APIs, contribute to cloud modernization, participate in architecture and code reviews, and improve application performance, security, and maintainability while collaborating with product and investment teams.

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.

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

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.

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.

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.

Build and own shared Go libraries and platform capabilities for data access, messaging, service communication, observability, resilience, and multi-cloud portability. Design adoptable APIs, implement resilience primitives, ensure security of dependencies, participate in architecture governance, consult with teams, operate libraries (on-call), and partner with Data Services, Infrastructure, SRE, and Observability teams.

The Senior Software Engineer will build scalable backend systems, contribute to full-stack development, collaborate on product features, and ensure code quality through reviews and CI/CD processes.

Develop full-stack web interfaces and backend architecture for neurotechnology applications; implement neural signal processing pipelines (EEG), integrate machine learning models for neurophysiological data analysis, maintain acquisition/processing software, participate in code reviews, document technical processes, and work independently within a small, research-driven startup.

First dedicated site reliability engineer responsible for owning reliability, observability, incident response, and platform decisions. Projects include improving uptime and RTO, hardening GPU clusters, implementing metrics/tracing/alerting and SLOs, and optimizing AWS infrastructure and cloud spend while enabling CI/CD and deployment pipelines.

Lead and deliver secure, scalable software solutions for Securities Services. Design, develop, review, and maintain production code and architecture; drive CI/CD, observability, automation, and AI-assisted engineering practices; mentor engineers; analyze large datasets to improve reliability and performance; evaluate vendors and integrate cloud-native technologies.

Lead engineer responsible for designing, developing, and maintaining secure, scalable payments production systems. Owns production troubleshooting, automation of recurring issues, code development and review, vendor evaluations, and driving engineering best practices across teams to improve operational stability.

Build and ship native Android features using Kotlin and modern Android architecture. Collaborate with product and design to create clean financial user journeys, integrate backend APIs, improve performance and reliability, use analytics and debugging to reduce crashes, and implement AI-assisted on-device experiences with TensorFlow Lite where beneficial.

Build and maintain integrations and connectors (including MCP-based AI connectors), evolve authentication/authorization and billing-related integration platforms, support webhooks, public APIs and ETL flows, collaborate with stakeholders and billing teams, and own features end-to-end with attention to enterprise-grade security and scalability.

As a Founding Engineer, you'll own core product and infrastructure decisions, building scalable software and transformative AI solutions for millions of users.

Assist in designing, developing, and testing software applications while collaborating with senior developers on various projects. Gain hands-on experience in software development and exposure to programming languages and tools.

The Software Engineer II will design, build, and deliver data-driven systems for digital advertising, working in a collaborative team to implement scalable technology solutions.

Hybrid full-stack role building web applications and legal content for criminal law practice management. Develop frontend (React/TypeScript) and backend services (Node.js/servers), APIs, authentication, document automation (forms, precedents, matter types), Word add-ins and Definable Table Apps using the Galaxy Design System. Collaborate with product owners, in-house criminal lawyers and content teams; apply TDD, CI/CD, and cloud (AWS) practices to design, test, deploy, scale, and maintain software.

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

Build and ship end-to-end full-stack features for the Learning Portal. Architect scalable systems, maintain cloud infrastructure (IaC), implement testing and CI/CD, perform PR reviews, be on-call, and drive product-quality improvements across frontend and backend services.