Top Software Engineer Jobs in Sydney

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.

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.

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.

Lead an agile team building low-latency, high-availability Python applications for Rates trading desks. Own architecture, design, production stability, monitoring, CI/CD, and incident response. Partner with traders, mentor engineers, drive technical decisions, remediate systemic issues, and promote secure, responsible AI-assisted engineering practices.

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.

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.

Build and maintain scalable, secure web systems used by schools. Write clean code across frontend and backend, collaborate with Product and Design, participate in sprint planning and technical design, improve CI/CD and monitoring, design database solutions, and champion engineering best practices.

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.

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.

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.

Join a small cross-functional product engineering team building Clipboard. Deliver well-scoped features from ticket to production, write and review tested code, use feature flags for incremental delivery, document decisions, work with AI tooling, participate in code reviews, and help triage production issues with support.

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.

Join a founding engineering team building a psychosocial safety platform. Work full-stack (SvelteKit frontend, Go backend, Postgres), deliver end-to-end features, improve UX, implement design system components, integrate third-party services, fix bugs from customer feedback, and ensure quality and ownership throughout the development lifecycle.

Design, develop, and deliver next-generation industrial automation software using AI and real-time systems. Collaborate with architecture, UX, R&D, and customers across the product lifecycle, perform code reviews, testing, performance optimization, and support global integrations to improve process control and automation outcomes.

Design, develop, and deliver next-generation software for Honeywell's industrial automation systems. Work across the SDLC on real-time, distributed, and AI-enabled control solutions, collaborate with cross-functional teams and customers, perform code reviews and QA, and support global R&D integrations and product introductions for industries like Oil & Gas, LNG, and Mining.