Top Software Engineer Jobs in Sydney

Forward Deployed Software Engineers work with clients to solve critical problems using data, employing strong coding skills in various programming languages to develop solutions.

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.

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.

Develop and maintain enterprise-grade C# and .NET applications, RESTful APIs, event-driven microservices, and distributed systems on AWS. Design PostgreSQL schemas, optimize queries, and support high-volume workloads across the full software development lifecycle. Collaborate with product owners and architects while meeting compliance, security, resiliency, and service-level requirements. Use and evaluate AI-assisted development tools responsibly for coding, testing, refactoring, documentation, and automation.

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.

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

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 systems, tooling, and deployment workflows to package, validate, and deliver Voyage embedding models across cloud providers and third-party environments. Improve model server performance, ensure deployment correctness and observability, debug cross-stack issues, and collaborate with model-serving teams and external partners for reliable production deployments.

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.

Build full-stack features, APIs, backend services, and frontend experiences for an AI legal risk management platform. Develop and structure risk insights delivered through MCP, integrate with LEAP’s AI ecosystem, and prototype LLM-powered capabilities. Contribute to architecture, reliability, observability, performance, and end-to-end feature delivery while collaborating closely with a startup-style team.

Design, implement, and deliver mission-critical low-latency trading systems in modern C++ on Linux. Build scalable services, participate in Agile development, design sessions, and code reviews, and collaborate with traders and quantitative researchers. Troubleshoot complex issues across teams while applying distributed systems, algorithms, data structures, object-oriented design, and multithreaded programming.

Build and enhance AI developer tooling and infrastructure (MCPs, AI-enabled CLIs, multi-agent orchestration). Research and evaluate 3rd-party AI tools, troubleshoot AI tooling across platform and product, document solutions, and collaborate with senior engineers to improve AI-powered SDLC workflows.

Build and extend security detection and remediation pipelines in Go and Python. Solve distributed-systems challenges involving deterministic pull-request checks, idempotent scan orchestration, and fair queuing across thousands of repositories. Deliver typed, tested, reviewed, and continuously deployed code that provides actionable fixes in engineers’ pull requests. The role requires strong programming fundamentals, production distributed-systems experience, sound engineering judgment, and curiosity about application security.

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.

Designs, develops, tests, and maintains secure, scalable software applications supporting HUB24’s core platform and digital capabilities. Responsibilities include resolving technical issues, contributing to system design and planning, maintaining documentation, participating in Agile ceremonies, meeting delivery and quality standards, and supporting continuous improvement. The role requires Microsoft .NET and web development experience, relational databases, CI/CD, automated testing, and collaborative problem-solving.

Build and maintain full-stack software for legal practice management applications. Responsibilities include developing responsive front-end applications with JavaScript or TypeScript, building C#/.NET backend services and APIs, integrating LLMs and emerging AI tools, collaborating on cloud deployments, contributing to architecture, writing tests, fixing bugs, and participating in agile delivery.

Own production reliability across Dataro’s React, Python, and AWS stack. Build observability, monitoring, alerting, SLOs, and error budgets; lead incident response, resolution, and blameless postmortems. Contribute to architecture decisions involving scalability, resilience, and disaster recovery, automate operational toil, and implement reliability fixes across backend and frontend code. Collaborate with engineering, product, and data science while supporting on-call operations.

Develop, test, deploy, and operate machine learning pipelines and AI products using Python, SQL, cloud platforms, and infrastructure-as-code tools. Build generative AI and traditional ML solutions, prototype proofs of concept, analyze data quality and coverage, and support dashboards and reporting. The role follows agile engineering practices, including test-driven development, continuous delivery, pair programming, and shared DevOps ownership.

Build, operate, and scale distributed cloud infrastructure and platform services used across Stripe. Focus on automation, reliability, observability, debugging production systems, and supporting internal customers. Participate in roadmap planning and incident response to maintain high availability and performance at scale.

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.

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

Build and ship full-stack features for the Learning Portal (Next.js UI, Go services, Supabase edge functions). Design scalable systems and infrastructure (IaC with SST/Pulumi, AWS, Vercel), implement testing (Vitest/Jest, Cypress/Playwright), perform PR reviews, maintain docs, run CI/CD, and be on-call to ensure reliable student-facing experiences.

The Full Stack Software Engineer will develop, integrate, and deploy AI technologies, focusing on building scalable web applications and ensuring a great user experience.