Top Software Engineer Jobs in Sydney

Design, build, and maintain frontend products, platform services, infrastructure, microservices, libraries, tools, and applications powering Atlassian Cloud. Develop scalable, low-latency systems using modern web architectures and distributed systems principles. Implement, integrate, tune, test, and troubleshoot software while collaborating with designers and engineers in an agile environment to improve user experiences.

Develop backend software for Atlassian products, independently driving projects from technical design through launch. Responsibilities include applying architectural standards, coding primarily in Java, reviewing code, fixing complex bugs, writing documentation, and mentoring junior engineers. Candidates need experience with a prominent programming language, strong data structures knowledge, collaboration skills, and a willingness to learn.

Develop and launch large, complex software projects, making architectural decisions and addressing high-risk technical challenges. Lead code reviews, documentation, bug fixes, and company-wide engineering initiatives. Collaborate across teams, mentor junior engineers, and apply expertise in one or more programming languages while developing Java proficiency. The role emphasizes autonomy, customer impact, continuous learning, and technical leadership.

Lead complex backend engineering initiatives from technical design through launch. Design architectures, deliver solutions used across teams and products, resolve high-risk issues, establish code review and documentation standards, and influence company-wide technical decisions. Mentor engineers, evaluate performance and reliability trade-offs, and contribute to developer experience and productivity using modern cloud platforms, multiple programming languages, and CI/CD practices.

Build scalable backend and frontend services for MongoDB’s application modernization platform. Develop APIs, data pipelines, code analysis tools, dependency graphs, and schema recommendation features. Collaborate with product, engineering, and design teams; contribute to architecture, testing, CI/CD, code reviews, troubleshooting, and technical documentation. Senior engineers will mentor teammates, lead complex feature design, and support recruiting and interviewing.

Lead development of AI-powered information security tools, internal infrastructure, threat-hunting and remediation systems. Build and maintain Kubernetes clusters, serverless workloads, ETL pipelines, and large-scale log-processing infrastructure. Partner with engineering teams to automate security outcomes, support incident response, and reduce risk. Mentor software engineers and independently own technical roadmaps and project delivery.

Lead development of AI-powered information security tools, infrastructure, and applications. Build and maintain Kubernetes clusters, serverless workloads, ETL systems, and large-scale log pipelines. Develop threat hunting, remediation, security scanning, and patching automation tools while partnering with engineering teams to reduce risk. Mentor software engineers and independently deliver high-quality security projects.

Graduate Software Engineer responsible for designing, developing, maintaining, testing, and supporting software applications and platforms. The role involves building customer-focused features, collaborating with Engineering, Product, and Operations teams, participating in Agile ceremonies, troubleshooting services, and applying software engineering best practices. A structured graduate pathway provides mentoring, professional development, workshops, networking, and clear growth milestones.

Graduate Software Engineer role designing, developing, maintaining, testing, and supporting software applications and platforms. The position involves building scalable features, troubleshooting systems, participating in Agile ceremonies, collaborating with stakeholders, and following a structured development pathway with mentoring and professional development. Candidates should have a recent Computer Science or Software Engineering degree, exposure to Golang, Java, or Python, object-oriented programming knowledge, strong analytical skills, and enthusiasm for continuous learning.

Develop and deploy performance-sensitive C++ software for derivatives trading systems. Collaborate closely with traders and quantitative researchers to design trading logic, refine datasets and tools, and implement strategies for live Asian markets. Contribute to the architecture of distributed systems, test and ship production code rapidly, and own software throughout its lifecycle.

Build and maintain AI-powered applications, agentic systems, intelligent workflows, and supporting services. Develop full-stack solutions with TypeScript, Node.js, React, AWS, databases, and event-driven technologies. Contribute to architecture, testing, deployment, debugging, code reviews, and production improvements while collaborating with product and engineering teams. The role emphasizes practical AI implementation, ownership, iterative delivery, and emerging AI technologies.

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 media features across backend, frontend, and mobile, including 360 walkthroughs, media integrations, and video upload, processing, transcoding, streaming, and playback. Collaborate with the Ground Capture group on future drone and hardware integrations. Translate camera and device specifications into practical solutions while owning ambiguous problems and communicating technical concepts to non-technical stakeholders.

Build and enhance Engine by Starling’s banking platform and internal tools as part of a collaborative engineering team. Graduate engineers will develop configurable features and products, own projects, solve real-world technical challenges, contribute quality code, and learn through feedback. The role uses technologies including Java, JavaScript, TypeScript, Swift, Kotlin, Docker, Kubernetes, TeamCity, and AWS.

Build and maintain greenfield full-stack web applications for legal practice management software. Responsibilities include frontend development with React, backend API and service development, scalability, secure authentication, code refactoring and debugging, architecture decisions, automated testing, and improving software delivery practices. The role collaborates with product owners, legal experts, and client operations throughout the software development lifecycle.

Design, build, test, document, and maintain secure, scalable software components and APIs for digital identity verification. Work across the full software development lifecycle, contribute to application architecture, maintain automated tests, support CI/CD and infrastructure automation, use AI development tools, and collaborate with product, security, QA, operations, and customers to deliver reliable solutions and resolve integration issues.

Develop full-stack product features using Java and React, build microservices and micro-frontends, and contribute to Kubernetes, cloud, DevOps, testing, security, performance, reliability, and production support. Collaborate with global cross-functional teams throughout the software development lifecycle while using modern delivery practices and AI-assisted development tools.

Participate in a structured four-rotation graduate engineering program, learning the software development lifecycle and contributing to product features, quality, support, and AI/ML initiatives. Work in an agile environment while developing technical foundations, product knowledge, communication skills, and delivery discipline. Successful completion leads to a junior engineering role.

Build and maintain backend and frontend platforms supporting customer identity, engagement, billing, and subscriptions across Nine’s digital products. Deliver sprint work, contribute to solution design, improve engineering practices and tools, collaborate with cross-functional teams, communicate technical decisions, and resolve complex platform issues.

Own full-stack product features from problem definition through production using Elixir/Phoenix backend services and React/TypeScript interfaces. Establish engineering quality standards, design shared foundations, make squad-level architectural decisions, mentor engineers, and validate post-launch outcomes. Work on data-intensive, real-time logistics applications involving distributed systems, performance, observability, and event-driven workflows. Use coding agents, agentic prompting, and MCP tooling responsibly across the software development lifecycle.

Develop and maintain cross-platform consumer mobile applications using React Native, TypeScript, and JavaScript. Build reusable components, integrate REST and GraphQL APIs, optimize performance, implement testing and monitoring, resolve production issues, support CI/CD releases, and apply accessibility and usability principles. Collaborate with product, design, QA, and engineering teams in an Agile environment while contributing to code reviews, architecture, experiments, and continuous improvement.

Develop and maintain automated tests for frontend applications, backend services, REST APIs, and GraphQL APIs. Execute functional, regression, integration, and end-to-end testing; validate APIs with Postman; document defects in Jira; and collaborate with development, product, and QA teams. The role also supports test data, environments, CI/CD quality checks, code reviews, test planning, and continuous improvement of quality processes.

Develop and modernize TimeBase legislation systems, including Perl modernization, source code and data migrations, cloud and infrastructure migration, CRM consolidation, SSO, observability, and compliance initiatives. Collaborate with distributed technology and delivery teams, document architecture and migration procedures, support legacy decommissioning, and communicate risks and dependencies. The role also contributes to Westlaw and other Thomson Reuters content platforms.

Build and maintain Turso’s open-source database and cloud platform. Responsibilities include advancing PostgreSQL compatibility, ensuring software correctness through testing and verification, operating cloud APIs and data planes, and scaling systems to support substantially more databases. The role involves Rust development, embedded database technology, large-scale cloud operations, observability, reliability, performance improvements, and collaboration with customers, open-source communities, and distributed teams.

Build and maintain full-stack healthcare platform features using TypeScript, Next.js, Node.js, and Supabase. Design APIs, database schemas, and SQL queries; develop third-party integrations; deliver reliable systems connecting patients, clinicians, prescriptions, and support teams. Own work from planning through production, contribute to code reviews, identify technical risks, and collaborate with product managers to align technical solutions with business and patient needs.