Top React Jobs in Sydney

Design, build, and maintain scalable, high-performing frontend systems and user interfaces. Collaborate with engineers, designers, and managers to solve user problems; lead technical design, implementation, launches, code reviews, documentation, and complex fixes. Mentor engineers, contribute to frontend testing and release practices, and help deliver reliable software across Atlassian’s cloud product suite.

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.

Lead technical delivery and client-facing workstreams, guide and code with teams using TDD, CI, and DevSecOps; design pragmatic solutions, mentor engineers, and ensure high-quality continuous delivery from ideation to production.

Build and maintain Lumi’s lending, risk management, and customer service systems using TypeScript and React. Collaborate with engineering, product, design, and business teams; develop scalable and maintainable technical solutions; participate in code reviews and agile ceremonies; improve platform performance and reliability; and explore AI technologies that enhance customer outcomes, processes, and engineering productivity.

Own Dovetail’s marketing website end to end, from architecture and reusable components to high-quality responsive experiences. Build content systems, page-generation workflows, experiments, analytics, lead integrations, and AI-assisted tools. Improve performance, accessibility, SEO, reliability, testing, and deployment workflows while partnering with Marketing, Creative, Growth, and Engineering. This hands-on senior individual contributor will set technical direction, review code, document standards, and ship production fixes directly.

Serve as the hands-on technical lead for Canva’s Video Editor team. Guide technical direction, review designs, support project delivery, integrate a native video rendering engine, and help develop a video-specific data model. Own systems through launch, including monitoring, rollout, observability, and operations. Establish engineering standards through code review and mentoring while building complex interactive web applications with TypeScript and React.

Develop scalable full-stack software through hands-on coding, testing, debugging, and troubleshooting. Lead technical discussions, independently deliver medium-sized projects, improve engineering practices, and mentor junior engineers. Collaborate with product managers, stakeholders, and engineering teams while contributing to architecture, maintainability, and company objectives. The role primarily emphasizes backend development using Node.js, microservices, cloud services, CI/CD, TypeScript, GraphQL, WebSockets, Pub/Sub, PostgreSQL, and Elasticsearch, with frontend experience preferred.

Own and ship end-to-end product surfaces using Next.js/TypeScript and FastAPI/Python. Raise frontend quality, optimize performance for data-dense UIs (3D playback, time-series, maps), build mobile-friendly dashboards, and implement backend APIs, data models, and jobs. Iterate quickly with customers and own outcomes.

Build and maintain frontend performance monitoring SDKs, dashboards, CI/PR checks, data pipelines, and developer tools. Use OpenTelemetry and real-user data to identify performance regressions, statistically evaluate changes, and improve web performance at scale. Partner with platform and infrastructure teams, investigate bottlenecks with profiling tools, and communicate findings to technical and executive stakeholders while guiding engineering practices.

Lead the design, development, deployment, and operation of a Gen3-based research data platform on Google Cloud Platform. Responsibilities include coordinating single-cell omics and clinical-data ETL workflows, developing integrations with analysis tools, managing Kubernetes, Terraform/OpenTofu, and CI/CD infrastructure, gathering stakeholder requirements, contributing code and architecture decisions, improving developer tooling, and mentoring team members.

Design and execute manual and automated test strategies for Sentral and StudentPayPlus. Build and maintain Selenium-based frameworks, perform API and database testing (MSSQL, Cosmos DB), track defects, collaborate with product and development teams in Agile/CI/CD environments, and drive QA process improvements.

Build and maintain platform products, internal tools, and shared services across the stack. Develop frontends, backend services, APIs, CI/CD pipelines, observability, testing, and integrations. Collaborate on secure, scalable designs, support incidents, contribute documentation, and improve developer experience and platform consistency.

Design, develop, and support production-grade trading applications, APIs, distributed systems, web tools, deployment automation, and workflow platforms. Build scalable, observable, resilient software for traders, researchers, operations teams, and engineers. Collaborate with stakeholders, contribute to architecture, automate deployment and operational processes, and support systems across global production environments. The role emphasizes reliability, performance, maintainability, cloud technologies, and ownership throughout the software lifecycle.

Provides technical support for SharePoint, Microsoft 365, Office, Teams, OneDrive, Exchange Online, and Copilot. Responsibilities include investigating and resolving complex customer issues, troubleshooting identity, permissions, licensing, performance, and configuration problems, meeting support SLAs, documenting resolutions, escalating defects, and collaborating with engineering teams. The role also contributes to automation, readiness programs, mentoring, product improvements, and secure AI and Microsoft 365 configuration practices. Flexible evening and weekend shifts may be required.

Build and ship production-grade agentic AI systems, including multi-agent orchestration, RAG, memory, knowledge graphs, data pipelines, evaluation frameworks, observability, and safety guardrails. Translate customer needs into scalable technical solutions, collaborate with product and people science teams, and continuously improve AI performance, fairness, and reliability in production.

Owns target-state architecture for digital banking channels, including mobile and internet banking, digital onboarding, public websites, identity, content, integrations, and personalisation. Designs secure, scalable, resilient solutions using API-led, microservices, event-driven, cloud-native, and backend-for-frontend patterns. Establishes architecture standards, governs digital integrations, ensures regulatory and security compliance, and guides delivery teams. Partners with product, engineering, technology, and business stakeholders while mentoring teams and maintaining architecture documentation.

Build and maintain scalable full-stack solutions for MYOB’s SME onboarding and dashboard experiences. Contribute across the software development lifecycle, including design, coding, testing, deployment, monitoring, and optimization. Collaborate with engineers, architects, and cross-functional teams, use CI/CD and automation, apply AI-assisted development practices, and mentor fellow engineers.

Build and ship high-quality micro-frontend web applications using React and TypeScript. Implement Backend-for-Frontend patterns with Apollo GraphQL and Node.js, create shared design system components, publish NPM packages, deploy on GCP/Aliyun K8s with Cloudflare and GitLab CI/CD, and ensure test coverage using React Testing Library and Cypress. Collaborate with design and frontend guild to reduce technical debt and research new frontend technologies.

Lead and mentor engineers to design, build, and maintain scalable automation and onboarding systems. Implement AI/data-driven risk detection, collaborate with product/ops/compliance, drive architecture and reliability, and improve operational efficiency.

Provide advanced SharePoint technical support: investigate and resolve complex SharePoint Server and Online issues, advise customers, collaborate with engineering, mentor peers, and contribute to product and process improvements through diagnostics and automation.

Join a small cross-functional team to build a 0➜1 product. Work across the full stack from design to deployment, architect scalable infrastructure, implement engineering best practices, ensure security, reliability and performance, and collaborate closely with founders to rapidly deliver customer-focused features.

Work with a small engineering team to write, test, and ship production-ready code across front-end and back-end (React, Node.js). Collaborate with stakeholders, support QA, customer onboarding and deployments, learn from the Lead Engineer, and contribute to product features with autonomy in a hybrid startup environment.

Leads a compliance engineering squad’s technical execution, architecture, delivery quality, and engineering maturity. Responsibilities include decomposing complex requirements, making system design decisions, reviewing code and architecture, mentoring engineers, establishing testing and code-review standards, managing technical dependencies, supporting hiring and performance reviews, and aligning strategy with engineering leadership. The role focuses on scalable, cloud-native systems and requires strong full-stack development expertise across modern JavaScript technologies.

Build accessible interactions for Canva’s Editor, including focus management, keyboard navigation, live regions, and ARIA semantics. Use VoiceOver, NVDA, and JAWS to test and debug accessibility behavior. Collaborate with engineers and designers, review implementations, identify systemic accessibility gaps, and develop architectural solutions across a large frontend codebase. Guide teams on accessible development and co-design solutions with assistive technology users.