Top React Jobs in Sydney

Lead architecture and technical direction for Atlassian's design language and component platform. Drive scalable, accessible, high-performance solutions across packages, tokens, theming, and tooling. Collaborate with designers and product leaders, improve developer productivity via automation and AI workflows, de-risk rollouts, and mentor senior engineers to raise engineering standards and delivery quality.

Build end-to-end full stack trading applications for options: modern React frontends, distributed backend services (C++/Python), real-time data pipelines, trading and risk visualization, and tooling used directly by traders and researchers.

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.

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.

Customer-facing engineering role building and deploying AI-powered observability solutions. Ship backend and full-stack integrations, instrument telemetry, configure cloud/kubernetes deployments, and convert field learnings into reusable artifacts and product feedback.

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.

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.

The Senior Manager of Solutions Architecture will lead a team supporting pre and post sales processes, ensure technical excellence, and collaborate with sales leadership to grow business.

Design, develop, and maintain APIs and microservices in a cross-functional team. Apply agile, TDD, and CI/CD practices, monitor system reliability, resolve issues, and provide technical leadership and mentorship while ensuring high-quality software delivery.

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.

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.

Lead frontend architecture and cross-team initiatives for Canva's Photo group, improve rendering and performance, mentor senior engineers, collaborate with ML, PMs and designers, and contribute hands-on to critical technical projects.

The Senior Software Engineer will design, develop, and deploy scalable software solutions while mentoring junior engineers and collaborating with cross-functional teams.

Build high-performance, scalable React+TypeScript web applications for payment experiences. Design reusable UI components and optimize frontend performance while collaborating with cross-functional teams on architecture, testing, accessibility, and product delivery.

Build and ship high-quality React frontend features to improve the booking journey, run A/B tests and experiments, optimize performance, reliability and accessibility, integrate with microservices/REST APIs, use AI-augmented tools, contribute to CI/CD and testing, and mentor teammates.

Design and build an in-house fraud/risk evaluation platform as a senior full-stack engineer. Translate product requirements, review architecture, implement cross-stack services, own monitoring and alerting, and collaborate with stakeholders to deliver real-time decisioning capabilities.

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.

Develop and enhance high-performance applications and scalable cloud solutions using Java, Python or C++. Work with distributed systems, streaming platforms (Kafka, Spark, Hadoop), databases, RESTful APIs, microservices, CI/CD tools, and frontend frameworks (React/Angular/Redux). Collaborate across global teams, ensure security/compliance, and manage multiple projects in a fast-paced environment.

Join the API and Integrations team to build and maintain front-end focused full‑stack features using C#/.NET and JavaScript/TypeScript frameworks. Design, implement, test, and deploy reliable web APIs and interactive UIs, collaborate in agile teams, use data and AI tools thoughtfully, and own feature outcomes and operational quality.

Design, build, and deploy AWS-based solutions—particularly Amazon Connect CX platforms—develop Lambda integrations and CloudFormation, create data pipelines and QuickSight dashboards, troubleshoot incidents, and collaborate with cross-disciplinary teams to deliver secure, well-architected cloud applications.

Lead and grow a high-performing software engineering team to deliver building automation and video surveillance products. Drive technical vision, architecture, roadmap, cross-functional delivery, process improvements, and incident escalation while mentoring engineers and partnering with Product to meet customer and business goals.

Build the frontend layer of a portable React platform enabling a single React codebase to run on web, iOS, and Android. Lead the Web-to-React Native transition, implement web runtimes for shared components, support frontend upskilling, incorporate SSR and React Server Components considerations, and remain hands-on with design docs and production code.

Lead and deliver the Core Lending engineering stream as a player-coach: manage and develop engineers, stay hands-on in delivery, set technical direction, and work cross-functionally on credit decisioning, KYC/AML, open banking, and automation to reduce manual work.