Top React Jobs in Sydney

The role involves designing, building, and deploying Generative AI solutions, contributing to data analytics, and engaging with clients to solve complex business problems.

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.

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.

Lead a software engineering team focused on data streaming products, driving architecture, mentoring engineers, and collaborating with product management.

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.

Build and ship end-to-end product features across frontend, backend, APIs and databases. Create customer and internal workflows (onboarding, accounts, payments, rewards, FX, KYC, risk), collaborate with product, design, mobile and AI teams, build internal tools and automation, and own production monitoring, debugging and iterative improvements post-release.

As a Senior Software Engineer, you'll innovate AI-first SaaS solutions and lead projects, mentoring junior engineers while collaborating in a flexible, supportive environment.

As a Software Engineer, you will develop innovative customer support AI solutions, working with an experienced team to create an AI-first SaaS product. Responsibilities include shipping code and owning challenging technical problems in a collaborative environment.

Lead design and ship the frontend architecture for a Portable Platform enabling React code to run across web, iOS, and Android. Own web implementations of shared components, guide the React Web to React Native migration, promote SSR and React Server Components where relevant, upskill hundreds of frontend engineers, and remain hands-on with code, design docs, and reviews.

Lead the frontend architecture for a portable React platform that runs on web, iOS, and Android. Design and ship web runtime implementations, guide the React Web → React Native transition, influence hundreds of frontend engineers through patterns, docs, and reviews, and remain hands-on with code, performance, SSR, and React Server Components.

Design, develop and maintain responsive web applications using .NET and modern front-end frameworks. Build accessible UIs, integrate RESTful APIs and backend services, collaborate with cross-functional teams, and follow Agile and CI/CD practices to deliver scalable, high-performance solutions.

Lead technical support engineering for enterprise customers: perform deep debugging across polyglot stacks, troubleshoot Sentry SDK implementations, build deterministic agentic support systems using MCP and Sentry APIs, and drive automation and product feedback loops. Act as technical lead for AI-enabled support tooling and liaise with product teams to prioritize platform fixes.

Design and develop complex software solutions for a banking platform, leading engineering efforts, and mentoring team members in a high-impact role.

Contribute to development and maintenance of MYOB Business SaaS platform through hands-on full-stack development, building scalable, secure systems, improving CI/CD pipelines, and collaborating with the team to protect performance and sensitive financial data.

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.

Full‑stack engineer responsible for designing, building, and delivering frontend and backend features, supporting microservices and React micro-frontends, improving Kubernetes/cloud infrastructure and DevOps, enhancing automated testing, and driving security, performance, and reliability improvements while participating in production support.

Full-stack engineer building and supporting frontend and backend systems, scalable microservices, React micro-frontends, and Kubernetes/cloud infrastructure. Improve automated testing, DevOps practices, security, performance, and participate in production support and platform improvements.

Design, build and maintain enterprise-grade web applications across front-end and back-end using React and .NET. Develop APIs and microservices, optimize performance, apply AI-assisted and low-code tools, participate in design and code reviews, provide third-level support, and collaborate with architects, analysts and business stakeholders.

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.

Design, build and support scalable full‑stack applications and microservices for high-volume, real-time payments. Contribute to portal development (Liferay), CI/CD and DevOps practices, testing, troubleshooting, and participate in rostered on-call production support.

Lead the adoption of a next-gen Tailwind+React component system, build Figma-to-production tooling, prototype adaptive and accessible interfaces, encode design standards into AI-assisted workflows, and align design and engineering through documentation and hands-on support.

Lead and develop engineering teams owning Zip's checkout platforms, APIs, SDKs and integrations. Drive technical strategy, delivery, architecture, resilience, security and use of AI to improve productivity while partnering with Product, Design and Commercial to increase merchant onboarding and customer conversion.

Lead technical NetSuite SuiteCloud implementations, designing scripted customizations and integrations, guiding architecture and data migration, driving UAT/SIT and admin enablement, mentoring junior staff, and providing post-go-live technical support and project technical leadership.

Lead development of lightweight SDKs, dashboards, and CI checks to monitor web performance (LCP, INP, CLS). Extend OpenTelemetry pipelines ingesting large-scale RUM data, build low-overhead metric collection libraries and no-merge-if-slower checks, and investigate performance regressions using DevTools and Lighthouse to drive high-ROI improvements.