Top React 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.

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.

Support Vercel customers by resolving technical issues, handling community and enterprise requests, developing internal tools, completing engineering work, and improving documentation and processes. The role specializes in a product area, investigates root causes, and partners with engineering and customer success teams. It requires frontend development knowledge, cloud and serverless expertise, strong communication, technical writing, and availability for weekend and on-call rotations.

Leads full-stack software development teams, serves as a client-facing technical advisor, and guides projects from ideation through production. Designs pragmatic solutions using C#/.NET and React, champions TDD, pair programming, continuous delivery, DevSecOps, and infrastructure automation, and remains hands-on with coding. Mentors developers, translates business needs into technical requirements, establishes technical vision, and fosters an inclusive culture of continuous learning and improvement.

Build and own patient-facing platform components across the full stack. Lead complex technical initiatives, make data-informed architectural decisions, and deliver reliable capabilities from design through production. Collaborate with Product, Design, and Data, contribute to AI tooling, and improve testing, deployment, monitoring, and engineering standards. The role requires strong React and Next.js expertise, backend experience, AWS production operations, distributed systems knowledge, and event-driven architecture experience.

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.

Develop production-quality full-stack and integration solutions using C# .NET, TypeScript, Node.js, React, Next.js, React Native, and Tailwind CSS. Design REST APIs, build backend services and user interfaces, apply unit testing and hexagonal architecture, and contribute to AI-assisted or agent-based development approaches. AWS development, Git, dependency injection, and relevant education or certifications are advantageous.

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 scalable full-stack software for the Campaign Monitor product. Develop APIs, event-driven microservices, dynamic web applications, AWS infrastructure, and event-streaming solutions. Collaborate with designers, product managers, and engineers; contribute to architecture decisions, code reviews, mentorship, scoping, and long-term maintainability. Participate in on-call support and use data-driven instrumentation to improve system reliability and customer experiences.

Own DISCO’s end-to-end security program across application security, AWS infrastructure, identity and access, detection and incident response, compliance, and risk. Lead threat modeling, secure architecture reviews, vulnerability remediation, penetration testing, security baselines, monitoring, incident investigations, SOC 2 activities, and security roadmap development. The role partners with engineering, product, legal, and leadership while mentoring staff and strengthening security culture in a remote SaaS environment.

Lead full-stack feature development for Qantas Loyalty, writing high-quality React, TypeScript, Node.js, and Next.js software. Guide architecture and design decisions, identify and resolve code issues, apply automated testing and DevOps practices, and mentor other engineers. The role is permanent and based in Sydney, supporting customer-facing digital products across Qantas Loyalty’s retail businesses.

Provides L2/L3 application support for complex web-based and integrated production systems. Investigates incidents and service requests using SQL, logs, APIs, databases, and monitoring tools; manages issues through resolution within SLAs; communicates with clients; performs health checks; coordinates technical escalations; maintains documentation; supports users; and identifies automation and process improvements.

Own data science for an AI entertainment product, including event logging, product analytics, experimentation, A/B testing, model evaluation, customer journey analysis, and diagnosing user behavior changes. Translate ambiguous questions into actionable product decisions, measure outcomes, and continuously improve the product. The role requires technical fluency, product judgment, analytical rigor, clear communication, curiosity about AI, and end-to-end ownership.

Build and evolve payer-facing experiences supporting online invoicing, payment processing, and money movement workflows. Collaborate with developers, product managers, and UX designers to deliver secure, reliable customer experiences. Contribute to DevOps improvements, Agile delivery, technical vision, knowledge sharing, and high-quality software development using modern programming languages, cloud platforms, containers, and CI/CD tools.

Build full-stack customer onboarding and verification solutions for MYOB’s payment products. Develop KYC, KYB, risk assessment, approval, and operational review workflows; integrate activation, invoicing, and payment services; and contribute to the Azure migration. Improve engineering quality through automated testing, TDD, and CI/CD while supporting technical direction, mentoring, pairing, and code reviews. The role requires collaboration across engineering, product, and operations teams and includes exploring AI-assisted development practices.

Lead the evolution of a multi-brand design system across responsive web and React Native applications. Build WCAG-compliant components using React, Tailwind CSS, and shadcn/ui; manage design tokens; create AI-assisted code prototypes; collaborate with engineers through Git workflows; and facilitate workshops with product and delivery stakeholders.

Leads platform engineering initiatives delivering scalable cloud-native systems and AI-driven applications. Responsibilities include full software lifecycle execution, system design reviews, infrastructure and tooling development, ML framework integration, monitoring, and maintenance. The role mentors engineers, influences technical direction, collaborates cross-functionally on requirements, and drives continuous improvement across distributed systems and platform capabilities.

Design and develop customer-facing web and mobile solutions using JavaScript, React, and Guidewire’s Jutro design system. Lead architecture for single-page applications and digital services, collaborate with UX and cross-functional teams, support AngularJS-to-React migrations, apply automated testing and server-side technologies, mentor development teams, and participate in client implementation projects requiring onsite travel.

Build and maintain full-stack web products across frontend, backend, databases, DevOps, analytics, and third-party integrations. The engineer will implement features, fix bugs, improve infrastructure, monitoring, deployments, testing, and developer experience, and participate in on-call support. The role requires collaboration with product teams, proactive technical ownership, reliable production code, analytics-informed iteration, and fluency with AI coding tools. Senior candidates may additionally own architecture, technical strategy, and major projects.

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.

Leads the API and frontend engineering teams building Keet, a peer-to-peer messaging and video-calling app. Owns technical design, API architecture, performance, reliability, engineering standards, team delivery, and leadership development. Partners with product managers to scope and prioritize features, challenge assumptions, and translate product vision into buildable work. Requires strong product judgment, JavaScript and React expertise, and familiarity with distributed or local-first systems.

Own AI model development for a product area from user research and data preparation through fine-tuning, evaluation, deployment, and continuous improvement. Responsibilities include optimizing chat, image, video, voice, and real-time AI models for quality, latency, and cost at significant scale. The role requires strong product judgment, end-to-end ownership, experimentation, clear communication, and comfort working directly with founders in a fast-paced, in-person environment.

Own an AI product area end to end, from understanding user needs and building frontend and backend features to deploying and optimizing GPU workloads. Responsibilities include designing long-term memory, recommendation feeds, model evaluation and serving, and real-time chat, voice, image, and video experiences. The role requires accountability for product outcomes, reliability, cost, scale, experimentation, and on-call support.

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.

Build and ship trustworthy AI product features for Neara’s utility digital-twin platform. The role focuses on LLMs, agents, retrieval, tool use, evaluation, observability, guardrails, and human-in-the-loop workflows grounded in simulation and network data. You will work directly with utility customers, product and engineering teams to deliver production systems, establish AI development standards, and ensure outputs are traceable, safe, and engineering-grade.