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.

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.

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.

Build end-to-end analytics experiences for Linktree creators, spanning event instrumentation, ingestion, aggregation, GraphQL APIs, React interfaces, and social platform integrations. Improve data quality, attribution, reliability, performance, and observability while incorporating AI into development and product features. Partner with product, design, and data teams to prioritize metrics and mentor peers.

Leads the technical architecture and hands-on full-stack engineering for Nine’s AI-powered digital archive products. Designs scalable cloud-native applications, data pipelines, integrations, and secure high-availability systems. Establishes CI/CD and infrastructure standards, mentors engineers, manages technical roadmaps, coordinates reliability and on-call practices, and serves as the escalation point for complex technical issues and stakeholder collaboration.

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.

Build and deploy customer-facing AI-powered solutions for LogicMonitor Edwin AI. Develop backend services, integrations, automations, and lightweight frontend experiences using Python, Java, JavaScript, TypeScript, and React. Implement APIs, telemetry pipelines, dashboards, cloud deployments, and observability workflows. Support prototypes, production rollouts, troubleshooting, and customer adoption while contributing reusable engineering patterns and product feedback.

Design, build, and operate production conversational AI and generative AI features, including intelligent agents, AI coaching, and real-time Copilot experiences. Develop React frontends, Node.js/TypeScript and Java backend services, API integrations, and WebSocket functionality. Implement AI evaluation, testing, monitoring, guardrails, latency measurement, and prompt regression testing. Collaborate with product, architecture, UX, and platform teams to deliver secure enterprise-scale solutions.

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 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.

Build and scale Supabase Storage across client libraries, CLI, CDN, storage servers, and deployment infrastructure. Responsibilities include improving upload and download performance, asset optimization, edge networking, caching, observability, reliability, APIs, developer tools, and the storage explorer. The role also involves PostgreSQL and distributed-systems performance tuning, infrastructure operations, escalated support resolution, and end-to-end project ownership in an asynchronous, remote, open-source environment.

Lead a team of eight frontend and backend engineers building engagement, billing, invoicing, payments, and collections capabilities. Responsibilities include hiring and developing engineers, improving technical quality and delivery speed, guiding architecture and migrations, owning reliability and observability, and partnering with Product and technical leaders. The role requires strong distributed-systems knowledge, data-integrity expertise, and effective communication across globally distributed teams.

Design, build, and maintain scalable software for Domain’s commercial real estate platform. The role involves developing production-grade applications and services, contributing to architecture and technical direction, improving performance and reliability, delivering tested features, and mentoring engineers. The engineer will collaborate with Product, Design, and Engineering teams while working primarily with .NET/C#, AWS, React, Next.js, TypeScript, relational databases, and distributed systems.