Top React Jobs in Sydney

Build end-to-end trading workflow applications for options traders, spanning React frontends, backend services, APIs, distributed systems, real-time data pipelines, risk visualization, and click-trading tools. Partner with traders and quantitative researchers to create scalable, low-latency applications for pricing, execution, market data, risk management, and trading-engine operations. Improve the performance, stability, scalability, and usability of mission-critical systems while supporting new markets and products.

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.

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.

Develop and maintain full-stack SEO-driven applications for Microsoft Office products using Next.js, Contentful CMS, Azure Functions, and DevOps practices. Responsibilities include implementing features, contributing to designs and estimates, managing infrastructure and deployments, monitoring services through on-call support, improving security and performance, and collaborating with engineers, content creators, and designers.

Lead the architecture and development of secure, scalable SaaS products using TypeScript, React, Node.js, and AWS serverless technologies. Deliver production-ready AI features such as LLM-powered document processing, RAG, and intelligent assistants. Establish engineering standards, champion testing and CI/CD, mentor engineers, solve complex technical problems, and influence product roadmaps across engineering and product teams.

Lead, coach, and grow a software engineering team while overseeing delivery, technical quality, architecture, and code review. Partner with Product and Design to solve customer problems, manage technical trade-offs, and embed AI coding tools such as Cursor, GitHub Copilot, and Claude Code into engineering workflows. Drive modern engineering practices across cloud development, CI/CD, Agile delivery, and secure, high-quality software development.

Develop full-stack AI-powered applications and services using Python, Java, JavaScript, Svelte, cloud platforms, and modern AI technologies. Responsibilities include designing scalable backend and frontend systems, integrating LLMs, developing APIs and microservices, deploying to AWS or Azure, writing tested and maintainable code, supporting CI/CD and containerization, and collaborating on technical architecture and engineering practices.

Build and scale Blinq’s web experiences using React, TypeScript, Node.js, and GraphQL. Own customer-facing product features, collaborate with design and product teams, guide frontend architecture, improve performance, accessibility, observability, and testing, and contribute reusable UI systems for millions of users.

Build and maintain scalable React front-end applications and C#/.NET backend services. Collaborate with designers, product managers, and engineers; contribute to architecture; and ensure code quality, accessibility, testing, performance, and reliability. Support RESTful API and event-driven microservice integrations while delivering maintainable software through production deployment and continuous improvement.

Build and maintain scalable full-stack web applications for a greenfield, data-driven product using C#, .NET, React, Azure, and microservices. Collaborate with engineering, design, and product teams; contribute to architecture, testing, documentation, code reviews, mentoring, DevOps practices, CI/CD pipelines, and cloud infrastructure. Help establish reliable engineering practices within an agile, collaborative culture.

Build and enhance user interfaces with React and TypeScript, integrate APIs and backend services, and contribute to backend development. Collaborate with designers, product managers, and engineers to deliver user-focused features. Participate in code reviews, architecture decisions, testing, accessibility improvements, and efforts to ensure platform reliability, scalability, and maintainability.

Leads the design, development, and deployment of production-ready full-stack AI applications using React, Node.js, and AWS. Integrates LLMs, embeddings, agent frameworks, and unstructured data capabilities while implementing LLMOps workflows. Collaborates with product, data, AI, and architecture teams, mentors engineers, shapes technical standards, and delivers scalable, secure cloud architectures.

Design, build, test, and maintain full-stack features and services for Quantium’s Checkout AI product roadmap. Own components end to end, apply strong engineering and quality practices, collaborate with engineers and stakeholders, and solve complex technical problems. The role is backend-leaning, using Python and React, with an expectation of openness to AI-assisted development tools and practices.

Develops end-to-end full-stack features for the Customer Experience team. Owns complex frontend and backend initiatives, shapes service architecture, establishes engineering standards, improves reliability and efficiency, and collaborates with product, business, and customer stakeholders. Requires strong TypeScript, React, Node.js or NestJS, web architecture, API, database, microservices, DevOps, and cloud deployment expertise.

Build and maintain A/B and multivariate experiments in React, Next.js, and TypeScript. Configure experimentation platforms, feature flags, targeting, rollouts, and cleanup. Collaborate with data analysts to ensure accurate measurement, maintain performance and accessibility, and write automated tests. Help establish experimentation processes, identify future testing opportunities, and promote successful variants into production-quality code.

Build and maintain full-stack web applications and backend services using React, TypeScript, Java, and Spring Boot. Develop accessible, responsive interfaces, reusable components, REST API integrations, and microservices. Collaborate with cross-functional teams, optimize performance, troubleshoot incidents, support security and testing practices, and contribute to cloud-native platforms, CI/CD, Agile delivery, and AI-powered conversational experiences.

Build and maintain full-stack web applications and backend services for PUMA’s global digital ecosystem. Develop React and TypeScript interfaces, Java and Spring Boot APIs, microservices, and AI-powered conversational experiences. Collaborate with product, design, architecture, data, and engineering teams; optimize performance, accessibility, security, observability, and reliability; troubleshoot production issues; contribute to technical design and engineering standards; and mentor junior engineers.

Build and own the cloud and edge platform connecting autonomous drones, docks, and customers. Responsibilities include AWS infrastructure as code, backend and desktop applications, offline-first synchronization, OTA fleet updates, CI/CD, monitoring, alerting, video streaming, and reliable networking across remote cattle stations. The role is hands-on, Sydney-based five days per week, with regular domestic and potentially international field deployments.

Designs, builds, and operates scalable backend services for basket, cart, pricing, promotions, and checkout across omnichannel commerce platforms. Integrates SFCC with order, inventory, ERP, customer, product, and fulfillment systems. Leads technical design, architecture decisions, observability, performance, reliability, code reviews, engineering standards, and mentoring. Develops resilient, low-latency services supporting complex checkout journeys and uses AI-assisted tools to improve delivery and code quality.

Designs, builds, and maintains modern full-stack web applications, frontend features, backend services, APIs, and microservices. Leads technical delivery, architecture, performance, accessibility, security, observability, and cloud-native engineering initiatives. Collaborates with product, design, data, platform, and architecture teams; mentors engineers; supports production systems; and applies AI-assisted development and conversational commerce technologies.

Design, build, and operate scalable software across loyalty and rewards platforms. Develop AI-powered product capabilities and agentic engineering workflows, including coding-agent harnesses, reusable tooling, automation, and context management. Lead complex initiatives from technical design through production delivery while improving testing, CI/CD, observability, security, and reliability. Collaborate with senior engineers, influence technical practices, and balance engineering quality with startup delivery speed.

Develop and enhance website functionality using React, optimize system performance, design technical solutions, and independently break technical specifications into subtasks. The role also involves applying SOLID principles, understanding FRP and HTTP(S)/WS(S) protocols, implementing native UX/UI components, conducting code reviews, and working with TypeScript and RxJS.

Own the architecture and technical direction of Distru’s AI product suite. Build and operate production multi-agent systems, MCP integrations, contextual memory and unified data layers, evaluation frameworks, observability, reliability, and safe workflow execution. Establish engineering standards, prototype emerging agentic approaches, collaborate with customers and product teams, and influence roadmap and technical direction.

Build and maintain React and TypeScript operator consoles for AI runtime security products. Review and harden designer-authored code, develop shared design-system components, support data-dense dashboards, integrate GraphQL APIs, and own unit, integration, and end-to-end testing. Ensure accessibility, performance, responsive behavior, theme consistency, and secure live-environment validation. Collaborate across design and backend teams while establishing conventions and guardrails for AI-assisted development.

Build and operate infrastructure for evaluating coding agents and language models. Own end-to-end features across data models, APIs, background workers, and user interfaces; run sandboxed agent trials; develop scoring and task-quality systems; integrate models and benchmarks; optimize performance, concurrency, migrations, and reliability; and review code. The role requires independent ownership of production backend systems and hands-on LLM evaluation experience.