Top Full Stack Developer Jobs in Sydney

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.

Join a small team to improve a tech product aimed at upskilling users in MENA, working with JavaScript and Node.js in a collaborative remote environment.

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.

Design, build and scale production-ready AI capabilities and applications using Python and modern cloud tech. Collaborate with cross-functional teams to deliver secure, observable, and responsible AI solutions, mentor engineers, drive architecture decisions, and ensure operational excellence across AI platforms.

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.

As a Full Stack Developer, you will manage end-to-end delivery of projects, participating in agile sprints, and developing features using a diverse technology stack. You will ensure technical quality, collaborate with stakeholders, and support client engagements.

Build and productionize real-time AI anime avatars: front-end creation and interaction flows, integrate voice/LLM/memory and image/video generation, develop APIs, queues, databases and observability, optimize rendering/latency/cost/safety, and rapidly iterate from prototype to production with product and design.

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 optimize customer-facing features with a frontend focus, owning end-to-end delivery. Work across the stack to implement APIs and data flows, improve performance and accessibility, debug production issues, and collaborate with product and design to ship high-quality, tested interfaces.

Lead architecture and delivery of scalable full‑stack SaaS: build React/Vue frontends, TypeScript/Node backend services, databases, and cloud-native APIs. Integrate production AI agents and automation, improve platform performance and observability, build developer tooling, mentor engineers, and own production reliability and incident response.

Build responsive web applications and scalable frontend/backend services, design secure APIs and databases, implement AI-powered search and asset management features, collaborate on system architecture, and optimize performance and UX for a cloud-native DAM platform.

Develop and enhance frontend components of React-based applications, optimize UI/UX, and collaborate on backend integration while participating in agile cycles.

Develop and maintain mobile applications using Flutter and Node.js for backend solutions. Collaborate with teams, optimize performance, and integrate APIs to deliver high-quality software solutions.

The Full Stack Developer will design and implement customer-focused solutions, enhance CX platforms, develop integrations, and troubleshoot issues in an Agile 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.

Build and optimize high-traffic, responsive web applications and hybrid in-app pages. Implement user-facing features, improve performance and scalability, and create libraries/frameworks to accelerate development and enhance code quality.

Design, build, and maintain customer-facing web applications across frontend and backend. Collaborate in agile teams, balance speed and quality, use data and AI tools to inform development, own features end-to-end, and improve system reliability and performance.

Develop, test, and deploy front-end and back-end features for a remote monitoring dashboard, ensuring high-quality code and performance optimization.

Design, build, and maintain Android-first client applications for an instant messaging platform. Implement real-time chat, media messaging, offline sync, push notifications, and performance optimizations. Collaborate on client architecture across Android, iOS, and Web, integrate APIs and real-time protocols, debug cross-stack issues (with AI tools), and mentor junior engineers at senior level.

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

Develop scalable web applications, integrating frontend and backend technologies. Oversee features from planning to deployment in a remote startup atmosphere.

Support the design and development of a web application platform, including UI/UX, API and database development, and testing. Work collaboratively as part of the development team while gaining hands-on technical experience.

Design and build cloud-native full-stack applications, own technical decisions and architecture, improve CI/CD/observability, lead incident response, mentor engineers, and drive adoption of AI-assisted engineering to improve quality and delivery.

The Full Stack Software Engineer will develop, integrate, and deploy AI technologies, focusing on building scalable web applications and ensuring a great user experience.

Build and maintain platform products, internal tools, and shared services across the stack. Develop frontends, backend services, APIs, CI/CD pipelines, observability, testing, and integrations. Collaborate on secure, scalable designs, support incidents, contribute documentation, and improve developer experience and platform consistency.