Top Software Engineer Jobs in Sydney

Build backend services and financial infrastructure connecting Airwallex business products, including cash, yield, lending, payments, and collections. Develop reliable financial workflows, reconciliation controls, ledgers, integrations, APIs, observability, and automated tests. Collaborate with Product, Infrastructure, Design, and engineering teams to deliver maintainable services from design through production while shaping the foundations of a new business accounts platform.

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.

Develop backend software for Atlassian products, independently driving projects from technical design through launch. Responsibilities include applying architectural standards, coding primarily in Java, reviewing code, fixing complex bugs, writing documentation, and mentoring junior engineers. Candidates need experience with a prominent programming language, strong data structures knowledge, collaboration skills, and a willingness to learn.

Develop and launch large, complex software projects, making architectural decisions and addressing high-risk technical challenges. Lead code reviews, documentation, bug fixes, and company-wide engineering initiatives. Collaborate across teams, mentor junior engineers, and apply expertise in one or more programming languages while developing Java proficiency. The role emphasizes autonomy, customer impact, continuous learning, and technical leadership.

Lead complex backend engineering initiatives from technical design through launch. Design architectures, deliver solutions used across teams and products, resolve high-risk issues, establish code review and documentation standards, and influence company-wide technical decisions. Mentor engineers, evaluate performance and reliability trade-offs, and contribute to developer experience and productivity using modern cloud platforms, multiple programming languages, and CI/CD practices.

Design, develop, deploy, and support AI-powered applications and services using generative AI, machine learning, cloud platforms, APIs, and data pipelines. Translate business needs into scalable architectures, optimize AI systems, troubleshoot performance issues, and incorporate security, privacy, governance, and responsible AI practices. Collaborate with technical and business stakeholders, evaluate emerging technologies, contribute to standards, and mentor team members.

Build and maintain cloud-native applications and services supporting data, analytics, and AI solutions. Develop scalable software using modern engineering practices, deployment pipelines, and cloud platforms. Collaborate with data engineers and data scientists to deliver reliable, observable, production-ready products. Contribute to architecture decisions, integrations, platform engineering, monitoring, performance optimization, and ongoing operations across dentsu and client cloud environments.

Build and maintain cloud-native applications and services supporting data, analytics, and AI solutions. Develop scalable software using modern engineering practices, deployment pipelines, and cloud platforms. Collaborate with data engineers and scientists to deliver reliable, observable, production-ready systems. Contribute to architecture decisions, integrations, security, cost optimization, monitoring, and performance improvements across development and production environments.

Build, test, and maintain backend services and APIs supporting Megaport’s global connectivity platform. Work with Java, Kotlin, Spring Boot, databases, messaging, caching, Kubernetes, and AWS. Translate business requirements into reliable technical solutions, collaborate with engineering and product stakeholders, participate in code reviews and mentoring, and improve architecture, processes, and technical debt.

Designs, develops, tests, deploys, and maintains secure, scalable GIS software applications across digital platforms. Translates business requirements into technical solutions, collaborates with stakeholders, supports releases, identifies delivery and quality risks, documents systems, and contributes to integration and architecture. The role requires hands-on GEV SmallWorld and GSS coding, full-stack development experience, modern web technologies, CI/CD with Kubernetes and Jenkins, and Scrum 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.

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.

Lead development of AI-powered information security tools, internal infrastructure, threat-hunting and remediation systems. Build and maintain Kubernetes clusters, serverless workloads, ETL pipelines, and large-scale log-processing infrastructure. Partner with engineering teams to automate security outcomes, support incident response, and reduce risk. Mentor software engineers and independently own technical roadmaps and project delivery.

Lead development of AI-powered information security tools, infrastructure, and applications. Build and maintain Kubernetes clusters, serverless workloads, ETL systems, and large-scale log pipelines. Develop threat hunting, remediation, security scanning, and patching automation tools while partnering with engineering teams to reduce risk. Mentor software engineers and independently deliver high-quality security projects.

Develop and deploy performance-sensitive C++ software for derivatives trading systems. Collaborate closely with traders and quantitative researchers to design trading logic, refine datasets and tools, and implement strategies for live Asian markets. Contribute to the architecture of distributed systems, test and ship production code rapidly, and own software throughout its lifecycle.

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.

Designs, develops, tests, and maintains secure, scalable software applications supporting HUB24’s core platform and digital capabilities. Responsibilities include resolving technical issues, contributing to system design and planning, maintaining documentation, participating in Agile ceremonies, meeting delivery and quality standards, and supporting continuous improvement. The role requires Microsoft .NET and web development experience, relational databases, CI/CD, automated testing, and collaborative problem-solving.

Build and maintain full-stack media features across backend, frontend, and mobile, including 360 walkthroughs, media integrations, and video upload, processing, transcoding, streaming, and playback. Collaborate with the Ground Capture group on future drone and hardware integrations. Translate camera and device specifications into practical solutions while owning ambiguous problems and communicating technical concepts to non-technical stakeholders.

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.

Own the design and delivery of complex software initiatives across frontend and backend systems. Build and maintain applications with Python/Django, Angular, and TypeScript; design APIs; manage testing, deployment, debugging, and operations; improve architecture and code quality; collaborate with Product and Design; conduct code reviews; mentor engineers; and apply AI technologies such as foundation models and agent workflows.

Leads development of scalable software features and AI/ML integrations across the full software lifecycle. Responsibilities include coding, system design, testing, CI/CD, debugging, code reviews, performance monitoring, stakeholder collaboration, technical requirements, and ongoing support. The role also mentors peers, promotes engineering best practices, and delivers Java- and Node.js-based services using REST and GraphQL APIs.

Leads development of scalable backend and platform capabilities across the full software lifecycle. Designs cloud-native systems, APIs, infrastructure, tooling, and ML frameworks; integrates AI/ML applications; conducts system design reviews; and ensures deployment, observability, and maintenance. Mentors engineers, influences technical decisions, collaborates with stakeholders, and applies data-driven practices to improve engineering productivity and product outcomes.

Develop custom customer integrations and provide Bubble.io guidance. Build and maintain Salesforce, HubSpot, and other CRM integrations; manipulate data with Python and Pandas; design AWS Lambda microservices; support client onboarding and collaborate with the development team to improve the platform.

Design, develop, test, and maintain scalable software applications and systems. Write high-quality code, solve complex technical problems, collaborate with product and engineering teams, participate in code reviews and debugging, contribute to system architecture, and improve engineering processes. The role requires strong software fundamentals, production-scale experience, and familiarity with Databricks, distributed systems, and cloud infrastructure.

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.