Top Software Engineer Jobs in Sydney

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.

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.

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 enhance Engine by Starling’s banking platform and internal tools as part of a collaborative engineering team. Graduate engineers will develop configurable features and products, own projects, solve real-world technical challenges, contribute quality code, and learn through feedback. The role uses technologies including Java, JavaScript, TypeScript, Swift, Kotlin, Docker, Kubernetes, TeamCity, and AWS.

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.

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.

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.

Participate in a structured four-rotation graduate engineering program, learning the software development lifecycle and contributing to product features, quality, support, and AI/ML initiatives. Work in an agile environment while developing technical foundations, product knowledge, communication skills, and delivery discipline. Successful completion leads to a junior engineering role.

Build and maintain backend and frontend platforms supporting customer identity, engagement, billing, and subscriptions across Nine’s digital products. Deliver sprint work, contribute to solution design, improve engineering practices and tools, collaborate with cross-functional teams, communicate technical decisions, and resolve complex platform issues.

Own full-stack product features from problem definition through production using Elixir/Phoenix backend services and React/TypeScript interfaces. Establish engineering quality standards, design shared foundations, make squad-level architectural decisions, mentor engineers, and validate post-launch outcomes. Work on data-intensive, real-time logistics applications involving distributed systems, performance, observability, and event-driven workflows. Use coding agents, agentic prompting, and MCP tooling responsibly across the software development lifecycle.

Build and maintain full-stack features across Python services, databases, React front ends, and AWS infrastructure. Develop AI agents using a governed framework, apply AI tools to engineering work, and operate within banking governance, security, and risk requirements. The role also involves collaborating in a small engineering team, contributing ideas, solving problems, and working with data-related projects.

Build and operate scalable, highly available, low-latency APIs supporting scam detection, fraud prevention, and identity verification. Improve infrastructure and application delivery through automation, Infrastructure as Code, and CI/CD. Collaborate with product, data, customer success, and design teams to deliver backend capabilities, troubleshoot production systems, and contribute to technical standards and platform direction.

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.

Provides technical leadership for site reliability engineering across Walmart Data Ventures. The role establishes SRE standards, architects automation and observability frameworks, develops GenAI-powered agents and self-healing systems, and improves scalability, resilience, incident response, and operational excellence. Responsibilities include architecture reviews, CI/CD, testing, monitoring, debugging, cross-functional influence, and reducing incidents, mean time to resolution, and operational toil.

Build and maintain full-stack healthcare platform features using TypeScript, Next.js, Node.js, and Supabase. Design APIs, database schemas, and SQL queries; develop third-party integrations; deliver reliable systems connecting patients, clinicians, prescriptions, and support teams. Own work from planning through production, contribute to code reviews, identify technical risks, and collaborate with product managers to align technical solutions with business and patient needs.

Build and own end-to-end products for an AI-native electricity retailer. Responsibilities include product design, frontend interfaces, data modeling, backend architecture, security, resilience, and agent-driven development workflows. The role also involves processing metering, market, and weather data; shaping engineering foundations; collaborating with energy and go-to-market teams; and delivering reliable software in an evolving startup environment.

Design and develop scalable backend systems that automate satellite operations, process geospatial datasets, and support Earth observation missions. Responsibilities include maintaining APIs and web interfaces, implementing platform features, resolving customer issues, improving user experience, collaborating with stakeholders, and mentoring developers. The role requires backend architecture and distributed-systems expertise, with preferred experience in Go, geospatial intelligence, large-scale data processing, and server-side rendering.

Staff Software Engineer responsible for troubleshooting and optimizing mission-critical applications, Kubernetes infrastructure, databases, and cloud-native systems. The role develops software, automation, AI-assisted operational tools, monitoring, and CI/CD improvements; resolves production incidents; performs database tuning and root-cause analysis; and drives reliability, scalability, and operational excellence across enterprise platforms.

Supports a business-critical warehouse management system in a 24x7 environment. Responsibilities include application maintenance, upgrades, incident resolution, infrastructure and database administration, SQL performance optimization, monitoring, integrations, change and release management, vendor coordination, SOX compliance, disaster recovery testing, documentation, and continuous service improvement.