senior java backend developer jobs in Sydney

Checkbox in Sydney is seeking a Senior Software Engineer focused on Backend Golang to build scalable services and empower our AI-enabled product platform.You will collaborate in a small cross-functional team, shaping architecture with Go, AWS, and REST-first design while delivering high-value features and practical solutions for customers.We value pragmatic...

At Atlassian in Sydney, we seek a Senior Software Engineer to own Teamwork Graph externalization, building API foundations and developer tools that power customer applications and AI agents. You’ll work with Product, Design, and other engineers to turn customer needs into scalable backend solutions, primarily in Kotlin and TypeScript.You will ship APIs,...

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance...

Most senior architecture roles in Australian financial markets sit in a Sydney tower. This one doesn’t have to. We’re looking for a hands on Senior Solutions Architect to shape the platforms behind equities trading, clearing and settlement across Australia based in Perth, Sydney Melbourne or Brisbane. You’ll own the design of our biggest solutions...

Solution Designer - JAVA/Angular - 6 Month contact - Sydney - $850pd - $950pd As a Senior Solution Designer, you will translate business and project requirements into technology solutions, working between architecture and delivery teams. You will own solution design from concept through to implementation, guide squads, engineers and tech leads through...

About the roleCollaborate with our producers, designers, and developers to create engaging, polished interfaces.Build modern frontends using React, Next.js, and Sanity.Balance ongoing client engagements with exciting new project work.Run client WIPs and provide development updates via Slack and virtual meetings when needed.Contribute to code reviews and...

Job Description Senior Software Engineer – Java | Payments Platform Sydney or Melbourne | Permanent If you're the type of engineer who enjoys solving complex distributed systems problems, influencing technical direction, and building software that operates at genuine scale, this is worth a look. We're partnering with one of Australia's leading technology...

Job Description /n Introduction/n /n /n Why Blueberry?/n Every customer journey starts somewhere. At Blueberry, that first impression isn't just about great design. It's about building fast, secure, and seamless digital experiences that turn visitors into active traders. /n As a Senior Engineer in our Acquire squad, you'll help shape every stage of that...

IT Alliance is seeking a Senior Integration Developer to design, develop and support API-led and event-driven integrations in Canberra and Sydney. You will work across teams to implement REST/OpenAPI specifications, API gateways and messaging patterns.The role emphasizes CI/CD, automated tests, DevSecOps, observability and containerised deployment with...

About usNylon is the AI research platform for tax and law professionals.The tool practitioners reach for when the answer has to be right. We’re used by 2,000+ firms across NZ, AU and the UK, backed by Blackbird, and expanding fast beyond research into the wider workflow professionals live in: client meetings, documents, the tools firms already use.The...

At PwC, Technology enables businesses to achieve their tech-driven goals. The work undertaken covers a range of areas from leading and supporting the firm through the build or adoption of new technology, to protecting against risk, and delivering valuable data insights that transform tech capabilities. As a Senior Full Stack Developer in the Tax and Legal...

About the job Senior Backend Software EngineerThis is a 12 month contract opportunity for an experienced Backend Engineer to join a major Australian Bank, locatin in Sydney's CBD.Duration: 12 monthsLocation: Sydney NSWStart: ImmediateWere interested in hearing from people who have:Technical skills spanning the full stack, with an emphasis on the backendA...

5 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. List of accepted countries and locations Help train large-language models (LLMs) to write production-grade code across a wide range of programming languages: Compare & rank multiple code snippets , explaining which is best and why. Repair & refactor...

​The Trade Desk is a global technology company with a mission to create a better, more open internet for everyone through principled, intelligent advertising. Handling over 1 trillion queries per day, our platform operates at an unprecedented scale. We have also built something even stronger and more valuable: an award-winning culture based on trust,...

AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely...

Synechron is a global technology consulting firm that helps leading organisations accelerate digital transformation through innovation, expertise, and agility. With more than 16,500 professionals across around 60 offices in over 21 countries, we combine deep industry knowledge with advanced capabilities in AI, cloud, cybersecurity, and data engineering.Our...

A leading federal department is looking for for a Senior Oracle Fusion Middleware DeveloperRole Type - 12 months contract with 24 months extension optionLocation - ACT & Hybrid with first 6 weeks onsite as mandatoryAustralian citizenship is mandatory ( Preference for people who already hold Baseline clearence)2+ years of demonstrated experience as an Oracle...

12 month contract opportunityStart - ASAPLocation - Sydney (hybrid)Opportunity to work with one of the largest and most advanced Data Engineering teams in the countryAs a Senior Data engineer with expertise in software development / programming and a passion for building data-driven solutions, you're ahead of trends and work at the forefront of Big Data...

Job Description Hello Molly is seeking an experienced Senior Software Engineer to join our Engineering Team. Reporting directly to the Head of Engineering, this role will contribute to the design, development, modernisation and integration of the software systems supporting our growing e-commerce operations. Our technology environment includes...

XPT Software Australia Pty Ltd | ContractSydney, Australia | Posted on 08/11/2026XPT SoftwareAustralia PTY Ltd, incorporated in 2016, is a Software Services companyXPT works with topclients across Australia in Banking, Insurance, Telecom,Retail, Energy, Mining and Manufacturingdomains.We have 120+technocrats in Australia working at our clientlocations. XPT...