senior java software engineer jobs in Sydney

WHO WE ARE Optiver is a global market maker founded in Amsterdam, with offices in London, Chicago, Austin, New York, Sydney, Shanghai, Hong Kong, Singapore, Taipei and Mumbai. Established in 1986, today we are a leading liquidity provider, with close to 2,000 employees in offices around the world, united in our commitment to improve the market through...

About AirwallexAirwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 675,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own.We started in Melbourne in 2015...

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s...

This is a contract opportunity for an experienced iOS Engineer. The role is based in a major bank in Sydney's CBD. Duration: 12 months Location: Sydney NSW Essential: Proven track record of developing robust and secured enterprise native iOS applications with Swift and SwiftUI Roles & Responsibilities:The Senior Software Engineer (iOS) role provides...

About Us:ClearRoute is an engineering consultancy bridging Quality Engineering, Cloud Platforms and Developer Experience. We help enterprises reliably bring high-impact digital products to market faster, cheaper, and safer, working with technology leaders facing complex business challenges.We take as much pride in our people, culture and work-life balance...

Build and ship systems that automate satellite operations, process vast geospatial datasets, and support real-world missions. We're looking for a motivated senior back end software engineer who is genuinely excited about building technology that transforms how we observe our planet from space. This is not your average tech role. You'll design and deliver...

SecuritEase International is seeking a Senior Software Engineer to join our remote-first fintech team in Australia. You will design and build scalable back-end services using Java/Spring Boot, work with Kafka, databases, and implement testing and observability.Join a global, busy team delivering cutting-edge fintech data pipelines and scalable microservices...

We continually strive to help our workforce achieve their professional and personal goals, engaging them in challenging and inspiring projects.The Software Engineer will design, develop, and support advanced software systems for space telescope and laser platforms within EOS's Space Systems division. This role focuses on delivering high-performance,...

Senior Software EngineerRemote | AustraliaFull-timeDescriptionAbout UsWe're looking for an experienced Senior Back-End Engineer with deep Java and Spring Boot expertise to help us build scalable, robust microservices and data pipelines for our next-generation fintech platform.What you'll doDesign, build, and maintain highly scalable back-end services using...

EOS Group's Space Systems division seeks a Software Engineer to design, develop, and support high-performance software for space telescope and laser platforms. You will work across the full software lifecycle, collaborating with multidisciplinary teams to deliver reliable, scalable solutions for mission-critical observatory applications.With 3+ years of C++...

About Us:At Fitness Passport, we are driven by a clear purpose — to make fitness more accessible, so more people can lead active and healthier lives. Established in 2006, we’re a corporate health and fitness program partnering with the public sector, corporate employers, and leading fitness facilities across Australia and New Zealand, providing members...

About VivCourt We’re VivCourt, a Trading firm like you’ve never seen before. We use our smarts and leading-edge technology to trade on financial markets worldwide, but we're saying no to how it’s always been done. We’re showing the industry it’s possible to make money and put people first. Everything we do at VivCourt is designed to help you be...

About Us Our mission is to safeguard critical space infrastructure by providing the first integrated security platform to see threats, decide fast and respond at scale. Where spacecraft have traditionally been costly, slow to produce and require extensive effort to coordinate, SMC is developing systems that are produced at scale and operated with...

About Us Lorikeet is redefining what customer support looks like — and we're just getting started. We build AI that handles complex, high-volume support for fintechs, healthtechs, marketplaces, and delivery services. Not chatbot-tier AI. The kind that actually resolves tickets, gives support teams their time back, and raises the bar for what software can...

Senior Full-Stack Software EngineerContract · Fully Remote · GlobalAnnual Compensation Equivalent: $104,000–$208,000/yearHourly Rate: $50–$100/hourApproximately 15 hours per week · Flexible scheduleAbout the RoleThis contract role is for highly experienced Full-Stack Software Engineers who can work confidently across front-end and back-end systems....

We are looking for a talented and motivated Software Engineer to design, develop, test, and maintain high-quality software applications. You will work closely with product managers, designers, and other engineers to build scalable, secure, and user-friendly solutions that meet business and customer needs.RequirementsCompetitive salary and performance...

Famliya in Australia is seeking a talented Software Engineer to design, develop, test, and maintain high‐quality software applications. You will work closely with product managers, designers, and other engineers to build scalable, secure, and user‐friendly solutions that meet business and customer needs.You will contribute to code quality through testing...

At Magentus, our goal is to create a healthier society through technology. We do that by delivering smart workflows that connect people, systems, and data –making care more intelligent, efficient, and accessible. Whether it's supporting clinicians, streamlining operations, or improving patient outcomes, we're here to make a real difference in healthcare...

Senior Software Engineer (iOS) will shape the technical direction of our team, partnering with Team Leaders and senior technology leaders to define strategic roadmaps and prioritise initiatives that deliver business outcomes. The Senior Software Engineer (iOS) is responsible for providing technical leadership and subject-matter expertise, making technical...

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s...