Senior Backend Engineer

19 hours ago

Sydney, New South Wales, Australia Airtree Ventures Full time

This role is based in San Francisco, not Australia - we are trying something a little different to attract talent.

Airtree has recently invested in an Aussie-founded startup building the next generation of B2B software infrastructure. Your application will be reviewed by our portfolio company and they will contact you for an interview if successful. 

This is your opportunity to join an Australian-founded startup with a team in SF, at the ground floor — with a relocation package to SF and visa sponsorship for Australians ready to make the move to the US.

Below is a description of the role from the company.

You'll be joining the founding engineering team in San Francisco, working alongside the Australian founder and a small, world-class team of engineers. You'll have the chance to shape the technical foundation of a platform that's redefining how software is bought and sold, while experiencing life in one of the world's most dynamic tech ecosystems.

We'll handle the logistics: relocation support, visa sponsorship, and help getting set up in the US — so you can focus on doing your best work.

What you'll do
  • Design and build the core backend services that enable complex, asynchronous workflows across multiple systems.
  • Create the foundational frameworks used across the engineering team to power new product capabilities.
  • Own key design and architectural decisions, from scalability to resilience to developer experience.
  • Work closely with product and leadership to define how we build for speed, scale, and quality.
  • Set engineering standards, mentor peers, and help shape a high-performance culture.

Who you are

  • A systems thinker who designs for resilience, scalability, and observability.
  • Pragmatic and product-minded, balancing technical excellence with startup agility.
  • Passionate about developer experience, and building tools that empower others.
  • Excited by the chance to own greenfield systems from day one and influence long-term architecture.
  • Strong communicator who thrives in a fast-moving, collaborative environment.

Requirements

Your background
  • 5+ years of backend engineering experience, building and operating distributed systems.
  • Strong expertise in a modern backend language — Python, Go, Java, or similar.
  • Deep understanding of event-driven design, message queues, and asynchronous systems.
  • Experience with AWS/GCP and containerised environments.
  • Solid grasp of API design, data modelling, and database architecture.
  • (Bonus) Experience with orchestration engines, developer tools, or SDKs.

Ready to make the move?

Join a team that's moving fast, thinking globally, and building something with massive scale.
If you're an Australian engineer ready to take your career to Silicon Valley — this is your moment.

Benefits

What we offer
  • Relocation + visa sponsorship for Australians.
  • Competitive salary and meaningful equity — build what you own.
  • Unlimited paid time off, with a minimum recharge expectation.
  • Dedicated career development and learning allowances.
  • Fitness and mental health benefits.
  • A chance to live and work in San Francisco, while staying connected to the Australian startup community.

  • Senior Backend Engineer

    19 hours ago

    Sydney, New South Wales, Australia Nexl Full time $120,000 - $180,000 per year

    About UsNexl is the fast-growing LegalTech startup on a mission to elevate the business of law.Our platform, purpose-built for law firms, brings together CRM, collaboration, and client intelligence in one solution — empowering lawyers, marketers, and BD teams to deepen relationships, accelerate growth, and win more high-value work.We're backed by top...

  • Senior Backend Software Engineer

    3 days ago

    Sydney, New South Wales, Australia Convert Digital Full time $120,000 - $180,000 per year

    About Convert Digital:Convert Digital is a leading ecommerce agency with offices in Melbourne, Sydney, and Brisbane. We specialise in crafting dynamic ecommerce solutions using Shopify Plus and Commercetools, with a strong focus on headless architecture, to power some of Australia's most recognised retail brands.We're currently seeking a Senior Software...

  • Senior Backend .NET Engineer

    2 weeks ago

    Sydney, New South Wales, Australia Bluefin Resources Pty Limited Full time $114,600 - $117,600 per year

    Senior Backend .NET Engineer – Contract Major Retail Organisation | Sydney CBD | $950 + GST per day | 6-Month Engagement (Potential Extension) We are working with a leading Australian retail business on a high-profile Greenfield project. This role offers the chance to build a national coupon platform that will be rolled out across the country. You'll be...

  • Senior Backend Engineer

    1 week ago

    Sydney, New South Wales, Australia Canva Full time $120,000 - $180,000 per year

    Job DescriptionJoin the team redefining how the world experiences design.Hey, g'day, mabuhay, kia ora,你好, hallo, vítejteThanks for stopping by. We know job hunting can be a little time consuming and you're probably keen to find out what's on offer, so we'll get straight to the point.Where And How You Can WorkOur flagship campus is in Sydney. We also...

  • Senior Backend Engineer

    7 days ago

    Sydney, New South Wales, Australia Canva Full time $180,000 - $250,000 per year

    Job DescriptionJoin the team redefining how the world experiences design.Hey, g'day, mabuhay, kia ora,你好, hallo, vítejteThanks for stopping by. We know job hunting can be a little time consuming and you're probably keen to find out what's on offer, so we'll get straight to the point.Where And How You Can WorkOur flagship campus is in Sydney. We also...

  • Senior Backend Engineers

    1 week ago

    Sydney, New South Wales, Australia Assembl Talent Pty Ltd Full time $120,000 - $180,000 per year

    Interactive EdTech company is hiring a Senior Backend Engineer (Python/Django) to scale its adaptive learning platform powered by AI. Join a mission-driven team creating apps that guide students through lessons in real time, already supporting classrooms across Australia, North America and Asia.What you'll doEnhance web and mobile apps used by hundreds of...

  • Senior Backend Engineer

    2 weeks ago

    Sydney, New South Wales, Australia Atlassian Full time $180,000 - $250,000 per year

    OverviewWorking at AtlassianAtlassians can choose where they work – whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity.ResponsibilitiesWorking at AtlassianAtlassians can choose...

  • Senior Backend Engineer

    19 hours ago

    Sydney, New South Wales, Australia Airtree Ventures Full time

    This role is based in San Francisco, not Australia - we are trying something a little different to attract talent. Airtree has recently invested in an Aussie-founded startup building the next generation of B2B software infrastructure. Your application will be reviewed by our portfolio company and they will contact you for an interview if successful. This is...

  • Backend Engineer OBP

    7 days ago

    Sydney, New South Wales, Australia Ethos BeathChapman Full time $100,000 - $180,000 per year

    Salary:$135,000 – $150,000Location:Sydney or Gold Coast, Surfers ParadiseWork Type:Permanent Full-TimeHybrid:3 days office / 2 days from homeClassification:Information & Communication Technology → Developers / ProgrammersJoin a leading financial services organisation and help shape the future of digital lendingYou'll be part of a high-performing Banking...

  • Senior Backend Engineer

    1 week ago

    Sydney, New South Wales, Australia Big Red Group Full time $120,000 - $180,000 per year

    Big Red Group is the largest experience network in Australia and New Zealand. A powerful connector that provides more than 3000 experience operators with quality customers and the tourism industry with trusted intelligence and partnership.Australian owned, Big Red Group operates an industry-leading platform, enabling the wholesale distribution of experiences...