Buildxact

Senior Full Stack Developer - C#/.NET

Engineering - Melbourne, Victoria, Australia - Full Time

Senior Full Stack Developer – Build Tools That Build the World

Melbourne, AU (Hybrid) | Engineering Team | Greenfield Projects + Real Impact

Want to write code that doesn’t just push pixels—but powers an entire industry?
At Buildxact, we’re helping builders and tradespeople run their businesses smarter, faster, and with way less chaos. We’re looking for a skilled Senior Full Stack Developer to help us scale new greenfield features and evolve a robust, cloud-first SaaS platform trusted by thousands.

Why You’ll Love It Here:

  • Greenfield Energy – Help us build brand-new features and product lines from scratch

  • Real Tech, Real Users – Everything you ship gets used by builders IRL

  • Modern Stack – C#, .NET Core, GraphQL, Angular, Flutter, Azure—and AI-assisted coding tools like Copilot

  • Tight Team Vibes – Agile, cross-functional, collaborative—and no ego zone

What You’ll Be Doing:

  • Build and ship features that solve real problems for builders and small businesses

  • Maintain and evolve existing systems with clean, scalable, testable code

  • Contribute to roadmap planning and estimation with your tech expertise

  • Own your work—write it, test it, ship it, support it

  • Implement automated testing and CI/CD pipelines

  • Help shape product architecture and best practices

  • Collaborate with Product Managers, Designers, QA, and Support to ship value fast

You’ll Thrive If You Have:

  • 7+ years of experience delivering and building full-stack products in a SaaS, cloud-first environment, with a strong track record of ownership and technical leadership

  • Deep expertise in C#, ASP.NET Core, EF Core, and the .NET ecosystem

  • Proficiency with Angular is ideal (but React or Vue works too—backed by solid Typescript/JS and CSS fundamentals)

  • Experience in GraphQL (HotChocolate), Azure cloud services, or Flutter is highly valued

  • You’re already using GitHub Copilot or similar tools and understand their strengths/limits

  • You take pride in writing quality code—but also know when “done” is better than “perfect”

  • A customer-first mindset and a natural urge to mentor and support others

The Buildxact Way:

We build like the people we serve: with simplicity, grit, and purpose. Our values are:
It’s yours to nail
Customer success is our success
Do what’s right
Keep it simple

Please note that Buildxact is not able to consider applicants who require visa sponsorship now or in the future. To be eligible for this role, candidates must hold current and unrestricted work rights in Australia at the time of application. 

Apply: Senior Full Stack Developer - C#/.NET
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This Role is Hybrid in Melbourne - Are you okay with 2 days per week onsite?
Note: If the candidate is not Victoria-based, they may need to attend the office from time to time as requested by the employer.*
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