Senior Software Engineer

Senior Full-Stack role building a modern SaaS platform with Next.js and AI in a high-impact, fast-growing teamYour New Company
Join a fast-growing, Adelaide-based technology company delivering a proven SaaS platform to organisations across Australia and beyond. With a strong product foundation and an engaged customer base, the business is now entering an exciting growth phase-expanding into new markets while investing heavily in modern technologies, including Next.js and emerging agentic AI capabilities.
You'll be part of a high-performing, collaborative team that values innovation, autonomy, and real ownership, without the layers of corporate bureaucracy.

Your New Role
As a Senior Full-Stack Developer, you will play a key role in shaping and scaling a next-generation SaaS platform. Working across a modern tech stack, you'll contribute to both core product development and the integration of advanced AI capabilities.
Your responsibilities will include:

• Designing and delivering high-quality product features using Next.js, TypeScript, and modern backend technologies
• Contributing to the development of agentic AI capabilities, including frameworks and evaluation systems
• Scaling and optimising the platform to support growth into new markets
• Collaborating closely with product and engineering teams to shape technical direction
• Identifying opportunities for innovation, process improvement, and product enhancement
  
  This is a hands-on role where you'll have genuine influence over both technical decisions and product evolution.
  
  What You'll Need to Succeed:

You are a proactive, product-minded engineer with a passion for modern development and AI-driven innovation.
You will ideally bring:

• Strong experience with Next.js (including App Router) and TypeScript
• Background in SaaS product development, including multi-tenancy and authentication
• Experience with PostgreSQL/Supabase or similar technologies
• Exposure to agentic AI tools and frameworks (e.g., LangGraph, Vercel AI SDK, or similar)
• A strong understanding of building scalable, production-ready systems
• Experience working in agile, collaborative environments
• A proactive mindset, with the ability to contribute ideas beyond defined tasks
  
  Highly regarded:
• Experience with AI evaluation systems or testing frameworks
• Familiarity with modern deployment, testing, and CI/CD tools
• Comfort working with ambiguous problems and evolving requirements
  
  What You'll Get in Return
• A high-impact role in a growing SaaS business with real customers
• The opportunity to work at the forefront of AI-first product development
• A collaborative, experienced team with strong technical capability
• Genuine ownership and influence over product and technical direction
• A flexible, hybrid working environment in Adelaide

What You Need to Do Now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV to [email protected] for further information.

At Hays, we value diversity and are passionate about placing people in roles where they can flourish and succeed. We actively encourage individuals from diverse backgrounds to apply.
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